Ethereal-dev: [Ethereal-dev] Patch for packet-dec-dnart.c revision 16349
Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.
From: Fred Hoekstra <fred.hoekstra@xxxxxxxxxxxx>
Date: Fri, 04 Nov 2005 20:55:26 +0100
Hi, Martin Hill has examined packet-dec-dnart.c and found some errors and made some improvements. Attached is a diff file for patching packet-dec-dnart.c, revision 16349, to incorporate these corrections. The file with applied patch has been fuzz tested up to Pass 3450 with a capture file of 5 MByte. Could these please be applied? Thanks, Fred Hoekstra
--- packet-dec-dnart.c 2005-11-04 16:03:44.000000000 +0100 +++ packet-dec-dnart.c.patch 2005-11-04 16:04:07.000000000 +0100 @@ -11,11 +11,11 @@ * Use was made of the following documentation: * (See URL http://linux-decnet.sourceforge.net/docs). * - * DECnet DIGITAL Network Architecture + * DECnet DIGITAL Network Architecture * Routing Layer Functional Specification * Version 2.0.0 May, 1983 * - * DECnet DIGITAL Network Architecture + * DECnet DIGITAL Network Architecture * NSP Functional Specification * Phase IV, Version 4.0.1, July 1984 * @@ -67,7 +67,7 @@ RT_CTL_ETH_ENDNODE_HELLO_MSG } ctl_msg_types; -#define DEC_RT_SIZE 27 +#define DEC_RT_SIZE 27 #define DATA_SEGMENT_MSG 0x00 /* "Data segment" */ #define LINK_SERVICE_MSG 0x10 /* "Link service message" */ @@ -87,24 +87,26 @@ /* Flag bits */ -#define RT_FLAGS_LONG_MSG 0x04 /* Actually: 0x06->long, 0x02->short*/ -#define RT_FLAGS_RQR 0x08 -#define RT_FLAGS_RTS 0x10 +#define RT_FLAGS_CTRL_MSG 0x01 +#define RT_FLAGS_LONG_MSG 0x04 /* Actually: 0x06->long, 0x02->short*/ +#define RT_FLAGS_RQR 0x08 +#define RT_FLAGS_RTS 0x10 #define RT_FLAGS_INTRA_ETHER 0x20 -#define RT_FLAGS_DISCARD 0x40 -#define RT_FLAGS_PAD 0x80 +#define RT_FLAGS_DISCARD 0x40 +#define RT_FLAGS_PAD 0x80 static int proto_dec_rt = -1; static int hf_dec_routing_flags = -1; +static int hf_dec_rt_ctrl_msg = -1; static int hf_dec_rt_long_msg = -1; static int hf_dec_rt_short_msg = -1; static int hf_dec_rt_rqr = -1; static int hf_dec_rt_rts = -1; static int hf_dec_rt_inter_eth = -1; static int hf_dec_rt_discard = -1; -static int hf_dec_rt_dst_mac = -1; -static int hf_dec_rt_src_mac = -1; +static int hf_dec_rt_dst_addr = -1; +static int hf_dec_rt_src_addr = -1; static int hf_dec_rt_nl2 = -1; static int hf_dec_rt_service_class = -1; static int hf_dec_rt_protocol_type = -1; @@ -114,6 +116,7 @@ /* Routing control messages */ static int hf_dec_rt_visited_nodes = -1; static int hf_dec_ctl_msgs = -1; +static int hf_dec_ctl_msg_hdr = -1; static int hf_dec_nsp_msgs = -1; static int hf_dec_rt_tiinfo = -1; static int hf_dec_rt_blk_size = -1; @@ -135,6 +138,7 @@ static int hf_dec_rt_neighbor = -1; static int hf_dec_rt_seed = -1; static int hf_dec_rt_elist = -1; +static int hf_dec_rt_ename = -1; static int hf_dec_rt_router_id = -1; static int hf_dec_rt_router_state = -1; static int hf_dec_rt_router_prio = -1; @@ -163,6 +167,7 @@ static gint ett_dec_rt_nsp_msg = -1; static gint ett_dec_rt_info_flags = -1; static gint ett_dec_rt_list = -1; +static gint ett_dec_rt_rlist = -1; static gint ett_dec_rt_state = -1; static gint ett_dec_flow_control = -1; static gint ett_dec_sess_contents = -1; @@ -171,14 +176,14 @@ static gint dec_dna_previous_total = 0; /*static const value_string protocol_id_vals[] = { - { 0x6001, "DEC DNA dump/load" }, - { 0x6002, "DEC DNA Remote Console" }, - { 0x6003, "DEC DNA routing" }, - { 0x6004, "DEC DNA Local Area Transport" }, - { 0x6005, "DEC DNA diagnostics" }, - { 0x6006, "DEC DNA Customer specific" }, - { 0x6007, "DEC DNA System Communication Architecture" }, - { 0, NULL } + { 0x6001, "DEC DNA dump/load" }, + { 0x6002, "DEC DNA Remote Console" }, + { 0x6003, "DEC DNA routing" }, + { 0x6004, "DEC DNA Local Area Transport" }, + { 0x6005, "DEC DNA diagnostics" }, + { 0x6006, "DEC DNA Customer specific" }, + { 0x6007, "DEC DNA System Communication Architecture" }, + { 0, NULL } };*/ static const value_string rt_msg_type_vals[] = { @@ -189,7 +194,7 @@ { 0x4 , "Level 2 routing message" }, { 0x5 , "Ethernet router hello message" }, { 0x6 , "Ethernet endnode hello message" }, - { 0, NULL } + { 0, NULL } }; static const value_string nsp_msg_type_vals[] = { @@ -208,17 +213,7 @@ { 0x48 , "Disconnect confirm" }, { 0x60 , "Begin of segment / End of segment" }, { 0x68 , "Retransmitted connect initiate" }, - { 0, NULL } -}; - -static const value_string routing_flags[] = { - {0x02, "Short data packet format"}, - {0x06, "Long data packet format"}, - {0x08, "Return to sender request"}, - {0x10, "Packet on return trip"}, - {0x20, "Intra-Ethernet packet"}, - {0x40, "Discarded packet"}, - {0x0, NULL} + { 0, NULL } }; static const value_string rt_iinfo_flags[] = { @@ -290,18 +285,8 @@ { 0, NULL} }; -#define RT_TYPE_TOPOLOGY_CHANGE 2 -#define RT_TYPE_HELLO 25 - -static const char initial_sep[] = " ("; -static const char cont_sep[] = ", "; - -#define APPEND_BOOLEAN_FLAG(flag, item, string) \ - if(flag){ \ - if(item) \ - proto_item_append_text(item, string, sep); \ - sep = cont_sep; \ - } +#define RT_TYPE_TOPOLOGY_CHANGE 2 +#define RT_TYPE_HELLO 25 #if ! defined true #define true 1 @@ -366,6 +351,26 @@ handle_disc_init_contents( guint offset); +static char * +dnet_ntoa(const guint8 *data) +{ + if (data[0] == 0xAA && data[1] == 0x00 && data[2] == 0x04 && data[3] == 0x00) { + guint16 dnet_addr = data[4] | (data[5] << 8); + return g_strdup_printf("%d.