/* packet-linx.c * Routines for LINX packet dissection * * Copyright 2006, Martin Peylo * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ /* The used document is: * ENEA Link Protocol Specification available at * http://linx.sourceforge.net * * Fits currently to * Enea LINX for Linux * Version: 2.5.0, May 16, 2011 * * Added support for LINX ETHCM version 3 and LINX RLNH version 2. * Mattias Wallin, linx@enea.com, September 23, 2007 * * Added support for LINX TCP CM. * Dejan Bucar, linx@enea.com, June 21, 2011 * * Added support for LINX ETHCM Multicore header. * Dejan Bucar, linx@enea.com, June 21, 2011 */ #include "config.h" #include #include #include void proto_register_linx(void); void proto_reg_handoff_linx(void); void proto_register_linx_tcp(void); void proto_reg_handoff_linx_tcp(void); static dissector_handle_t linx_handle; static int proto_linx; static int proto_linx_tcp; /* ALL */ static int hf_linx_nexthdr; /* MULTICORE */ static int hf_linx_multicore_scoreid; static int hf_linx_multicore_dcoreid; static int hf_linx_multicore_reserved; static int hf_linx_multicore_reserved1; /* MAIN */ static int hf_linx_main_version; static int hf_linx_main_reserved; static int hf_linx_main_connection; static int hf_linx_main_bundle; static int hf_linx_main_pkg_size; /* UDATA */ static int hf_linx_udata_reserved; static int hf_linx_udata_morefrags; static int hf_linx_udata_fragno; static int hf_linx_udata_signo; static int hf_linx_udata_dstaddr16; static int hf_linx_udata_dstaddr32; static int hf_linx_udata_srcaddr16; static int hf_linx_udata_srcaddr32; static int hf_linx_udata_payload; /* ACK */ static int hf_linx_ack_reserved; static int hf_linx_ack_request; static int hf_linx_ack_ackno; static int hf_linx_ack_seqno; /* CONN */ static int hf_linx_conn_cmd; static int hf_linx_conn_size; static int hf_linx_conn_reserved; static int hf_linx_conn_srcmac; static int hf_linx_conn_dstmac; static int hf_linx_conn_winsize; static int hf_linx_conn_publcid; static int hf_linx_conn_feat_neg_str; /* FRAG */ static int hf_linx_frag_reserved; static int hf_linx_frag_morefrags; static int hf_linx_frag_fragno; /* NACK */ static int hf_linx_nack_reserv1; static int hf_linx_nack_reserv2; static int hf_linx_nack_count; static int hf_linx_nack_seqno; /* RLNH */ static int hf_linx_rlnh_msg_type32; static int hf_linx_rlnh_msg_type8; /* static int hf_linx_rlnh_linkaddr; */ static int hf_linx_rlnh_src_linkaddr; static int hf_linx_rlnh_version; static int hf_linx_rlnh_status; static int hf_linx_rlnh_name; static int hf_linx_rlnh_peer_linkaddr; static int hf_linx_rlnh_feat_neg_str; static int hf_linx_rlnh_msg_reserved; /* TCP CM */ /* static int hf_linx_tcp_reserved; */ static int hf_linx_tcp_oob; static int hf_linx_tcp_version; static int hf_linx_tcp_type; static int hf_linx_tcp_src; static int hf_linx_tcp_dst; static int hf_linx_tcp_size; static int hf_linx_tcp_rlnh_msg_type32; static int hf_linx_tcp_rlnh_msg_type8; /* static int hf_linx_tcp_rlnh_linkaddr; */ static int hf_linx_tcp_rlnh_src_linkaddr; static int hf_linx_tcp_rlnh_version; static int hf_linx_tcp_rlnh_status; static int hf_linx_tcp_rlnh_name; static int hf_linx_tcp_rlnh_peer_linkaddr; static int hf_linx_tcp_rlnh_feat_neg_str; static int hf_linx_tcp_rlnh_msg_reserved; static int hf_linx_tcp_payload; static int rlnh_version; static int ett_linx; static int ett_linx_multicore; static int ett_linx_main; static int ett_linx_error; static int ett_linx_udata; static int ett_linx_ack; static int ett_linx_tcp; static expert_field ei_linx_version; static expert_field ei_linx_rlnh_msg; static expert_field ei_linx_header; static expert_field ei_linx_tcp_version; static expert_field ei_linx_tcp_rlnh_msg; /* Definition and Names */ #define ETHCM_MAIN 0x0 #define ETHCM_CONN 0x1 #define