static void
dissect_ap1394(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ti;
proto_tree *fh_tree = NULL;
guint16 etype;
tvbuff_t *next_tvb;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IP/IEEE1394");
col_clear(pinfo->cinfo, COL_INFO);
set_address_tvb(&pinfo->dl_src, AT_EUI64, 8, tvb, 8);
copy_address_shallow(&pinfo->src, &pinfo->dl_src);
set_address_tvb(&pinfo->dl_dst, AT_EUI64, 8, tvb, 0);
copy_address_shallow(&pinfo->dst, &pinfo->dl_dst);
if (tree) {
ti = proto_tree_add_protocol_format(tree, proto_ap1394, tvb, 0, 18,
"Apple IP-over-IEEE 1394, Src: %s, Dst: %s",
address_to_str(wmem_packet_scope(), &pinfo->src), address_to_str(wmem_packet_scope(), &pinfo->dst));
fh_tree = proto_item_add_subtree(ti, ett_ap1394);
proto_tree_add_item(fh_tree, hf_ap1394_dst, tvb, 0, 8, ENC_NA);
proto_tree_add_item(fh_tree, hf_ap1394_src, tvb, 8, 8, ENC_NA);
}
etype = tvb_get_ntohs(tvb, 16);
proto_tree_add_uint(fh_tree, hf_ap1394_type, tvb, 16, 2, etype);
next_tvb = tvb_new_subset_remaining(tvb, 18);
if (!dissector_try_uint(ethertype_subdissector_table, etype, next_tvb,
pinfo, tree))
call_dissector(data_handle, next_tvb, pinfo, tree);
}
static int get_address_v5(tvbuff_t *tvb, int offset,
socks_hash_entry_t *hash_info) {
/* decode the v5 address and return offset of next byte */
int a_type;
address addr;
a_type = tvb_get_guint8(tvb, offset);
offset += 1;
switch(a_type)
{
case 1: /* IPv4 address */
if ( hash_info) {
set_address_tvb(&addr, AT_IPv4, 4, tvb, offset);
copy_address_wmem(wmem_file_scope(), &hash_info->dst_addr, &addr);
}
offset += 4;
break;
case 4: /* IPv6 address */
if ( hash_info) {
set_address_tvb(&addr, AT_IPv6, 16, tvb, offset);
copy_address_wmem(wmem_file_scope(), &hash_info->dst_addr, &addr);
}
offset += 16;
break;
case 3: /* domain name address */
offset += tvb_get_guint8(tvb, offset) + 1;
break;
}
return offset;
}
static void
dissect_netrom_proto(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ti;
proto_tree *netrom_tree;
int offset;
#if 0
guint8 src_ssid;
guint8 dst_ssid;
#endif
guint8 op_code;
guint8 cct_index;
guint8 cct_id;
tvbuff_t *next_tvb;
col_set_str( pinfo->cinfo, COL_PROTOCOL, "NET/ROM" );
col_clear( pinfo->cinfo, COL_INFO );
offset = 0;
/* source */
set_address_tvb(&pinfo->dl_src, AT_AX25, AX25_ADDR_LEN, tvb, offset);
set_address_tvb(&pinfo->src, AT_AX25, AX25_ADDR_LEN, tvb, offset);
/* src_ssid = tvb_get_guint8(tvb, offset+6); */
offset += AX25_ADDR_LEN; /* step over src addr */
/* destination */
set_address_tvb(&pinfo->dl_dst, AT_AX25, AX25_ADDR_LEN, tvb, offset);
set_address_tvb(&pinfo->dst, AT_AX25, AX25_ADDR_LEN, tvb, offset);
/* dst_ssid = tvb_get_guint8(tvb, offset+6); */
offset += AX25_ADDR_LEN; /* step over dst addr */
offset += 1; /* step over ttl */
cct_index = tvb_get_guint8( tvb, offset );
offset += 1; /* step over cct index*/
cct_id = tvb_get_guint8( tvb, offset );
offset += 1; /* step over cct id */
offset += 1; /* step over n_s */
offset += 1; /* step over n_r */
/* frame type */
op_code = tvb_get_guint8( tvb, offset ) & 0x0f;
/*offset += 1;*/ /* step over op_code */
col_add_fstr( pinfo->cinfo, COL_INFO, "%s", val_to_str_const( op_code, op_code_vals_text, "Unknown" ));
/* if ( tree ) */
{
/* create display subtree for the protocol */
ti = proto_tree_add_protocol_format( tree, proto_netrom, tvb, 0, NETROM_HEADER_SIZE,
"NET/ROM, Src: %s, Dst: %s",
address_to_str(wmem_packet_scope(), &pinfo->src),
address_to_str(wmem_packet_scope(), &pinfo->dst));
netrom_tree = proto_item_add_subtree( ti, ett_netrom );
offset = 0;
/* source */
proto_tree_add_item( netrom_tree, hf_netrom_src, tvb, offset, AX25_ADDR_LEN, ENC_NA );
offset += AX25_ADDR_LEN;
/* destination */
proto_tree_add_item( netrom_tree, hf_netrom_dst, tvb, offset, AX25_ADDR_LEN, ENC_NA );