%d", dnet_addr >> 10, dnet_addr & 0x03FF); + } + return NULL; +} + +static void +set_dnet_address(address *paddr_src, address *paddr_tgt) +{ + if (paddr_tgt->type != AT_STRINGZ && paddr_src->type == AT_ETHER) { + char *addr = dnet_ntoa(paddr_src->data); + if (addr != NULL) + SET_ADDRESS(paddr_tgt, AT_STRINGZ, 1, addr); + } +} + static void dissect_dec_rt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { @@ -380,144 +385,62 @@ proto_tree *rt_tree; proto_tree *flags_tree; proto_item *ti; - const char *sep; + char *addr; offset = 0; if (check_col(pinfo->cinfo, COL_PROTOCOL)) { - col_clear(pinfo->cinfo, COL_PROTOCOL); + col_clear(pinfo->cinfo, COL_PROTOCOL); } if (check_col(pinfo->cinfo, COL_PROTOCOL)) { - col_set_str(pinfo->cinfo, COL_PROTOCOL, "NSP"); + col_set_str(pinfo->cinfo, COL_PROTOCOL, "DEC DNA"); } if (check_col(pinfo->cinfo, COL_INFO)) { - col_clear(pinfo->cinfo, COL_INFO); + col_clear(pinfo->cinfo, COL_INFO); } - payload_length = tvb_get_ntohs(tvb, offset); + + set_dnet_address(&pinfo->dl_src, &pinfo->net_src); + set_dnet_address(&pinfo->dl_src, &pinfo->src); + set_dnet_address(&pinfo->dl_dst, &pinfo->net_dst); + set_dnet_address(&pinfo->dl_dst, &pinfo->dst); + + payload_length = tvb_get_letohs(tvb, offset); offset += 2; msg_flags = tvb_get_guint8(tvb, offset); - ti = proto_tree_add_item(tree, proto_dec_rt, tvb, 0, -1, - TRUE); - rt_tree = proto_item_add_subtree(ti, ett_dec_rt); + ti = proto_tree_add_item(tree, proto_dec_rt, tvb, 0, -1, + TRUE); + rt_tree = proto_item_add_subtree(ti, ett_dec_rt); /* When padding, the first byte after the padding has the real routing flags */ if (msg_flags & 0x80) { /* There is padding present, skip it */ padding_length = msg_flags & 0x7f; offset += padding_length; - /* The real routing flag */ - msg_flags = tvb_get_guint8(tvb, offset); - ti = proto_tree_add_uint(rt_tree, hf_dec_routing_flags, tvb, - offset, 1, msg_flags); - flags_tree = proto_item_add_subtree(ti, ett_dec_routing_flags); - sep = initial_sep; - if (msg_flags & RT_FLAGS_LONG_MSG) { - APPEND_BOOLEAN_FLAG(msg_flags & RT_FLAGS_LONG_MSG, ti, - "%sLong message"); - proto_tree_add_uint(flags_tree, hf_dec_rt_long_msg, - tvb, offset, 1, msg_flags & 0x03); - long_msg = true; - } else { - APPEND_BOOLEAN_FLAG(msg_flags & RT_FLAGS_LONG_MSG, ti, - "%sShort message"); - proto_tree_add_item(flags_tree, hf_dec_rt_short_msg, - tvb, offset, 1, msg_flags & 0x03); - } - APPEND_BOOLEAN_FLAG(msg_flags & RT_FLAGS_RQR, ti, - "%sReturn to Sender"); - proto_tree_add_boolean(flags_tree, hf_dec_rt_rqr, tvb, - offset, 1, msg_flags); - APPEND_BOOLEAN_FLAG(msg_flags & RT_FLAGS_RTS, ti, - "%sReturn trip"); - proto_tree_add_boolean(flags_tree, hf_dec_rt_rts, tvb, - offset, 1, msg_flags); - APPEND_BOOLEAN_FLAG(msg_flags & RT_FLAGS_INTRA_ETHER, ti, - "%sIntra Ethernet"); - proto_tree_add_boolean(flags_tree, hf_dec_rt_inter_eth, tvb, - offset, 1, msg_flags); - APPEND_BOOLEAN_FLAG(msg_flags & RT_FLAGS_DISCARD, ti, - "%sDiscarded"); - proto_tree_add_boolean(flags_tree, hf_dec_rt_discard, tvb, - offset, 1, msg_flags); - if (sep != initial_sep) { - /* We put something in; put in the terminating ")" */ - proto_item_append_text(ti, ")"); - } - /* That finished the routing flags field - Now we must discriminate between short and long messages - We handle long messages first. - */ - if (long_msg) { - /* Increment offset by three: - 1 to get past the flags field - 2 to skip the DEC area/subarea field - */ - offset += 3; - proto_tree_add_item(rt_tree, hf_dec_rt_dst_mac, tvb, - offset, 6, FALSE); - /* Skip 6 bytes for the MAC and - 2 bytes for DEC area/subarea - */ - offset += 8; - proto_tree_add_item(rt_tree, hf_dec_rt_src_mac, tvb, - offset, 6, FALSE); - /* Proceed to the NL2 byte */ - offset += 6; - proto_tree_add_uint(rt_tree, hf_dec_rt_nl2, tvb, - offset, 1, rt_zero); - offset++; - rt_visit_count = tvb_get_guint8(tvb, offset); - proto_tree_add_uint(rt_tree, hf_dec_rt_visit_count, tvb, - offset, 1, rt_visit_count); - offset++; - proto_tree_add_uint(rt_tree, hf_dec_rt_service_class, tvb, - offset, 1, rt_zero); - offset++; - proto_tree_add_uint(rt_tree, hf_dec_rt_protocol_type, tvb, - offset, 1, rt_zero); - offset++; - } else { - /* Now the short message format - Increment offset to get past the flags field - */ - offset++; - dst_node = tvb_get_letohs(tvb, offset); - proto_tree_add_item(rt_tree, hf_dec_rt_dst_node, tvb, - offset, 2, TRUE); - offset += 2; - src_node = tvb_get_letohs(tvb, offset); - proto_tree_add_item(rt_tree, hf_dec_rt_src_node, tvb, - offset, 2, TRUE); - offset += 2; - forward = tvb_get_guint8(tvb, offset); - proto_tree_add_uint(rt_tree, hf_dec_rt_visited_nodes, tvb, - offset, 1, forward); - offset++; - } } + + /* The real routing flag */ msg_flags = tvb_get_guint8(tvb, offset); - /* This gives us either the routing control msg flag or the - NSP message identifier - */ - if (msg_flags & 0x01) { - /* This is a control message - Documentation is somewhat confusing at this point - Data messages have a short or long header prepended, - however, the Routing Layer control messages do not have - a header prepended. Routing Layer control messages are - signalled by having the least significant bit set. - If this bit is set, ignore the header. - This branch is taken for Routing Layer control messages. - */ + ti = proto_tree_add_uint(rt_tree, hf_dec_routing_flags, tvb, + offset, 1, msg_flags); + flags_tree = proto_item_add_subtree(ti, ett_dec_routing_flags); + + if (msg_flags & RT_FLAGS_CTRL_MSG) { guint new_offset; + guint8 ctl_msg_type; proto_tree *ctl_msg_tree; - proto_item *ti; - ti = proto_tree_add_uint( - rt_tree, hf_dec_ctl_msgs, tvb, offset, 1, msg_flags); + ctl_msg_type = (msg_flags >> 1) & 0x7; + proto_tree_add_boolean(flags_tree, hf_dec_rt_ctrl_msg, tvb, offset, 1, + msg_flags); + proto_tree_add_uint(flags_tree, hf_dec_ctl_msgs, tvb, offset, 1, + msg_flags); + + ti = proto_tree_add_uint(rt_tree, hf_dec_ctl_msg_hdr, tvb, offset, 1, + ctl_msg_type); ctl_msg_tree = proto_item_add_subtree(ti, ett_dec_rt_ctl_msg); + /* Get past the msg_flags */ offset++; - switch ((msg_flags >> 1) & 0x7) { + switch (ctl_msg_type) { case RT_CTL_INITIALIZATION: new_offset = do_initialization_msg( @@ -548,7 +471,85 @@ default: break; } + } else if (msg_flags & RT_FLAGS_LONG_MSG){ + proto_tree_add_uint(flags_tree, hf_dec_rt_long_msg, + tvb, offset, 1, msg_flags); + proto_tree_add_boolean(flags_tree, hf_dec_rt_rqr, tvb, + offset, 