diff options
author | Nathan Neulinger <nneul@umr.edu> | 1999-12-09 04:02:50 +0000 |
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committer | Nathan Neulinger <nneul@umr.edu> | 1999-12-09 04:02:50 +0000 |
commit | 90cf5bbf2a88befb99563d3c825b49d6701472c1 (patch) | |
tree | 45ef1157d0144431707eda548054109602d2c984 /packet-atalk.c | |
parent | 0f128493823496ee681ecf797586557fe0f3cc29 (diff) |
extended nbp dissector, is stable, but i believe it's not completely correct yet
svn path=/trunk/; revision=1253
Diffstat (limited to 'packet-atalk.c')
-rw-r--r-- | packet-atalk.c | 109 |
1 files changed, 107 insertions, 2 deletions
diff --git a/packet-atalk.c b/packet-atalk.c index d45d8b2179..8fe423bb63 100644 --- a/packet-atalk.c +++ b/packet-atalk.c @@ -1,7 +1,7 @@ /* packet-atalk.c * Routines for Appletalk packet disassembly (DDP, currently). * - * $Id: packet-atalk.c,v 1.26 1999/12/08 23:55:01 nneul Exp $ + * $Id: packet-atalk.c,v 1.27 1999/12/09 04:02:50 nneul Exp $ * * Simon Wilkinson <sxw@dcs.ed.ac.uk> * @@ -54,9 +54,18 @@ static int hf_nbp_info = -1; static int hf_nbp_count = -1; static int hf_nbp_tid = -1; +static int hf_nbp_node_net; +static int hf_nbp_node_port; +static int hf_nbp_node_node; +static int hf_nbp_node_type; +static int hf_nbp_node_name; +static int hf_nbp_node_label; + static gint ett_nbp = -1; static gint ett_nbp_info = -1; +static gint ett_nbp_node = -1; static gint ett_ddp = -1; +static gint ett_pstring = -1; /* P = Padding, H = Hops, L = Len */ #if BYTE_ORDER == BIG_ENDIAN @@ -121,6 +130,46 @@ static const value_string nbp_op_vals[] = { {0, NULL} }; +int dissect_pascal_string(const u_char *pd, int offset, frame_data *fd, + proto_tree *tree, int hf_index) +{ + int len; + char *tmp; + + if ( ! BYTES_ARE_IN_FRAME(offset,1) ) { + dissect_data(pd,offset,fd,tree); + return END_OF_FRAME; + } + + len = pd[offset]; + if ( ! BYTES_ARE_IN_FRAME(offset,len) ) { + dissect_data(pd,offset,fd,tree); + return END_OF_FRAME; + } + offset++; + + if ( tree ) + { + char *tmp; + proto_tree *item; + proto_tree *subtree; + + tmp = g_malloc( len+1 ); + memcpy(tmp, &pd[offset], len); + tmp[len] = 0; + item = proto_tree_add_item(tree, hf_index, offset-1, len+1, tmp); + + subtree = proto_item_add_subtree(item, ett_pstring); + proto_tree_add_text(subtree, offset-1, 1, "Length: %d", len); + proto_tree_add_text(subtree, offset, len, "Data: %s", tmp); + + g_free(tmp); + } + offset += len; + + return offset; +} + static void dissect_rtmp_request(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) { dissect_data(pd, offset, fd, tree); @@ -139,6 +188,7 @@ dissect_nbp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) { proto_tree *nbp_info_tree; proto_item *ti, *info_item; guint op, count; + int i; if (!BYTES_ARE_IN_FRAME(offset, 2)) { dissect_data(pd, offset, fd, tree); @@ -168,6 +218,41 @@ dissect_nbp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) { proto_tree_add_item(nbp_info_tree, hf_nbp_op, offset, 1, pd[offset]); proto_tree_add_item(nbp_info_tree, hf_nbp_count, offset, 1, pd[offset]); proto_tree_add_item(nbp_tree, hf_nbp_tid, offset+1, 1, pd[offset+1]); + offset += 2; + + for (i=0; i<count; i++) { + struct atalk_ddp_addr addr; + proto_tree *node_item,*node_tree; + + if ( !BYTES_ARE_IN_FRAME(offset, 6) ) { + dissect_data(pd,offset,fd,nbp_tree); + return; + } + + node_item = proto_tree_add_text(nbp_tree, offset, 4, + "Node %d", i+1); + node_tree = proto_item_add_subtree(node_item, ett_nbp_node); + + addr.net = pntohs(&pd[offset]); + addr.node = pd[offset+2]; + addr.port = pd[offset+3]; + + /* note, this is probably wrong, I need to look at my info at work + tomorrow to straighten it out */ + + proto_tree_add_item(node_tree, hf_nbp_node_net, offset, 2, addr.net); + offset += 2; + proto_tree_add_item(node_tree, hf_nbp_node_node, offset, 1, addr.node); + offset++; + proto_tree_add_item(node_tree, hf_nbp_node_port, offset, 1, addr.port); + offset++; + + offset++; /* skip a null */ + + offset = dissect_pascal_string(pd,offset,fd,node_tree,hf_nbp_node_type); + offset = dissect_pascal_string(pd,offset,fd,node_tree,hf_nbp_node_name); + offset = dissect_pascal_string(pd,offset,fd,node_tree,hf_nbp_node_label); + } } return; @@ -297,6 +382,24 @@ proto_register_atalk(void) { &hf_nbp_count, { "Count", "nbp.count", FT_UINT8, BASE_DEC, NULL, 0x0F, "Count" }}, + { &hf_nbp_node_net, + { "Network", "nbp.net", FT_UINT16, BASE_DEC, + NULL, 0x0, "Network" }}, + { &hf_nbp_node_node, + { "Node", "nbp.node", FT_UINT8, BASE_DEC, + NULL, 0x0, "Node" }}, + { &hf_nbp_node_port, + { "Port", "nbp.port", FT_UINT8, BASE_DEC, + NULL, 0x0, "Port" }}, + { &hf_nbp_node_name, + { "Name", "nbp.name", FT_STRING, BASE_DEC, + NULL, 0x0, "Name" }}, + { &hf_nbp_node_type, + { "Type", "nbp.type", FT_STRING, BASE_DEC, + NULL, 0x0, "Type" }}, + { &hf_nbp_node_label, + { "Label", "nbp.label", FT_STRING, BASE_DEC, + NULL, 0x0, "Label" }}, { &hf_nbp_tid, { "Transaction ID", "nbp.tid", FT_UINT8, BASE_DEC, NULL, 0x0, "Transaction ID" }} @@ -305,7 +408,9 @@ proto_register_atalk(void) static gint *ett[] = { &ett_ddp, &ett_nbp, - &ett_nbp_info + &ett_nbp_info, + &ett_nbp_node, + &ett_pstring }; proto_ddp = proto_register_protocol("Datagram Delivery Protocol", "ddp"); |