offset += AX25_ADDR_LEN;
/* ttl */
proto_tree_add_item( netrom_tree, hf_netrom_ttl, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
switch ( op_code )
{
case NETROM_PROTOEXT :
/* cct index */
proto_tree_add_item( netrom_tree, hf_netrom_my_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* cct id */
proto_tree_add_item( netrom_tree, hf_netrom_my_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* unused */
offset += 1;
/* unused */
offset += 1;
break;
case NETROM_CONNREQ :
/* cct index */
proto_tree_add_item( netrom_tree, hf_netrom_my_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* cct id */
proto_tree_add_item( netrom_tree, hf_netrom_my_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* unused */
offset += 1;
/* unused */
offset += 1;
break;
case NETROM_CONNACK :
/* your cct index */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* your cct id */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* my cct index */
proto_tree_add_item( netrom_tree, hf_netrom_my_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* my cct id */
proto_tree_add_item( netrom_tree, hf_netrom_my_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
break;
case NETROM_DISCREQ :
/* your cct index */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* your cct id */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* unused */
offset += 1;
/* unused */
offset += 1;
break;
case NETROM_DISCACK :
/* your cct index */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* your cct id */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* unused */
offset += 1;
/* unused */
offset += 1;
break;
case NETROM_INFO :
/* your cct index */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* your cct id */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* n_s */
proto_tree_add_item( netrom_tree, hf_netrom_n_s, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* n_r */
proto_tree_add_item( netrom_tree, hf_netrom_n_r, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
break;
case NETROM_INFOACK :
/* your cct index */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_index, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* your cct id */
proto_tree_add_item( netrom_tree, hf_netrom_your_cct_id, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
/* unused */
offset += 1;
/* n_r */
proto_tree_add_item( netrom_tree, hf_netrom_n_r, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
break;
default :
offset += 1;
offset += 1;
offset += 1;
offset += 1;
break;
}
/* type */
dissect_netrom_type( tvb,
offset,
pinfo,
netrom_tree,
hf_netrom_type,
ett_netrom_type,
&netrom_type_items
);
offset += 1;
switch ( op_code )
{
case NETROM_PROTOEXT :
break;
case NETROM_CONNREQ :
/* proposed window size */
proto_tree_add_item( netrom_tree, hf_netrom_pwindow, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
proto_tree_add_item( netrom_tree, hf_netrom_user, tvb, offset, AX25_ADDR_LEN, ENC_NA );
offset += AX25_ADDR_LEN;
proto_tree_add_item( netrom_tree, hf_netrom_node, tvb, offset, AX25_ADDR_LEN, ENC_NA );
offset += AX25_ADDR_LEN;
break;
case NETROM_CONNACK :
/* accepted window size */
proto_tree_add_item( netrom_tree, hf_netrom_awindow, tvb, offset, 1, ENC_BIG_ENDIAN );
offset += 1;
break;
case NETROM_DISCREQ :
break;
case NETROM_DISCACK :
break;
case NETROM_INFO :
break;
case NETROM_INFOACK :
break;
default :
break;
}
}
/* Call sub-dissectors here */
next_tvb = tvb_new_subset_remaining(tvb, offset);
switch ( op_code )
{
case NETROM_PROTOEXT :
if ( cct_index == NETROM_PROTO_IP && cct_id == NETROM_PROTO_IP )
call_dissector( ip_handle , next_tvb, pinfo, tree );
else
call_data_dissector(next_tvb, pinfo, tree );
break;
case NETROM_INFO :
default :
call_data_dissector(next_tvb, pinfo, tree );
break;
}
}