1, msg_flags); + proto_tree_add_boolean(flags_tree, hf_dec_rt_rts, tvb, + offset, 1, msg_flags); + proto_tree_add_boolean(flags_tree, hf_dec_rt_inter_eth, tvb, + offset, 1, msg_flags); + proto_tree_add_boolean(flags_tree, hf_dec_rt_discard, tvb, + offset, 1, msg_flags); + long_msg = true; + + /* Increment offset by three: + 1 to get past the flags field + 2 to skip the DEC area/subarea field + */ + offset += 3; + ti = proto_tree_add_item(rt_tree, hf_dec_rt_dst_addr, tvb, + offset, 6, FALSE); + addr = dnet_ntoa(ep_tvb_memdup(tvb, offset, 6)); + if (addr != NULL) { + proto_item_append_text(ti, " (%s)", addr); + g_free(addr); + } + + /* Skip 6 bytes for the MAC and + 2 bytes for DEC area/subarea + */ + offset += 8; + ti = proto_tree_add_item(rt_tree, hf_dec_rt_src_addr, tvb, + offset, 6, FALSE); + addr = dnet_ntoa(ep_tvb_memdup(tvb, offset, 6)); + if (addr != NULL) { + proto_item_append_text(ti, " (%s)", addr); + g_free(addr); + } + + /* Proceed to the NL2 byte */ + offset += 6; + proto_tree_add_uint(rt_tree, hf_dec_rt_nl2, tvb, + offset, 1, rt_zero); + offset++; + rt_visit_count = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(rt_tree, hf_dec_rt_visit_count, tvb, + offset, 1, rt_visit_count); + offset++; + proto_tree_add_uint(rt_tree, hf_dec_rt_service_class, tvb, + offset, 1, rt_zero); + offset++; + proto_tree_add_uint(rt_tree, hf_dec_rt_protocol_type, tvb, + offset, 1, rt_zero); + offset++; } else { + proto_tree_add_item(flags_tree, hf_dec_rt_short_msg, + tvb, offset, 1, msg_flags); + proto_tree_add_boolean(flags_tree, hf_dec_rt_rqr, tvb, + offset, 1, msg_flags); + proto_tree_add_boolean(flags_tree, hf_dec_rt_rts, tvb, + offset, 1, msg_flags); + + /* Increment offset to get past the flags field + */ + offset++; + dst_node = tvb_get_letohs(tvb, offset); + proto_tree_add_item(rt_tree, hf_dec_rt_dst_node, tvb, + offset, 2, TRUE); + offset += 2; + src_node = tvb_get_letohs(tvb, offset); + proto_tree_add_item(rt_tree, hf_dec_rt_src_node, tvb, + offset, 2, TRUE); + offset += 2; + forward = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(rt_tree, hf_dec_rt_visited_nodes, tvb, + offset, 1, forward); + offset++; + } + + if (!(msg_flags & RT_FLAGS_CTRL_MSG)) { /* It is not a routing control message */ proto_tree *nsp_msg_tree; proto_item *ti; @@ -556,14 +557,13 @@ guint16 dst_node, src_node; nsp_msg_type = tvb_get_guint8(tvb, offset); - ti = proto_tree_add_uint( + ti = proto_tree_add_uint( tree, hf_dec_nsp_msgs, tvb, offset, 1, nsp_msg_type); if (nsp_msg_type == NOP_MSG) { /* Only test data in this msg */ return; } - nsp_msg_tree = - proto_item_add_subtree(ti, ett_dec_rt_nsp_msg); + nsp_msg_tree = proto_item_add_subtree(ti, ett_dec_rt_nsp_msg); /* Get past the nsp_msg_type */ offset++; dst_node = tvb_get_letohs(tvb, offset); @@ -572,8 +572,8 @@ offset += 2; if (nsp_msg_type == CONN_ACK_MSG) { if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "NSP connect acknowledgement"); + col_add_str(pinfo->cinfo, COL_INFO, + "NSP connect acknowledgement"); /* Done with this msg type */ return; } @@ -605,27 +605,27 @@ guint8 remainder_count; if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "Routing control, initialization message"); + col_add_str(pinfo->cinfo, COL_INFO, + "Routing control, initialization message"); } - proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, + my_offset, 2, TRUE); offset += 2; - proto_tree_add_item(tree, hf_dec_rt_tiinfo, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_tiinfo, tvb, + my_offset, 2, TRUE); my_offset += 2; - proto_tree_add_item(tree, hf_dec_rt_blk_size, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_blk_size, tvb, + my_offset, 2, TRUE); my_offset += 2; version = tvb_get_guint8(tvb, my_offset); eco_nr = tvb_get_guint8(tvb, my_offset + 1); user_eco = tvb_get_guint8(tvb, my_offset + 2); - proto_tree_add_none_format(tree, hf_dec_rt_version, tvb, + proto_tree_add_none_format(tree, hf_dec_rt_version, tvb, my_offset, 3, "Routing Layer version: %d.%d.%d.", version, eco_nr, user_eco); my_offset +=3; - proto_tree_add_item(tree, hf_dec_rt_timer, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_timer, tvb, + my_offset, 2, TRUE); my_offset += 2; remainder_count = tvb_get_guint8(tvb, my_offset); if (remainder_count != 0) { @@ -648,11 +648,11 @@ guint8 remainder_count; if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "Routing control, verification message"); + col_add_str(pinfo->cinfo, COL_INFO, + "Routing control, verification message"); } - proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, + my_offset, 2, TRUE); offset += 2; remainder_count = tvb_get_guint8(tvb, my_offset); if (remainder_count != 0) { @@ -672,14 +672,14 @@ guint offset) { guint my_offset = offset; - guint8 remainder_count; + guint remainder_count; if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "Routing control, hello/test message"); + col_add_str(pinfo->cinfo, COL_INFO, + "Routing control, hello/test message"); } - proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, + my_offset, 2, TRUE); my_offset += 2; remainder_count = tvb_length_remaining(tvb, my_offset); if (remainder_count != 0) { @@ -700,12 +700,13 @@ guint msg) { guint my_offset = offset; - guint16 checksum = 1; + guint32 my_checksum = 1; + guint16 checksum; guint16 count, startid, rtginfo; - guint8 remainder_count; + guint remainder_count; - proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_src_node, tvb, + my_offset, 2, TRUE); /* Skip the 1-byte reserved field */ my_offset += 3; remainder_count = tvb_length_remaining(tvb, my_offset); @@ -714,34 +715,44 @@ count = tvb_get_letohs(tvb, my_offset); startid = tvb_get_letohs(tvb, my_offset + 2); rtginfo = tvb_get_letohs(tvb, my_offset + 4); - my_offset += 6; if (msg == 3) { if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "Routing control, Level 1 routing message"); + col_add_str(pinfo->cinfo, COL_INFO, + "Routing control, Level 1 routing