Wireshark-dev: [Wireshark-dev] [PATCH 1/3] tipc: update discovery protocol header according to
From: <erik.hugne@xxxxxxxxxxxx>
Date: Mon, 7 Oct 2013 10:09:50 +0200
From: Erik Hugne <erik.hugne@xxxxxxxxxxxx> Dissection of word 1 in the TIPC ndisc protocol header is wrong. The field called "Broadcast ack no" should be "Node Signature" (16 bits wide). "Requested Links" is also wrong. This should actually be 5 bits reserved, followed by a 8 bit "Minor protocol version" field Signed-off-by: Erik Hugne <erik.hugne@xxxxxxxxxxxx> --- epan/dissectors/packet-tipc.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/epan/dissectors/packet-tipc.c b/epan/dissectors/packet-tipc.c index 864d789..f5d0999 100644 --- a/epan/dissectors/packet-tipc.c +++ b/epan/dissectors/packet-tipc.c @@ -160,7 +160,8 @@ static int hf_tipcv2_transport_seq_no = -1; static int hf_tipcv2_redundant_link = -1; static int hf_tipcv2_bearer_id = -1; static int hf_tipcv2_conn_mgr_msg_ack = -1; -static int hf_tipcv2_req_links = -1; +static int hf_tipcv2_minor_pv = -1; +static int hf_tipcv2_node_sig = -1; /* added for TIPC v1.7 */ static int hf_tipcv2_timestamp = -1; @@ -1438,7 +1439,7 @@ uses a special message format, with the following generic structure: +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ w0:|vers |msg usr|hdr sz |n|resrv| packet size | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -w1:|m typ|0| requested links | broadcast ack no | +w1:|m typ|00000| minor_pv | node signature | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ w2:| destination domain | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ @@ -1463,9 +1464,10 @@ w9:| | */ /* W1 */ proto_tree_add_item(tipc_tree, hf_tipcv2_neighbour_mtype, tipc_tvb, offset, 4, ENC_BIG_ENDIAN); - /* Requested Links (12 bits) */ - proto_tree_add_item(tipc_tree, hf_tipcv2_req_links, tipc_tvb, offset, 4, ENC_BIG_ENDIAN); - proto_tree_add_item(tipc_tree, hf_tipcv2_broadcast_ack_no, tipc_tvb, offset, 4, ENC_BIG_ENDIAN); + /* Reserved 5 bits */ + /* Minor pv 8 bits */ + proto_tree_add_item(tipc_tree, hf_tipcv2_minor_pv, tipc_tvb, offset, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(tipc_tree, hf_tipcv2_node_sig, tipc_tvb, offset, 4, ENC_BIG_ENDIAN); offset = offset + 4; /* W2 */ /* Destination Domain */ @@ -2805,9 +2807,14 @@ proto_register_tipc(void) FT_UINT32, BASE_DEC, NULL, 0xffff0000, NULL, HFILL } }, - { &hf_tipcv2_req_links, - { "Requested Links", "tipcv2.req_links", - FT_UINT32, BASE_DEC, NULL, 0x0fff0000, + { &hf_tipcv2_minor_pv, + { "Minor protocol version", "tipcv2.minor_pv", + FT_UINT32, BASE_DEC, NULL, 0x00ff0000, + NULL, HFILL } + }, + { &hf_tipcv2_node_sig, + { "Node signature", "tipcv2.node_sig", + FT_UINT32, BASE_DEC, NULL, 0x0000FFFF, NULL, HFILL } }, { &hf_tipcv2_timestamp, -- 1.7.9.5
- References:
- [Wireshark-dev] [PATCH 0/3] TIPC dissector updates
- From: erik.hugne
- [Wireshark-dev] [PATCH 0/3] TIPC dissector updates
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