ETHCM_UDATA 0x2 #define ETHCM_FRAG 0x3 #define ETHCM_ACK 0x4 #define ETHCM_NACK 0x5 #define ETHCM_NONE 0xf static const value_string linx_short_header_names[]={ { ETHCM_MAIN, "MAIN"}, { ETHCM_CONN, "CONN"}, { ETHCM_UDATA, "UDATA"}, { ETHCM_FRAG, "FRAG"}, { ETHCM_ACK, "ACK"}, { ETHCM_NACK, "NACK"}, { ETHCM_NONE, "NONE"}, { 0, NULL} }; static const value_string linx_long_header_names[] = { { ETHCM_MAIN, "Main"}, { ETHCM_CONN, "Connection"}, { ETHCM_UDATA, "Udata"}, { ETHCM_FRAG, "Fragmentation"}, { ETHCM_ACK, "Ack"}, { ETHCM_NACK, "Nack"}, { ETHCM_NONE, "None"}, { 0, NULL} }; #define TCP_CM_CONN 0x43 #define TCP_CM_UDATA 0x55 #define TCP_CM_PING 0x50 #define TCP_CM_PONG 0x51 static const value_string linx_short_tcp_names[] = { {TCP_CM_CONN, "conn"}, {TCP_CM_UDATA, "udata"}, {TCP_CM_PING, "ping"}, {TCP_CM_PONG, "pong"}, {0, NULL} }; static const value_string linx_long_tcp_names[] = { {TCP_CM_CONN, "Connection msg"}, {TCP_CM_UDATA, "User data"}, {TCP_CM_PING, "Ping msg"}, {TCP_CM_PONG, "Pong msg"}, {0, NULL} }; /* RLNH version 1 */ #define RLNH_LINK_ADDR 0 #define RLNH_QUERY_NAME 1 #define RLNH_PUBLISH 2 #define RLNH_UNPUBLISH 3 #define RLNH_UNPUBLISH_ACK 4 #define RLNH_INIT 5 #define RLNH_INIT_REPLY 6 #define RLNH_PUBLISH_PEER 7 static const value_string linx_short_rlnh_names[]={ { RLNH_LINK_ADDR, "link_addr"}, { RLNH_QUERY_NAME, "query_name"}, { RLNH_PUBLISH, "publish"}, { RLNH_UNPUBLISH, "unpublish"}, { RLNH_UNPUBLISH_ACK, "unpublish_ack"}, { RLNH_INIT, "init"}, { RLNH_INIT_REPLY, "init_reply"}, { RLNH_PUBLISH_PEER, "publish_peer"}, { 0, NULL} }; static const value_string linx_long_rlnh_names[]={ { RLNH_LINK_ADDR, "Link Address"}, { RLNH_QUERY_NAME, "Query Name"}, { RLNH_PUBLISH, "Publish"}, { RLNH_UNPUBLISH, "Unpublish"}, { RLNH_UNPUBLISH_ACK, "Unpublish Ack"}, { RLNH_INIT, "Init"}, { RLNH_INIT_REPLY, "Init Reply"}, { RLNH_PUBLISH_PEER, "Publish Peer"}, { 0, NULL} }; static const value_string linx_rlnh_reply[] = { { 0, "Version supported"}, { 1, "Version NOT supported"}, { 0, NULL} }; static const value_string linx_nofragment[] = { { 0x7fff, "No Fragment"}, { 0, NULL} }; static const value_string linx_coreid[]= { {0xff, "None"}, {0, NULL} }; #define CONN_RESET 1 #define CONN_CONNECT 2 #define CONN_CONNECT_ACK 3 #define CONN_ACK 4 static const value_string linx_conn_cmd[] = { { CONN_RESET, "Reset"}, { CONN_CONNECT, "Connect"}, { CONN_CONNECT_ACK, "Connect_Ack"}, { CONN_ACK, "Ack"}, { 0, NULL} }; static int dissect_linx(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { uint32_t dword; int offset = 0; int nexthdr; int thishdr; int size; int pkgsize; int payloadsize; int version; int conntype; proto_tree *multicore_header_tree; proto_tree *main_header_tree; proto_tree *conn_header_tree; proto_tree *ack_header_tree; proto_tree *udata_header_tree; proto_tree *nack_header_tree; proto_tree *frag_header_tree; proto_tree *rlnh_header_tree; /* Show name in protocol column */ col_set_str(pinfo->cinfo, COL_PROTOCOL, "LINX"); /* Clear out stuff in the info column */ col_clear(pinfo->cinfo, COL_INFO); { /* Work out the details */ proto_item *ti = NULL; proto_tree *linx_tree = NULL; proto_item *ver_item, *msg_item; ti = proto_tree_add_item(tree, proto_linx, tvb, 0, -1, ENC_NA); linx_tree = proto_item_add_subtree(ti, ett_linx); dword = tvb_get_ntohl(tvb, offset); nexthdr = (dword >> 28) & 0xf; /* check if we have multicore header*/ if (nexthdr == ETHCM_MAIN) { multicore_header_tree = proto_tree_add_subtree(linx_tree, tvb, 0, 4, ett_linx_multicore, NULL, "Multicore Header"); /* Multicore header */ /* 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | R | Dest Coreid | Source Coreid | R | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ proto_tree_add_item(multicore_header_tree, hf_linx_nexthdr, tvb, 0, 