[libvirt] [PATCH v2 21/38] Teach wireshark plugin about VIR_NET_STREAM_SKIP
Ideally, this would be generated, but to achieve that
corresponding XDR definitions needed to go into a different .x
file. But they belong just to the one that they are right now.
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
tools/wireshark/src/packet-libvirt.c | 48 ++++++++++++++++++++++++++++++++++++
tools/wireshark/src/packet-libvirt.h | 2 ++
2 files changed, 50 insertions(+)
diff --git a/tools/wireshark/src/packet-libvirt.c b/tools/wireshark/src/packet-libvirt.c
index 260161e..be82a23 100644
--- a/tools/wireshark/src/packet-libvirt.c
+++ b/tools/wireshark/src/packet-libvirt.c
@@ -50,8 +50,11 @@ static int hf_libvirt_serial = -1;
static int hf_libvirt_status = -1;
static int hf_libvirt_stream = -1;
static int hf_libvirt_num_of_fds = -1;
+static int hf_libvirt_stream_skip_length = -1;
+static int hf_libvirt_stream_skip = -1;
int hf_libvirt_unknown = -1;
static gint ett_libvirt = -1;
+static gint ett_libvirt_stream_skip = -1;
#define XDR_PRIMITIVE_DISSECTOR(xtype, ctype, ftype) \
static gboolean \
@@ -326,6 +329,36 @@ dissect_libvirt_payload_xdr_data(tvbuff_t *tvb, proto_tree *tree,
gint payload_l
dissect_libvirt_fds(tvb, start + payload_length, nfds);
}
+static gboolean
+dissect_xdr_stream_skip(tvbuff_t *tvb, proto_tree *tree, XDR *xdrs, int hf)
+{
+ goffset start;
+ proto_item *ti;
+
+ start = xdr_getpos(xdrs);
+ if (hf == -1) {
+ ti = proto_tree_add_item(tree, hf_libvirt_stream_skip, tvb, start, -1, ENC_NA);
+ } else {
+ header_field_info *hfinfo;
+ hfinfo = proto_registrar_get_nth(hf_libvirt_stream_skip);
+ ti = proto_tree_add_item(tree, hf, tvb, start, -1, ENC_NA);
+ proto_item_append_text(ti, " :: %s", hfinfo->name);
+ }
+ tree = proto_item_add_subtree(ti, ett_libvirt_stream_skip);
+
+ hf = hf_libvirt_stream_skip_length;
+ if (!dissect_xdr_u_hyper(tvb, tree, xdrs, hf)) return FALSE;
+ proto_item_set_len(ti, xdr_getpos(xdrs) - start);
+ return TRUE;
+}
+
+
+static void
+dissect_libvirt_stream_skip(tvbuff_t *tvb, proto_tree *tree, gint payload_length, guint32
status)
+{
+ proto_tree_add_item(tree, hf_libvirt_stream_skip_length, tvb, VIR_HEADER_LEN, -1,
ENC_NA);
+}
+
static void
dissect_libvirt_payload(tvbuff_t *tvb, proto_tree *tree,
guint32 prog, guint32 proc, guint32 type, guint32 status)
@@ -346,6 +379,8 @@ dissect_libvirt_payload(tvbuff_t *tvb, proto_tree *tree,
dissect_libvirt_payload_xdr_data(tvb, tree, payload_length, status,
VIR_ERROR_MESSAGE_DISSECTOR);
} else if (type == VIR_NET_STREAM) { /* implicitly, status == VIR_NET_CONTINUE */
dissect_libvirt_stream(tvb, tree, payload_length);
+ } else if (type == VIR_NET_STREAM_SKIP) {
+ dissect_libvirt_payload_xdr_data(tvb, tree, payload_length, status,
dissect_xdr_stream_skip);
} else {
goto unknown;
}
@@ -525,6 +560,18 @@ proto_register_libvirt(void)
NULL, 0x0,
NULL, HFILL}
},
+ { &hf_libvirt_stream_skip,
+ { "stream_skip", "libvirt.stream_skip",
+ FT_BYTES, BASE_NONE,
+ NULL, 0x0,
+ NULL, HFILL}
+ },
+ { &hf_libvirt_stream_skip_length,
+ { "length", "libvirt.stream_skip.length",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL}
+ },
{ &hf_libvirt_unknown,
{ "unknown", "libvirt.unknown",
FT_BYTES, BASE_NONE,
@@ -535,6 +582,7 @@ proto_register_libvirt(void)
static gint *ett[] = {
VIR_DYNAMIC_ETTSET
+ &ett_libvirt_stream_skip,
&ett_libvirt
};
diff --git a/tools/wireshark/src/packet-libvirt.h b/tools/wireshark/src/packet-libvirt.h
index 5f99fdf..006aa6d 100644
--- a/tools/wireshark/src/packet-libvirt.h
+++ b/tools/wireshark/src/packet-libvirt.h
@@ -53,6 +53,7 @@ enum vir_net_message_type {
VIR_NET_STREAM = 3,
VIR_NET_CALL_WITH_FDS = 4,
VIR_NET_REPLY_WITH_FDS = 5,
+ VIR_NET_STREAM_SKIP = 6,
};
enum vir_net_message_status {
@@ -76,6 +77,7 @@ static const value_string type_strings[] = {
{ VIR_NET_STREAM, "STREAM" },
{ VIR_NET_CALL_WITH_FDS, "CALL_WITH_FDS" },
{ VIR_NET_REPLY_WITH_FDS, "REPLY_WITH_FDS" },
+ { VIR_NET_STREAM_SKIP, "STREAM_SKIP" },
{ -1, NULL }
};
--
2.10.2