message"); } - proto_tree_add_none_format(tree, hf_dec_rt_segment, tvb, + proto_tree_add_none_format(tree, hf_dec_rt_segment, tvb, my_offset, 6, "Segment: count:%d, start Id: %d, hops:%d, cost: %d", count, startid, (rtginfo & 0x7c00) >> 10, rtginfo & 0x3ff); } else { if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "Routing control, Level 2 routing message"); + col_add_str(pinfo->cinfo, COL_INFO, + "Routing control, Level 2 routing message"); } - proto_tree_add_none_format(tree, hf_dec_rt_segment, tvb, + proto_tree_add_none_format(tree, hf_dec_rt_segment, tvb, my_offset, 6, "Segment: count:%d, start area: %d, hops:%d, cost: %d", count, startid, (rtginfo & 0x7c00) >> 10, rtginfo & 0x3ff); }; - checksum += (count + startid + rtginfo); + my_checksum += (count + startid + rtginfo); + my_offset += 6; remainder_count -= 6; - } while (remainder_count > 1); - if (checksum != tvb_get_letohs(tvb, my_offset)) { - proto_tree_add_none_format(tree, hf_dec_rt_segment, tvb, + } while (remainder_count > 6); + my_offset += remainder_count - 2; + /* fold 32 bit sum into 16 bits */ + while (my_checksum>>16) + my_checksum = (my_checksum & 0xffff) + (my_checksum >> 16); + checksum = tvb_get_letohs(tvb, my_offset); + if (checksum != my_checksum) { + proto_tree_add_none_format(tree, hf_dec_rt_segment, tvb, + my_offset, 2, + "Checksum mismatch(computed 0x%x <> received 0x%x)", + my_checksum, checksum); + } else { + proto_tree_add_none_format(tree, hf_dec_rt_segment, tvb, my_offset, 2, - "Segment: checksum mismatch(computed 0x%x != received 0x%x)", - checksum, tvb_get_letohs(tvb, my_offset)); + "Checksum: match (computed 0x%x = received 0x%x)", + my_checksum, checksum); } my_offset += 2; return (my_offset); @@ -756,93 +767,88 @@ guint msg) { guint my_offset = offset; - guint8 remainder_count, iinfo, priority; + guint8 iinfo, priority; guint16 version, eco_nr, user_eco, timer; proto_item *ti; proto_tree *iinfo_tree; - const char *sep; + char *addr; version = tvb_get_guint8(tvb, my_offset); eco_nr = tvb_get_guint8(tvb, my_offset + 1); user_eco = tvb_get_guint8(tvb, my_offset + 2); - proto_tree_add_none_format(tree, hf_dec_rt_version, tvb, + proto_tree_add_none_format(tree, hf_dec_rt_version, tvb, my_offset, 3, "Routing Layer Version: %d.%d.%d", version, eco_nr, user_eco); my_offset +=3; - proto_tree_add_item(tree, hf_dec_rt_id, tvb, - my_offset, 6, TRUE); + ti = proto_tree_add_item(tree, hf_dec_rt_id, tvb, + my_offset, 6, TRUE); + addr = dnet_ntoa(ep_tvb_memdup(tvb, my_offset, 6)); + if (addr != NULL) { + proto_item_append_text(ti, " (%s)", addr); + g_free(addr); + } my_offset += 6; iinfo = tvb_get_guint8(tvb, my_offset); - ti = proto_tree_add_uint( + ti = proto_tree_add_uint( tree, hf_dec_rt_iinfo, tvb, my_offset, 1, iinfo); - iinfo_tree = proto_item_add_subtree(ti, ett_dec_rt_info_flags); - sep = initial_sep; - proto_tree_add_uint( + iinfo_tree = proto_item_add_subtree(ti, ett_dec_rt_info_flags); + proto_tree_add_uint( iinfo_tree, hf_dec_rt_iinfo_node_type, tvb, my_offset, 1, iinfo); - APPEND_BOOLEAN_FLAG(iinfo & 0x4, ti, - "%sVerification required"); proto_tree_add_boolean(iinfo_tree, hf_dec_rt_iinfo_vrf, tvb, my_offset, 1, iinfo); - APPEND_BOOLEAN_FLAG(iinfo & 0x8, ti, - "%sRejected"); proto_tree_add_boolean(iinfo_tree, hf_dec_rt_iinfo_rej, tvb, my_offset, 1, iinfo); - APPEND_BOOLEAN_FLAG(iinfo & 0x10, ti, - "%sVerification failed"); proto_tree_add_boolean(iinfo_tree, hf_dec_rt_iinfo_verf, tvb, my_offset, 1, iinfo); - APPEND_BOOLEAN_FLAG(iinfo & 0x20, ti, - "%sNo multicast traffic"); proto_tree_add_boolean(iinfo_tree, hf_dec_rt_iinfo_mta, tvb, my_offset, 1, iinfo); - APPEND_BOOLEAN_FLAG(iinfo & 0x4, ti, - "%sBlocking requested"); - if (sep != initial_sep) { - /* We put something in; put in the terminating ")" */ - proto_item_append_text(ti, ")"); - } proto_tree_add_boolean(iinfo_tree, hf_dec_rt_iinfo_blkreq, tvb, my_offset, 1, iinfo); my_offset++; - proto_tree_add_item(tree, hf_dec_rt_blk_size, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_blk_size, tvb, + my_offset, 2, TRUE); my_offset += 2; if (msg == 5) { /* Ethernet router hello message Has a 'priority' field in this position */ if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "Routing control, Ethernet Router Hello message"); + col_add_str(pinfo->cinfo, COL_INFO, + "Routing control, Ethernet Router Hello message"); } priority = tvb_get_guint8(tvb, my_offset); - proto_tree_add_uint( + proto_tree_add_uint( tree, hf_dec_rt_iprio, tvb, my_offset, 1, priority); my_offset++; } /* Skip the 'area' field common to both hello messages */ - my_offset += 2; + my_offset += 1; if (msg == 6) { /* The endnode hello message has 'seed' and 'neighbor' fields */ guint8 seed; if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "Routing control, Endnode Hello message"); + col_add_str(pinfo->cinfo, COL_INFO, + "Routing control, Endnode Hello message"); } seed = tvb_get_guint8(tvb, my_offset); - proto_tree_add_uint( - tree, hf_dec_rt_seed, tvb, my_offset, 1, seed); - my_offset++; - proto_tree_add_item(tree, hf_dec_rt_neighbor, tvb, - my_offset, 6, TRUE); + proto_tree_add_item(tree, hf_dec_rt_seed, tvb, + my_offset, 8, seed); + my_offset += 8; + ti = proto_tree_add_item(tree, hf_dec_rt_neighbor, tvb, + my_offset, 6, TRUE); + addr = dnet_ntoa(ep_tvb_memdup(tvb, my_offset, 6)); + if (addr != NULL) { + proto_item_append_text(ti, " (%s)", addr); + g_free(addr); + } my_offset += 6; } /*'Timer' and 'mpd' fields are common 'mpd' field is reserved */ timer = tvb_get_letohs(tvb, my_offset); proto_tree_add_item(tree, hf_dec_rt_timer, tvb, - my_offset, 2, TRUE); - my_offset += 2; + my_offset, 2, TRUE); + my_offset += 3; if (msg == 5) { /* The Ethernet router hello message contains a list of router states @@ -850,35 +856,57 @@ up to 128 bytes of test data at the end. These data are left to be dissected as 'data'. */ - proto_item *ti; - proto_tree *list_tree; + proto_item *ti, *ti_ether; + proto_tree *list_tree, *list_ether; + guint8 image_len; + guint8 item_len; ti = proto_tree_add_item(tree, hf_dec_rt_elist, tvb, - my_offset, 7, TRUE); + my_offset, 7, TRUE); my_offset += 7; + /* image field is preceded by count of remainder of field */ + image_len = tvb_get_guint8(tvb, my_offset); + my_offset++; + ti = proto_tree_add_none_format(tree, hf_dec_rt_elist, + tvb, my_offset, 1, "Router States"); list_tree = proto_item_add_subtree(ti, ett_dec_rt_list); - remainder_count = - tvb_reported_length_remaining(tvb, my_offset); - do { - /* if the remainder_count < 7, there are - no more router/state items */ - guint8 pristate; - proto_item *ti; - proto_tree *pstate_tree; - - ti = proto_tree_add_item(list_tree, hf_dec_rt_router_id, - tvb, my_offset, 6, TRUE); - my_offset += 6; - pstate_tree = proto_item_add_subtree(ti, ett_dec_rt_state); - pristate = tvb_get_guint8(tvb, my_offset); - proto_tree_add_string(list_tree, hf_dec_rt_router_state, - tvb, my_offset, 1, - ((pristate & 0x80) ? "known 2-way": "unknown")); - proto_tree_add_uint(list_tree, hf_dec_rt_router_prio, - tvb, my_offset, 1, pristate); + while (image_len > 0) { + ti_ether = proto_tree_add_bytes(list_tree, hf_dec_rt_ename, tvb, + my_offset, 7, tvb_get_ptr(tvb, my_offset, 7)); + list_ether = proto_item_add_subtree(ti_ether, ett_dec_rt_rlist); + my_offset += 7; + image_len -= 7; + + /* image field is preceded by count of remainder of field */ + item_len = tvb_get_guint8(tvb, my_offset); my_offset++; - remainder_count -= 7; - } while (remainder_count >= 7); + image_len -= 1; + while (item_len > 0) + { + guint8 pristate; + proto_item *ti; + proto_tree *pstate_tree; + + ti = proto_tree_add_item(list_ether, hf_dec_rt_router_id, + tvb, my_offset, 6, TRUE); + addr = dnet_ntoa(ep_tvb_memdup(tvb, my_offset, 6)); + if (addr != NULL) { + proto_item_append_text(ti, " (%s)", addr); + g_free(addr); + } + my_offset += 6; + pstate_tree = proto_item_add_subtree(ti, ett_dec_rt_state); + pristate = tvb_get_guint8(tvb, my_offset); + proto_tree_add_string(list_ether, hf_dec_rt_router_state, + tvb, my_offset, 1, + ((pristate & 0x80) ? "known 2-way": "unknown")); + proto_tree_add_uint(list_ether, hf_dec_rt_router_prio, + tvb, my_offset, 1, pristate); + my_offset++; + item_len -= 7; + image_len -= 7; + } + } } return (my_offset); } @@ -933,21 +961,21 @@ if (check_col(pinfo->cinfo, COL_INFO)) { if (nsp_msg_type == BOM_MSG) { dec_dna_total_bytes_this_segment = 0; - col_append_fstr(pinfo->cinfo, COL_INFO, - "msg nr. %d: start of segment", + col_append_fstr(pinfo->cinfo, COL_INFO, + "msg nr. %d: start of segment", seg_num & 0xfff); } else if (nsp_msg_type == DATA_SEGMENT_MSG) { - col_append_fstr(pinfo->cinfo, COL_INFO, - "msg nr. %d: continuation segment ", + col_append_fstr(pinfo->cinfo, COL_INFO, + "msg nr. %d: continuation segment ", seg_num & 0xfff); } else if (nsp_msg_type == EOM_MSG) { col_append_fstr(pinfo->cinfo, COL_INFO, - "msg nr. %d: end of segment", + "msg nr. %d: end of segment", seg_num & 0xfff); } else if (nsp_msg_type == BOM_EOM_MSG) { dec_dna_total_bytes_this_segment = 0; col_append_fstr(pinfo->cinfo, COL_INFO, - "msg nr. %d single segment", + "msg nr. %d single segment", seg_num & 0xfff); } } @@ -963,16 +991,16 @@ dec_dna_previous_total = dec_dna_total_bytes_this_segment; dec_dna_total_bytes_this_segment += data_length; if (check_col(pinfo->cinfo, COL_INFO)) { - col_append_fstr(pinfo->cinfo, COL_INFO, - ", bytes this segment: %d, total sofar:%d", + col_append_fstr(pinfo->cinfo, COL_INFO, + ", bytes this segment: %d, total so far:%d", data_length, dec_dna_total_bytes_this_segment); } /* We are done, return my_offset */ break; case INTERRUPT_MSG: /* "Interrupt message" */ if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "NSP interrupt message"); + col_add_str(pinfo->cinfo, COL_INFO, + "NSP interrupt message"); } ack_num = tvb_get_letohs(tvb, my_offset); if (ack_num & 0x8000) { @@ -1014,8 +1042,8 @@ break; case LINK_SERVICE_MSG: /* "Link service message" */ if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "NSP link control message"); + col_add_str(pinfo->cinfo, COL_INFO, + "NSP link control message"); } ack_num = tvb_get_letohs(tvb, my_offset); if (ack_num & 0x8000) { @@ -1057,25 +1085,25 @@ if (check_col(pinfo->cinfo, COL_INFO)) { switch(ls_flags) { case 0: /* no change */ - col_append_str(pinfo->cinfo, COL_INFO, - "(no change)"); + col_append_str(pinfo->cinfo, COL_INFO, + "(no change)"); break; case 1: /* stop sending data */ - col_append_str(pinfo->cinfo, COL_INFO, - "(stop)"); + col_append_str(pinfo->cinfo, COL_INFO, + "(stop)"); break; case 2: /* send data */ - col_append_str(pinfo->cinfo, COL_INFO, - "(go)"); + col_append_str(pinfo->cinfo, COL_INFO, + "(go)"); break; default: break; } } fc_val = tvb_get_guint8(tvb, my_offset + 1); - ti = proto_tree_add_uint(tree, hf_dec_flow_control, tvb, - my_offset, 1, ls_flags); - flow_control_tree = + ti = proto_tree_add_uint(tree, hf_dec_flow_control, tvb, + my_offset, 1, ls_flags); + flow_control_tree = proto_item_add_subtree(ti, ett_dec_flow_control); proto_tree_add_none_format(flow_control_tree, hf_dec_rt_fc_val, tvb, my_offset, 2, @@ -1093,8 +1121,8 @@ my_offset += 2; /* There may be an optional ack_oth field */ if (check_col(pinfo->cinfo, COL_INFO)) { - col_append_fstr(pinfo->cinfo, COL_INFO, - "NSP data %s message(%d)", + col_append_fstr(pinfo->cinfo, COL_INFO, + "NSP data %s message(%d)", (ack_num & 0x1000) ? "NAK" : "ACK", ack_num & 0xfff); } @@ -1114,8 +1142,8 @@ break; case OTHER_DATA_ACK_MSG: /* "Other data acknowledgement message" */ if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "NSP other data ACK message"); + col_add_str(pinfo->cinfo, COL_INFO, + "NSP other data ACK message"); } ack_num = tvb_get_letohs(tvb, my_offset); proto_tree_add_none_format(tree, hf_dec_rt_acknum, @@ -1142,20 +1170,20 @@ case CONN_CONFIRM_MSG: /* "Connect confirm" */ case CONN_INITIATE_MSG: /* "Connect initiate" */ if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "NSP connect confirm/initiate message"); + col_add_str(pinfo->cinfo, COL_INFO, + "NSP connect confirm/initiate message"); } services = tvb_get_guint8(tvb, my_offset); - proto_tree_add_uint(tree, hf_dec_rt_services, tvb, - my_offset, 1, services); + proto_tree_add_uint(tree, hf_dec_rt_services, tvb, + my_offset, 1, services); my_offset++; info = tvb_get_guint8(tvb, my_offset); - proto_tree_add_uint(tree, hf_dec_rt_info, tvb, - my_offset, 1, info); + proto_tree_add_uint(tree, hf_dec_rt_info, tvb, + my_offset, 1, info); my_offset++; seg_size = tvb_get_letohs(tvb, my_offset); - proto_tree_add_item(tree, hf_dec_rt_seg_size, tvb, - my_offset, 2, TRUE); + proto_tree_add_item(tree, hf_dec_rt_seg_size, tvb, + my_offset, 2, TRUE); my_offset += 2; my_offset = handle_connect_contents( @@ -1164,12 +1192,12 @@ case DISCONN_INITIATE_MSG: /* "Disconnect initiate" */ case DISCONN_CONFIRM_MSG: /* "Disconnect confirm" */ if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_str(pinfo->cinfo, COL_INFO, - "NSP disconnect initiate/confirm message"); + col_add_str(pinfo->cinfo, COL_INFO, + "NSP disconnect initiate/confirm message"); } reason = tvb_get_letohs(tvb, my_offset); proto_tree_add_item(tree, hf_dec_disc_reason, tvb, - my_offset, 2, TRUE); + my_offset, 2, TRUE); my_offset += 2; if (nsp_msg_type == DISCONN_INITIATE_MSG) { my_offset = @@ -1300,8 +1328,8 @@ static const true_false_string yesno = { - "Yes", - "No" + "Yes", + "No" }; void @@ -1311,238 +1339,250 @@ static hf_register_info hf[] = { /* Mesage header items */ { &hf_dec_routing_flags, - { "Routing flags", "dec_dna.flags", - FT_UINT8, BASE_HEX, VALS(&routing_flags), 0x0, - "DNA routing flag", HFILL }}, + { "Routing flags", "dec_dna.flags", + FT_UINT8, BASE_HEX, NULL, 0x0, + "DNA routing flag", HFILL }}, + { &hf_dec_rt_ctrl_msg, + { "Control packet", "dec_dna.flags.control", + FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_CTRL_MSG, + "Control packet", HFILL }}, { &hf_dec_rt_long_msg, - { "Long message", "dec_dna.flags.msglen", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Long message indicator", HFILL }}, + { "Long data packet format", "dec_dna.flags.msglen", + FT_UINT8, BASE_HEX, NULL, 0x06, + "Long message indicator", HFILL }}, { &hf_dec_rt_short_msg, - { "Short message", "dec_dna.flags.msglen", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Short message indicator", HFILL }}, + { "Short data packet format", "dec_dna.flags.msglen", + FT_UINT8, BASE_HEX, NULL, 0x06, + "Short message indicator", HFILL }}, { &hf_dec_rt_rqr, - { "Return to Sender Request", "dec_dna.flags.RQR", - FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_RQR, - "Return to Sender", HFILL }}, + { "Return to Sender Request", "dec_dna.flags.RQR", + FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_RQR, + "Return to Sender", HFILL }}, { &hf_dec_rt_rts, - { "Packet on return trip", "dec_dna.flags.RTS", - FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_RTS, - "Packet on return trip", HFILL }}, + { "Packet on return trip", "dec_dna.flags.RTS", + FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_RTS, + "Packet on return trip", HFILL }}, { &hf_dec_rt_inter_eth, - { "Intra-ethernet packet", "dec_dna.flags.intra_eth", - FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_INTRA_ETHER, - "Intra-ethernet packet", HFILL }}, + { "Intra-ethernet packet", "dec_dna.flags.intra_eth", + FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_INTRA_ETHER, + "Intra-ethernet packet", HFILL }}, { &hf_dec_rt_discard, - { "Discarded packet", "dec_dna.flags.discard", - FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_DISCARD, - "Discarded packet", HFILL }}, - { &hf_dec_rt_dst_mac, - { "Destination MAC", "dec_dna.dst.mac", - FT_ETHER, BASE_NONE, NULL, 0x0, - "Destination MAC address", HFILL }}, - { &hf_dec_rt_src_mac, - { "Source MAC", "dec_dna.src.mac", - FT_ETHER, BASE_NONE, NULL, 0x0, - "Source MAC address", HFILL }}, + { "Discarded packet", "dec_dna.flags.discard", + FT_BOOLEAN, 8, TFS(&yesno), RT_FLAGS_DISCARD, + "Discarded packet", HFILL }}, + { &hf_dec_rt_dst_addr, + { "Destination Address", "dec_dna.dst.address", + FT_ETHER, BASE_NONE, NULL, 0x0, + "Destination address", HFILL }}, + { &hf_dec_rt_src_addr, + { "Source Address", "dec_dna.src.addr", + FT_ETHER, BASE_NONE, NULL, 0x0, + "Source address", HFILL }}, { &hf_dec_rt_nl2, - { "Next level 2 router", "dec_dna.nl2", - FT_UINT8, BASE_HEX, NULL, 0x0, - "reserved", HFILL }}, + { "Next level 2 router", "dec_dna.nl2", + FT_UINT8, BASE_HEX, NULL, 0x0, + "reserved", HFILL }}, { &hf_dec_rt_service_class, - { "Service class", "dec_dna.svc_cls", - FT_UINT8, BASE_HEX, NULL, 0x0, - "reserved", HFILL }}, + { "Service class", "dec_dna.svc_cls", + FT_UINT8, BASE_HEX, NULL, 0x0, + "reserved", HFILL }}, { &hf_dec_rt_protocol_type, - { "Protocol type", "dec_dna.proto_type", - FT_UINT8, BASE_HEX, NULL, 0x0, - "reserved", HFILL }}, + { "Protocol type", "dec_dna.proto_type", + FT_UINT8, BASE_HEX, NULL, 0x0, + "reserved", HFILL }}, { &hf_dec_rt_visit_count, - { "Visit count", "dec_dna.visit_cnt", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Visit count", HFILL }}, + { "Visit count", "dec_dna.visit_cnt", + FT_UINT8, BASE_HEX, NULL, 0x0, + "Visit count", HFILL }}, { &hf_dec_flow_control, - { "Flow control", "dec_dna.nsp.flow_control", - FT_UINT8, BASE_HEX, VALS(&rt_flow_control_vals), 0x3, - "Flow control(stop, go)", HFILL }}, + { "Flow control", "dec_dna.nsp.flow_control", + FT_UINT8, BASE_HEX, VALS(&rt_flow_control_vals), 0x3, + "Flow control(stop, go)", HFILL }}, { &hf_dec_rt_services, { "Requested services", "dec_dna.nsp.services", - FT_UINT8, BASE_HEX, VALS(&rt_services_vals), 0x0c, - "Services requested", HFILL }}, + FT_UINT8, BASE_HEX, VALS(&rt_services_vals), 0x0c, + "Services requested", HFILL }}, { &hf_dec_rt_info, - { "Version info", "dec_dna.nsp.info", - FT_UINT8, BASE_HEX, VALS(&rt_info_version_vals), 