4, ENC_BIG_ENDIAN); proto_tree_add_item(multicore_header_tree, hf_linx_multicore_reserved, tvb, 0, 4, ENC_BIG_ENDIAN); proto_tree_add_item(multicore_header_tree, hf_linx_multicore_dcoreid, tvb, 0, 4, ENC_BIG_ENDIAN); proto_tree_add_item(multicore_header_tree, hf_linx_multicore_scoreid, tvb, 0, 4, ENC_BIG_ENDIAN); proto_tree_add_item(multicore_header_tree, hf_linx_multicore_reserved1, tvb, 0, 4, ENC_BIG_ENDIAN); offset += 4; /* read main header*/ dword = tvb_get_ntohl(tvb, offset); } version = (dword >> 25) & 0x7; nexthdr = (dword >> 28) & 0xf; pkgsize = dword & 0x3fff; /* Main header */ main_header_tree = proto_tree_add_subtree(linx_tree, tvb, offset, 4, ett_linx_main, NULL, "Main Header"); /* 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | Ver | R | Connection |R| Packet size | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ proto_tree_add_item(main_header_tree, hf_linx_nexthdr , tvb, offset, 4, ENC_BIG_ENDIAN); ver_item = proto_tree_add_item(main_header_tree, hf_linx_main_version , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(main_header_tree, hf_linx_main_reserved , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(main_header_tree, hf_linx_main_connection, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(main_header_tree, hf_linx_main_bundle , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(main_header_tree, hf_linx_main_pkg_size , tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* Supports version 2 and 3 so far */ if (version < 2 || version > 3) { expert_add_info(pinfo, ver_item, &ei_linx_version); } while (nexthdr != ETHCM_NONE) { dword = tvb_get_ntohl(tvb, offset); thishdr = nexthdr; nexthdr = (dword >>28) & 0xf; conntype = (dword >>24) & 0xf; /* Write non trivial header name to info column */ if ((thishdr != ETHCM_NONE) && (thishdr != ETHCM_MAIN)) { col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_const(thishdr, linx_short_header_names, "unknown")); if(thishdr == ETHCM_CONN) col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_const(conntype, linx_conn_cmd, "unknown")); } switch (thishdr) { case ETHCM_CONN: /* Connect header */ /* 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | Type |Size |Winsize| Reserved |Publish conn id| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ : : : dst hw addr followed by src hw addr : : : +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ : : : Feature negotiation string (null terminated) : : : +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ size = (dword >>21) & 0x7; conn_header_tree = proto_tree_add_subtree(linx_tree, tvb, offset, (4+2*size), ett_linx_main, NULL, "Connection Header"); proto_tree_add_item(conn_header_tree, hf_linx_nexthdr , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(conn_header_tree, hf_linx_conn_cmd , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(conn_header_tree, hf_linx_conn_size , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(conn_header_tree, hf_linx_conn_winsize , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(conn_header_tree, hf_linx_conn_reserved, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(conn_header_tree, hf_linx_conn_publcid , tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* MEDIA ADDRESS */ if (size == 6) { /* Most likely ETHERNET */ proto_tree_add_item(conn_header_tree, hf_linx_conn_dstmac, tvb, offset, 6, ENC_NA); proto_tree_add_item(conn_header_tree, hf_linx_conn_srcmac, tvb, offset + 6, 6, ENC_NA); } offset += (2*size); /* Feature Negotiation String */ if(version > 2) { proto_tree_add_item(conn_header_tree, hf_linx_conn_feat_neg_str, tvb, offset, -1, ENC_ASCII); offset += tvb_strnlen(tvb, offset, -1); } break; case ETHCM_NACK: /* Nack header */ /* 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | Res | Count | Res | Seqno | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ /* how many sequence numbers will be there? */ /* this is not implemented due to a lack of documentation with */ /* longer sequence numbers. */ /* guess there will be padding if the Seqno doesn't reach */ /* a 32bit boundary */ nack_header_tree = proto_tree_add_subtree(linx_tree, tvb, offset, 4, ett_linx_main, NULL, "NACK Header"); proto_tree_add_item(nack_header_tree, hf_linx_nexthdr , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(nack_header_tree, hf_linx_nack_reserv1, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(nack_header_tree, hf_linx_nack_count , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(nack_header_tree, hf_linx_nack_reserv2, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(nack_header_tree, hf_linx_nack_seqno , tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; break; case ETHCM_UDATA: /* User data / fragment header => Version 3 */ /* 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | Reserved |M| Frag no | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Destination | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Source | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * User data / fragment header => Version 2 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | Reserved |M| Frag no | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Dst | Src | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - fragments (not first fragment) 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | Reserved |M| Frag no | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ udata_header_tree = proto_tree_add_subtree(linx_tree, tvb, offset, 12, ett_linx_main, NULL, "Udata Header"); proto_tree_add_item(udata_header_tree, hf_linx_nexthdr, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(udata_header_tree, hf_linx_udata_reserved , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(udata_header_tree, hf_linx_udata_morefrags, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(udata_header_tree, hf_linx_udata_fragno , tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* signo removed in version 3 and linkaddresses extended to 32 bits */ if(version == 2) { proto_tree_add_item(udata_header_tree, hf_linx_udata_signo , tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(udata_header_tree, hf_linx_udata_dstaddr16, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(udata_header_tree, hf_linx_udata_srcaddr16, tvb, offset, 4, ENC_BIG_ENDIAN); dword = tvb_get_ntohl(tvb, offset); } else { proto_tree_add_item(udata_header_tree, hf_linx_udata_dstaddr32, tvb, offset, 4, ENC_BIG_ENDIAN); dword = tvb_get_ntohl(tvb, offset); offset += 4; proto_tree_add_item(udata_header_tree, hf_linx_udata_srcaddr32, tvb, offset, 4, ENC_BIG_ENDIAN); if(dword == 0 && tvb_get_ntohl(tvb, offset) == 0) { dword = 0; } else { dword = 1; } } offset += 4; if (dword == 0) { /* (dstaddr == srcaddr == 0) -> RLNH Protocol Message */ dword = tvb_get_ntohl(tvb, offset); /* Write to info column */ col_append_fstr(pinfo->cinfo, COL_INFO, "rlnh:%s ", val_to_str_const(dword, linx_short_rlnh_names, "unknown")); /* create new paragraph for RLNH */ rlnh_header_tree = proto_tree_add_subtree(linx_tree, tvb, offset, 4, ett_linx_main, NULL, "RLNH"); if(version == 1) { msg_item = proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_msg_type32, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } else { /* in version 2 of the rlnh protocol the length of the message type is restricted to 8 bits */ proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_msg_reserved, tvb, offset, 4, ENC_BIG_ENDIAN); msg_item = proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_msg_type8, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } switch (dword) { case RLNH_LINK_ADDR: /* XXX