Hello,
I'm very new to the list as well as to etheral but the good design of
ethereal makes it possible for me to submit a patch for packet-osi.c.
It implements the "Inactive Subset" of the CLNP-protocol. The "Inactive
Subset" is just a single 0x00-byte instead of the full CLNP-layer.
With this patch it is possible to decode the lower 4 layers of the
"Siemens Industrial Ethernet" protocol aka "Sinec H1", which is used
to communicate with Siemens S5/S7 PLC's over Ethernet.
Further code for dissecting the higher layers of the protocol is in
preparation.
Attached is the patch and a small capture file of the protocol.
Gerrit Gehnen
--
Dr.-Ing. Gerrit Gehnen Abt. LT
ATR Industrie-Elektronik Textilstraße 2, 41751 Viersen, Germany
Tel. (+49)2162 485-362 Fax (+49)2162 485-100
http://www.atrie.de
75a76
> #define ISO8473_CLNP_INACTIVE 0x00
1458a1460,1471
> if (pd[offset]==ISO8473_CLNP_INACTIVE) {
> if (tree) {
> ti = proto_tree_add_item(tree, proto_clnp, offset, 1, NULL);
> clnp_tree = proto_item_add_subtree(ti, ett_clnp);
> proto_tree_add_item_format(clnp_tree, hf_clnp_id, offset, 1,
> clnp.cnf_proto_id,
> "Inactive subset");
> }
> dissect_cotp(pd, offset+1, fd, tree);
> return;
> }
>
1599a1613
> case ISO8473_CLNP_INACTIVE:
Attachment:
sinec_h1
Description: Binary data