0x03, - "Version info", HFILL }}, + { "Version info", "dec_dna.nsp.info", + FT_UINT8, BASE_HEX, VALS(&rt_info_version_vals), 0x03, + "Version info", HFILL }}, { &hf_dec_rt_dst_node, - { "Destination node", "dec_dna.dst_node", - FT_UINT16, BASE_HEX, NULL, 0x0, - "Destination node", HFILL }}, + { "Destination node", "dec_dna.dst_node", + FT_UINT16, BASE_HEX, NULL, 0x0, + "Destination node", HFILL }}, { &hf_dec_rt_seg_size, { "Maximum data segment size", "dec_dna.nsp.segsize", - FT_UINT16, BASE_DEC, NULL, 0x0, - "Max. segment size", HFILL }}, + FT_UINT16, BASE_DEC, NULL, 0x0, + "Max. segment size", HFILL }}, { &hf_dec_rt_src_node, - { "Source node", "dec_dna.src_node", - FT_UINT16, BASE_HEX, NULL, 0x0, - "Source node", HFILL }}, + { "Source node", "dec_dna.src_node", + FT_UINT16, BASE_HEX, NULL, 0x0, + "Source node", HFILL }}, { &hf_dec_rt_segnum, - { "Message number", "dec_dna.nsp.segnum", - FT_UINT16, BASE_DEC, NULL, 0xfff, - "Segment number", HFILL }}, + { "Message number", "dec_dna.nsp.segnum", + FT_UINT16, BASE_DEC, NULL, 0xfff, + "Segment number", HFILL }}, { &hf_dec_rt_delay, { "Delayed ACK allowed", "dec_dna.nsp.delay", - FT_BOOLEAN, 16, TFS(&yesno), 0x1000, - "Delayed ACK allowed?", HFILL }}, + FT_BOOLEAN, 16, TFS(&yesno), 0x1000, + "Delayed ACK allowed?", HFILL }}, { &hf_dec_rt_visited_nodes, { "Nodes visited ty this package", "dec_dna.vst_node", - FT_UINT8, BASE_DEC, NULL, 0x0, - "Nodes visited", HFILL }}, + FT_UINT8, BASE_DEC, NULL, 0x0, + "Nodes visited", HFILL }}, /* Control messsage items */ { &hf_dec_ctl_msgs, - { "Routing control message", "dec_dna.rt.msg_type", - FT_UINT8, BASE_HEX, VALS(&rt_msg_type_vals), 0xe, - "Routing control", HFILL }}, + { "Routing control message", "dec_dna.rt.msg_type", + FT_UINT8, BASE_HEX, VALS(&rt_msg_type_vals), 0xe, + "Routing control", HFILL }}, + { &hf_dec_ctl_msg_hdr, + { "Routing control message", "dec_dna.rt.msg_type", + FT_UINT8, BASE_HEX, VALS(&rt_msg_type_vals), 0xe, + "Routing control", HFILL }}, { &hf_dec_nsp_msgs, - { "DNA NSP message", "dec_dna.nsp.msg_type", - FT_UINT8, BASE_HEX, VALS(&nsp_msg_type_vals), 0x0, - "NSP message", HFILL }}, + { "DNA NSP message", "dec_dna.nsp.msg_type", + FT_UINT8, BASE_HEX, VALS(&nsp_msg_type_vals), 0x0, + "NSP message", HFILL }}, { &hf_dec_rt_acknum, - { "Ack/Nak", "dec_dna.ctl.acknum", - FT_NONE, BASE_NONE, NULL, 0x0, - "ack/nak number", HFILL }}, + { "Ack/Nak", "dec_dna.ctl.acknum", + FT_NONE, BASE_NONE, NULL, 0x0, + "ack/nak number", HFILL }}, { &hf_dec_rt_fc_val, - { "Flow control", "dec_dna.nsp.fc_val", - FT_NONE, BASE_NONE, NULL, 0x0, - "Flow control", HFILL }}, + { "Flow control", "dec_dna.nsp.fc_val", + FT_NONE, BASE_NONE, NULL, 0x0, + "Flow control", HFILL }}, { &hf_dec_rt_tiinfo, - { "Routing information", "dec_dna.ctl.tiinfo", - FT_UINT8, BASE_HEX, VALS(&rt_tiinfo_vals), 0x0, - "Routing information", HFILL }}, + { "Routing information", "dec_dna.ctl.tiinfo", + FT_UINT8, BASE_HEX, VALS(&rt_tiinfo_vals), 0x0, + "Routing information", HFILL }}, { &hf_dec_rt_blk_size, - { "Block size", "dec_dna.ctl.blk_size", - FT_UINT16, BASE_DEC, NULL, 0x0, - "Block size", HFILL }}, + { "Block size", "dec_dna.ctl.blk_size", + FT_UINT16, BASE_DEC, NULL, 0x0, + "Block size", HFILL }}, { &hf_dec_disc_reason, { "Reason for disconnect","dec_dna.nsp.disc_reason", - FT_UINT16, BASE_HEX, VALS(&rt_disc_reason_vals), 0x0, - "Disconnect reason", HFILL }}, + FT_UINT16, BASE_HEX, VALS(&rt_disc_reason_vals), 0x0, + "Disconnect reason", HFILL }}, { &hf_dec_rt_version, - { "Version", "dec_dna.ctl.version", - FT_NONE, BASE_NONE, NULL, 0x0, - "Control protocol version", HFILL }}, + { "Version", "dec_dna.ctl.version", + FT_NONE, BASE_NONE, NULL, 0x0, + "Control protocol version", HFILL }}, { &hf_dec_rt_timer, { "Hello timer(seconds)", "dec_dna.ctl.timer", - FT_UINT16, BASE_DEC, NULL, 0x0, - "Hello timer in seconds", HFILL }}, + FT_UINT16, BASE_DEC, NULL, 0x0, + "Hello timer in seconds", HFILL }}, { &hf_dec_rt_reserved, { "Reserved", "dec_dna.ctl.reserved", - FT_BYTES, BASE_NONE, NULL, 0x0, - "Reserved", HFILL }}, + FT_BYTES, BASE_NONE, NULL, 0x0, + "Reserved", HFILL }}, { &hf_dec_rt_fcnval, { "Verification message function value", "dec_dna.ctl.fcnval", - FT_BYTES, BASE_NONE, NULL, 0x0, - "Routing Verification function", HFILL }}, + FT_BYTES, BASE_NONE, NULL, 0x0, + "Routing Verification function", HFILL }}, { &hf_dec_rt_test_data, { "Test message data", "dec_dna.ctl.test_data", - FT_BYTES, BASE_NONE, NULL, 0x0, - "Routing Test message data", HFILL }}, + FT_BYTES, BASE_NONE, NULL, 0x0, + "Routing Test message data", HFILL }}, { &hf_dec_rt_segment, - { "Segment", "dec_dna.ctl.segment", - FT_NONE, BASE_NONE, NULL, 0x0, - "Routing Segment", HFILL }}, + { "Segment", "dec_dna.ctl.segment", + FT_NONE, BASE_NONE, NULL, 0x0, + "Routing Segment", HFILL }}, { &hf_dec_rt_id, - { "Transmitting system ID", "dec_dna.ctl.id", - FT_ETHER, BASE_NONE, NULL, 0x0, - "Transmitting system ID", HFILL }}, + { "Transmitting system ID", "dec_dna.ctl.id", + FT_ETHER, BASE_NONE, NULL, 0x0, + "Transmitting system ID", HFILL }}, { &hf_dec_rt_iinfo, - { "Routing information", "dec_dna.ctl.tiinfo", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Routing information", HFILL }}, + { "Routing information", "dec_dna.ctl.tiinfo", + FT_UINT8, BASE_HEX, NULL, 0x0, + "Routing information", HFILL }}, { &hf_dec_rt_iinfo_node_type, - { "Node type", "dec_dna.ctl.iinfo.node_type", - FT_UINT8, BASE_HEX, VALS(&rt_iinfo_node_type_vals), 0x03, - "Node type", HFILL }}, + { "Node type", "dec_dna.ctl.iinfo.node_type", + FT_UINT8, BASE_HEX, VALS(&rt_iinfo_node_type_vals), 0x03, + "Node type", HFILL }}, { &hf_dec_rt_iinfo_vrf, - { "Verification required", "dec_dna.ctl.iinfo.vrf", - FT_BOOLEAN, 8, TFS(&yesno), 0x4, - "Verification required?", HFILL }}, + { "Verification required", "dec_dna.ctl.iinfo.vrf", + FT_BOOLEAN, 8, TFS(&yesno), 0x4, + "Verification