what is this? */ break; case RLNH_QUERY_NAME: proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_name, tvb, offset, -1, ENC_ASCII); offset += tvb_strnlen(tvb, offset, -1); break; case RLNH_PUBLISH: proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_name, tvb, offset, -1, ENC_ASCII); offset += tvb_strnlen(tvb, offset, -1); break; case RLNH_UNPUBLISH: proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; break; case RLNH_UNPUBLISH_ACK: proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; break; case RLNH_INIT: proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_version, tvb, offset, 4, ENC_BIG_ENDIAN); /* This is not working if nodes are at different versions. Only the latest value will be saved in rlnh_version */ rlnh_version = tvb_get_ntohl(tvb, offset); offset += 4; break; case RLNH_INIT_REPLY: proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_status, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; if(rlnh_version > 1) { proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_feat_neg_str, tvb, offset, -1, ENC_ASCII); offset += tvb_strnlen(tvb, offset, -1); } break; case RLNH_PUBLISH_PEER: proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(rlnh_header_tree, hf_linx_rlnh_peer_linkaddr, tvb, offset, -1, ENC_BIG_ENDIAN); offset += tvb_strnlen(tvb, offset, -1); break; default: /* no known Message type... */ expert_add_info(pinfo, msg_item, &ei_linx_rlnh_msg); break; } } else { /* Is there payload? */ /* anything better to do with that? */ payloadsize = pkgsize-offset; if (payloadsize) { proto_tree_add_item(linx_tree, hf_linx_udata_payload, tvb, offset, payloadsize, ENC_NA); } } break; case ETHCM_ACK: /* Reliable header */ /* 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next |R| Res.| Ackno | Seqno | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ ack_header_tree = proto_tree_add_subtree(linx_tree, tvb, offset, 4, ett_linx_main, NULL, "Ack Header"); proto_tree_add_item(ack_header_tree, hf_linx_nexthdr , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ack_header_tree, hf_linx_ack_request , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ack_header_tree, hf_linx_ack_reserved, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ack_header_tree, hf_linx_ack_ackno , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ack_header_tree, hf_linx_ack_seqno , tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; break; case ETHCM_FRAG: /* - fragments (not first fragment) 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Next | Reserved |M| Frag no | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ frag_header_tree = proto_tree_add_subtree(linx_tree, tvb, offset, 4, ett_linx_main, NULL, "Fragmentation Header"); proto_tree_add_item(frag_header_tree, hf_linx_nexthdr , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(frag_header_tree, hf_linx_frag_reserved , tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(frag_header_tree, hf_linx_frag_morefrags, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(frag_header_tree, hf_linx_frag_fragno , tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; break; default: proto_tree_add_expert_format(linx_tree, pinfo, &ei_linx_header, tvb, offset, 4, "ERROR: Header \"%u\" not recognized", thishdr); nexthdr = ETHCM_NONE; /* avoid endless loop with faulty packages */ break; } } } return tvb_captured_length(tvb); } /* Protocol Initialisation */ void proto_register_linx(void) { /* Registering Data Structures */ static hf_register_info hf[] = { { &hf_linx_nexthdr, { "Next Header", "linx.nexthdr", FT_UINT32, BASE_DEC, VALS(linx_long_header_names), 0xf0000000, NULL, HFILL }, }, { &hf_linx_multicore_scoreid, /* in ETHCM_MULTICORE */ { "Source coreid", "linx.scoreid", FT_UINT32, BASE_DEC, VALS(linx_coreid), 0x0000ff00, "Multicore source core id", HFILL }, }, { &hf_linx_multicore_dcoreid, /* in ETHCM_MULTICORE */ { "Destination coreid", "linx.dcoreid", FT_UINT32, BASE_DEC, VALS(linx_coreid), 0x00ff0000, "Multicore destination core id", HFILL}, }, { &hf_linx_multicore_reserved, /* in ETHCM_MULTICORE */ { "Reserved", "linx.reserved8", FT_UINT32, BASE_DEC, NULL, 0x0f000000, "Multicore Hdr Reserved", HFILL}, }, { &hf_linx_multicore_reserved1, /* in ETHCM_MULTICORE */ { "Reserved", "linx.reserved9", FT_UINT32, BASE_DEC, NULL, 0x000000ff, "Multicore Hdr Reserved", HFILL}, }, { &hf_linx_main_version, /* in ETHCM_MAIN */ { "Version", "linx.version", FT_UINT32, BASE_DEC, NULL, 0x0e000000, "LINX Version", HFILL }, }, { &hf_linx_main_reserved, /* in ETHCM_MAIN */ { "Reserved", "linx.reserved1", FT_UINT32, BASE_DEC, NULL, 0x01800000, "Main Hdr Reserved", HFILL }, }, { &hf_linx_main_connection, /* in ETHCM_MAIN */ { "Connection", "linx.connection", FT_UINT32, BASE_DEC, NULL, 0x007f8000, NULL, HFILL }, }, { &hf_linx_main_bundle, /* in ETHCM_MAIN */ { "Bundle", "linx.bundle", FT_BOOLEAN, 32, TFS(&tfs_yes_no), 0x00004000, NULL, HFILL }, }, { &hf_linx_main_pkg_size, /* in ETHCM_MAIN */ { "Package Size", "linx.pcksize", FT_UINT32, BASE_DEC, NULL, 0x00003fff, NULL, HFILL }, }, { &hf_linx_udata_reserved, /* in ETHCM_UDATA */ { "Reserved", "linx.reserved5", FT_UINT32, BASE_DEC, NULL, 0x0fff0000, "Udata Hdr Reserved", HFILL }, }, { &hf_linx_udata_morefrags, /* in ETHCM_UDATA */ { "More Fragments", "linx.morefra", FT_BOOLEAN, 32, TFS(&tfs_yes_no), 0x00008000, "More fragments follow", HFILL }, }, { &hf_linx_udata_fragno, /* in ETHCM_UDATA */ { "Fragment Number", "linx.fragno", FT_UINT32, BASE_DEC, VALS(linx_nofragment), 0x00007fff, NULL, HFILL }, }, { &hf_linx_udata_signo, /* in ETHCM_UDATA */ { "Signal Number", "linx.signo", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_udata_dstaddr16, /* in ETHCM_UDATA - protocol version 2 */ { "Receiver Address", "linx.dstaddr", FT_UINT32, BASE_DEC, NULL, 0xffff0000, NULL, HFILL }, }, { &hf_linx_udata_dstaddr32, /* in ETHCM_UDATA - protocol version 3 */ { "Receiver Address", "linx.dstaddr32", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_udata_srcaddr16, /* in ETHCM_UDATA - protocol version 2 */ { "Sender Address", "linx.srcaddr", FT_UINT32, BASE_DEC, NULL, 0x0000ffff, NULL, HFILL }, }, { &hf_linx_udata_srcaddr32, /* in ETHCM_UDATA - protocol version 3 */ { "Sender Address", "linx.srcaddr32", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_udata_payload, /* in ETHCM_UDATA */ { "Payload", "linx.payload", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_ack_request, /* in ETHCM_ACK */ { "ACK-request", "linx.ackreq", FT_BOOLEAN, 32, TFS(&tfs_yes_no), 0x08000000, NULL, HFILL }, }, { &hf_linx_ack_reserved, /* in ETHCM_ACK */ { "Reserved", "linx.reserved7", FT_UINT32, BASE_DEC, NULL, 0x07000000, "ACK Hdr Reserved", HFILL }, }, { &hf_linx_ack_ackno, /* in ETHCM_ACK */ { "ACK Number", "linx.ackno", FT_UINT32, BASE_DEC, NULL, 0x00fff000, NULL, HFILL }, }, { &hf_linx_ack_seqno, /* in ETHCM_ACK */ { "Sequence Number", "linx.seqno", FT_UINT32, BASE_DEC, NULL, 0x00000fff, NULL, HFILL }, }, { &hf_linx_conn_cmd, /* in ETHCM_CONN */ { "Command", "linx.cmd", FT_UINT32, BASE_DEC, VALS(linx_conn_cmd), 0x0f000000, NULL, HFILL }, }, { &hf_linx_conn_size, /* in ETHCM_CONN */ { "Size", "linx.size", FT_UINT32, BASE_DEC, NULL, 0x00e00000, NULL, HFILL }, }, { &hf_linx_conn_winsize, /* in ETHCM_CONN */ { "WinSize", "linx.winsize", FT_UINT32, BASE_DEC, NULL, 0x001e0000, "Window Size", HFILL }, }, { &hf_linx_conn_reserved, /* in ETHCM_CONN */ { "Reserved", "linx.reserved3", FT_UINT32, BASE_DEC, NULL, 0x0001ff00, "Conn Hdr Reserved", HFILL }, }, { &hf_linx_conn_publcid, /* in ETHCM_CONN */ { "Publish Conn