required?", HFILL }}, { &hf_dec_rt_iinfo_rej, - { "Rejected", "dec_dna.ctl.iinfo.rej", - FT_BOOLEAN, 8, TFS(&yesno), 0x8, - "Rejected message", HFILL }}, + { "Rejected", "dec_dna.ctl.iinfo.rej", + FT_BOOLEAN, 8, TFS(&yesno), 0x8, + "Rejected message", HFILL }}, { &hf_dec_rt_iinfo_verf, - { "Verification failed", "dec_dna.ctl.iinfo.verf", - FT_BOOLEAN, 8, TFS(&yesno), 0x10, - "Verification failed?", HFILL }}, + { "Verification failed", "dec_dna.ctl.iinfo.verf", + FT_BOOLEAN, 8, TFS(&yesno), 0x10, + "Verification failed?", HFILL }}, { &hf_dec_rt_iinfo_mta, - { "Accepts multicast traffic", "dec_dna.ctl.iinfo.mta", - FT_BOOLEAN, 8, TFS(&yesno), 0x20, - "Accepts multicast traffic?", HFILL }}, + { "Accepts multicast traffic", "dec_dna.ctl.iinfo.mta", + FT_BOOLEAN, 8, TFS(&yesno), 0x20, + "Accepts multicast traffic?", HFILL }}, { &hf_dec_rt_iinfo_blkreq, - { "Blocking requested", "dec_dna.ctl.iinfo.blkreq", - FT_BOOLEAN, 8, TFS(&yesno), 0x40, - "Blocking requested?", HFILL }}, + { "Blocking requested", "dec_dna.ctl.iinfo.blkreq", + FT_BOOLEAN, 8, TFS(&yesno), 0x40, + "Blocking requested?", HFILL }}, { &hf_dec_rt_iprio, - { "Routing priority", "dec_dna.ctl.prio", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Routing priority", HFILL }}, + { "Routing priority", "dec_dna.ctl.prio", + FT_UINT8, BASE_HEX, NULL, 0x0, + "Routing priority", HFILL }}, { &hf_dec_rt_neighbor, - { "Neighbor", "dec_dna.ctl_neighbor", - FT_ETHER, BASE_NONE, NULL, 0x0, - "Neighbour ID", HFILL }}, + { "Neighbor", "dec_dna.ctl_neighbor", + FT_ETHER, BASE_NONE, NULL, 0x0, + "Neighbour ID", HFILL }}, { &hf_dec_rt_seed, - { "Verification seed", "dec_dna.ctl.seed", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Verification seed", HFILL }}, + { "Verification seed", "dec_dna.ctl.seed", + FT_BYTES, BASE_NONE, NULL, 0x0, + "Verification seed", HFILL }}, { &hf_dec_rt_elist, - { "List of router states", "dec_dna.ctl.elist", - FT_STRING, BASE_NONE, NULL, 0x0, - "Router states", HFILL }}, + { "List of router states", "dec_dna.ctl.elist", + FT_NONE, BASE_NONE, NULL, 0x0, + "Router states", HFILL }}, + { &hf_dec_rt_ename, + { "Ethernet name", "dec_dna.ctl.ename", + FT_BYTES, BASE_HEX, NULL, 0x0, + "Ethernet name", HFILL }}, { &hf_dec_rt_router_id, - { "Router ID", "dec_dna.ctl.router_id", - FT_ETHER, BASE_NONE, NULL, 0x0, - "Router ID", HFILL }}, + { "Router ID", "dec_dna.ctl.router_id", + FT_ETHER, BASE_NONE, NULL, 0x0, + "Router ID", HFILL }}, { &hf_dec_rt_router_state, - { "Router state", "dec_dna.ctl.router_state", - FT_STRING, BASE_NONE, NULL, 0x00, - "Router state", HFILL }}, + { "Router state", "dec_dna.ctl.router_state", + FT_STRING, BASE_NONE, NULL, 0x80, + "Router state", HFILL }}, { &hf_dec_conn_contents, - { "Session connect data", "dec_dna.sess.conn", - FT_NONE, BASE_NONE, NULL, 0x0, - "Session connect data", HFILL }}, + { "Session connect data", "dec_dna.sess.conn", + FT_NONE, BASE_NONE, NULL, 0x0, + "Session connect data", HFILL }}, { &hf_dec_rt_router_prio, - { "Router priority", "dec_dna.ctl.router_prio", - FT_UINT8, BASE_HEX, NULL, 0x7f, - "Router priority", HFILL }}, + { "Router priority", "dec_dna.ctl.router_prio", + FT_UINT8, BASE_HEX, NULL, 0x7f, + "Router priority", HFILL }}, { &hf_dec_sess_grp_code, - { "Session Group code", "dec_dna.sess.grp_code", - FT_UINT16, BASE_HEX, NULL, 0x0, - "Session group code", HFILL }}, + { "Session Group code", "dec_dna.sess.grp_code", + FT_UINT16, BASE_HEX, NULL, 0x0, + "Session group code", HFILL }}, { &hf_dec_sess_usr_code, - { "Session User code", "dec_dna.sess.usr_code", - FT_UINT16, BASE_HEX, NULL, 0x0, - "Session User code", HFILL }}, + { "Session User code", "dec_dna.sess.usr_code", + FT_UINT16, BASE_HEX, NULL, 0x0, + "Session User code", HFILL }}, { &hf_dec_sess_dst_name, - { "SessionDestination end user", "dec_dna.sess.dst_name", - FT_STRING, BASE_NONE, NULL, 0x0, - "Session Destination end user", HFILL }}, + { "Session Destination end user", "dec_dna.sess.dst_name", + FT_STRING, BASE_NONE, NULL, 0x0, + "Session Destination end user", HFILL }}, { &hf_dec_sess_src_name, - { "Session Source end user", "dec_dna.sess.src_name", - FT_STRING, BASE_NONE, NULL, 0x0, - "Session Source end user", HFILL }}, + { "Session Source end user", "dec_dna.sess.src_name", + FT_STRING, BASE_NONE, NULL, 0x0, + "Session Source end user", HFILL }}, { &hf_dec_sess_obj_type, - { "Session Object type", "dec_dna.sess.obj_type", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Session object type", HFILL }}, + { "Session Object type", "dec_dna.sess.obj_type", + FT_UINT8, BASE_HEX, NULL, 0x0, + "Session object type", HFILL }}, { &hf_dec_sess_menu_ver, - { "Session Menu version", "dec_dna.sess.menu_ver", - FT_STRING, BASE_NONE, NULL, 0x0, - "Session menu version", HFILL }}, + { "Session Menu version", "dec_dna.sess.menu_ver", + FT_STRING, BASE_NONE, NULL, 0x0, + "Session menu version", HFILL }}, { &hf_dec_sess_rqstr_id, - { "Session Requestor ID", "dec_dna.sess.rqstr_id", - FT_STRING, BASE_NONE, NULL, 0x0, - "Session requestor ID", HFILL }}, + { "Session Requestor ID", "dec_dna.sess.rqstr_id", + FT_STRING, BASE_NONE, NULL, 0x0, + "Session requestor ID", HFILL }}, }; @@ -1554,13 +1594,14 @@ &ett_dec_rt_nsp_msg, &ett_dec_rt_info_flags, &ett_dec_rt_list, + &ett_dec_rt_rlist, &ett_dec_rt_state, &ett_dec_flow_control, &ett_dec_sess_contents, }; proto_dec_rt = proto_register_protocol("DEC DNA Routing Protocol", - "DEC_DNA", "dec_dna"); + "DEC_DNA", "dec_dna"); proto_register_field_array(proto_dec_rt, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } @@ -1571,7 +1612,7 @@ dissector_handle_t dec_rt_handle; dec_rt_handle = create_dissector_handle(dissect_dec_rt, - proto_dec_rt); + proto_dec_rt); dissector_add("ethertype", ETHERTYPE_DNA_RT, dec_rt_handle); dissector_add("chdlctype", ETHERTYPE_DNA_RT, dec_rt_handle); dissector_add("ppp.protocol", PPP_DEC4, dec_rt_handle);
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