ID", "linx.publcid", FT_UINT32, BASE_DEC, NULL, 0x000000ff, NULL, HFILL }, }, { &hf_linx_conn_srcmac, /* in ETHCM_CONN */ { "Source", "linx.srcmaddr_ether", FT_ETHER, BASE_NONE, NULL, 0x0, "Source Media Address (ethernet)", HFILL }, }, { &hf_linx_conn_dstmac, /* in ETHCM_CONN */ { "Destination", "linx.destmaddr_ether", FT_ETHER, BASE_NONE, NULL, 0x0, "Destination Media Address (ethernet)", HFILL }, }, { &hf_linx_conn_feat_neg_str, /* in ETHCM_CONN */ { "Feature Negotiation String", "linx.feat_neg_str", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_frag_reserved, /* in ETHCM_FRAG */ { "Reserved", "linx.reserved6", FT_UINT32, BASE_DEC, NULL, 0x0fff0000, "Frag Hdr Reserved", HFILL }, }, { &hf_linx_frag_morefrags, /* in ETHCM_FRAG */ { "More Fragments", "linx.morefr2", FT_BOOLEAN, 32, TFS(&tfs_yes_no), 0x00008000, NULL, HFILL }, }, { &hf_linx_frag_fragno, /* in ETHCM_FRAG */ { "Fragment Number", "linx.fragno2", FT_UINT32, BASE_DEC, NULL, 0x00007fff, NULL, HFILL }, }, { &hf_linx_nack_reserv1, /* in ETHCM_NACK */ { "Reserved", "linx.nack_reserv", FT_UINT32, BASE_DEC, NULL, 0x0f000000, "Nack Hdr Reserved", HFILL }, }, { &hf_linx_nack_count, /* in ETHCM_NACK */ { "Count", "linx.nack_count", FT_UINT32, BASE_DEC, NULL, 0x00ff0000, NULL, HFILL }, }, { &hf_linx_nack_reserv2, /* in ETHCM_NACK */ { "Reserved", "linx.nack_reserv", FT_UINT32, BASE_DEC, NULL, 0x0000f000, "Nack Hdr Reserved", HFILL }, }, { &hf_linx_nack_seqno, /* in ETHCM_NACK */ { "Sequence Number", "linx.nack_seqno", FT_UINT32, BASE_DEC, NULL, 0x00000fff, NULL, HFILL }, }, /* RLNH */ { &hf_linx_rlnh_msg_type32, /* in RLNH */ { "RLNH msg type", "linx.rlnh_msg_type", FT_UINT32, BASE_DEC, VALS(linx_long_rlnh_names), 0x0, "RLNH message type", HFILL }, }, { &hf_linx_rlnh_msg_type8, /* in RLNH */ { "RLNH msg type", "linx.rlnh_msg_type8", FT_UINT32, BASE_DEC, VALS(linx_long_rlnh_names), 0x000000ff, "RLNH message type", HFILL }, }, { &hf_linx_rlnh_msg_reserved, /* in RLNH */ { "RLNH msg reserved", "linx.rlnh_msg_reserved", FT_UINT32, BASE_DEC, NULL, 0xffffff00, "RLNH message reserved", HFILL }, }, #if 0 { &hf_linx_rlnh_linkaddr, /* in RLNH */ { "RLNH linkaddr", "linx.rlnh_linkaddr", FT_UINT32, BASE_DEC, NULL, 0xffffffff, "RLNH linkaddress", HFILL }, }, #endif { &hf_linx_rlnh_src_linkaddr, /* in RLNH */ { "RLNH src linkaddr", "linx.rlnh_src_linkaddr", FT_UINT32, BASE_DEC, NULL, 0x0, "RLNH source linkaddress", HFILL }, }, { &hf_linx_rlnh_peer_linkaddr, /* in RLNH */ { "RLNH peer linkaddr", "linx.rlnh_peer_linkaddr", FT_UINT32, BASE_DEC, NULL, 0x0, "RLNH peer linkaddress", HFILL }, }, { &hf_linx_rlnh_version, /* in RLNH */ { "RLNH version", "linx.rlnh_version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_rlnh_status, /* in RLNH */ { "RLNH reply", "linx.rlnh_status", FT_UINT32, BASE_DEC, VALS(linx_rlnh_reply), 0x0, NULL, HFILL }, }, { &hf_linx_rlnh_name, /* in RLNH */ { "RLNH name", "linx.rlnh_name", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_rlnh_feat_neg_str, /* in RLNH */ { "RLNH Feature Negotiation String", "linx.rlnh_feat_neg_str", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, } }; /* Setup protocol subtree array */ static int *ett[] = { &ett_linx, &ett_linx_multicore, &ett_linx_main, &ett_linx_error, &ett_linx_udata, &ett_linx_ack }; static ei_register_info ei[] = { { &ei_linx_version, { "linx.version.unknown", PI_PROTOCOL, PI_WARN, "Version not yet supported and might be dissected incorrectly!", EXPFILL }}, { &ei_linx_rlnh_msg, { "linx.rlnh_msg.unknown", PI_PROTOCOL, PI_WARN, "Message type not recognized", EXPFILL }}, { &ei_linx_header, { "linx.header_not_recognized", PI_PROTOCOL, PI_WARN, "Header not recognized", EXPFILL }}, }; expert_module_t* expert_linx; proto_linx = proto_register_protocol ( "ENEA LINX", /* name */ "LINX", /* short name */ "linx" /* abbrev */ ); /* Protocol Registering data structures. */ proto_register_field_array(proto_linx, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_linx = expert_register_protocol(proto_linx); expert_register_field_array(expert_linx, ei, array_length(ei)); /* Register the dissector */ linx_handle = register_dissector("linx", dissect_linx, proto_linx); } /* Protocol Handoff */ void proto_reg_handoff_linx(void) { dissector_add_uint("ethertype", ETHERTYPE_LINX, linx_handle); } /************ TCP CM **************/ static int dissect_linx_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { uint32_t dword; int offset = 0; proto_item *ti, *ver_item, *msg_item; proto_tree *linx_tcp_tree; proto_tree *tcp_header_tree; proto_tree *rlnh_header_tree; int payloadsize; int version; int size; int type; /* Show name in protocol column */ col_set_str(pinfo->cinfo, COL_PROTOCOL, "LINX/TCP"); /* Clear out stuff in the info column */ col_clear(pinfo->cinfo, COL_INFO); dword = tvb_get_ntohl(tvb, 0); version = (dword >> 16) & 0xFF; type = (dword >> 24) & 0xFF; /* size of linx tcp cm header */ size = 16; if (type == 0x55) { dword = tvb_get_ntohl(tvb, 12); size += (dword & 0xFFFFFFFF); } col_append_fstr(pinfo->cinfo, COL_INFO, "tcpcm:%s ", val_to_str_const(type, linx_short_tcp_names, "unknown")); ti = proto_tree_add_item(tree, proto_linx_tcp, tvb, 0, -1, ENC_NA); linx_tcp_tree = proto_item_add_subtree(ti, ett_linx_tcp); tcp_header_tree = proto_tree_add_subtree(linx_tcp_tree, tvb, 0, 16, ett_linx_tcp, NULL, "TCP CM Header"); proto_tree_add_item(tcp_header_tree, hf_linx_tcp_type, tvb, 0, 4, ENC_BIG_ENDIAN); ver_item = proto_tree_add_item(tcp_header_tree, hf_linx_tcp_version, tvb, 0, 4, ENC_BIG_ENDIAN); proto_tree_add_item(tcp_header_tree, hf_linx_tcp_oob, tvb, 0, 4, ENC_BIG_ENDIAN); proto_tree_add_item(tcp_header_tree, hf_linx_tcp_src, tvb, 4, 4, ENC_BIG_ENDIAN); proto_tree_add_item(tcp_header_tree, hf_linx_tcp_dst, tvb, 8, 4, ENC_BIG_ENDIAN); proto_tree_add_item(tcp_header_tree, hf_linx_tcp_size, tvb, 12, 4, ENC_BIG_ENDIAN); if (version != 3) { expert_add_info(pinfo, ver_item, &ei_linx_tcp_version); } offset += 16; if (type == 0x55) { /* UDATA */ dword = tvb_get_ntohl(tvb, 8); if (dword == 0) { /* RLNH Message*/ dword = tvb_get_ntohl(tvb, offset); /* Write to info column */ col_append_fstr(pinfo->cinfo, COL_INFO, "rlnh:%s ", val_to_str_const(dword, linx_short_rlnh_names, "unknown")); /* create new paragraph for RLNH */ rlnh_header_tree = proto_tree_add_subtree(linx_tcp_tree, tvb, offset, 4, ett_linx_tcp, NULL, "RLNH"); if(version == 1) { msg_item = proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_msg_type32, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } else { /* * In version 2 of the rlnh protocol the length of the message type is * restricted to 8 bits. */ proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_msg_reserved, tvb, offset, 4, ENC_BIG_ENDIAN); msg_item = proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_msg_type8, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } switch (dword) { case RLNH_LINK_ADDR: break; case RLNH_QUERY_NAME: proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_name, tvb, offset, -1, ENC_ASCII); /*offset += tvb_strnlen(tvb, offset, -1);*/ break; case RLNH_PUBLISH: proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_name, tvb, offset, -1, ENC_ASCII); /*offset += tvb_strnlen(tvb, offset, -1);*/ break; case RLNH_UNPUBLISH: proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); /*offset += 4;*/ break; case RLNH_UNPUBLISH_ACK: proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); /*offset += 4;*/ break; case RLNH_INIT: proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_version, tvb, offset, 4, ENC_BIG_ENDIAN); rlnh_version = tvb_get_ntohl(tvb, offset); /*offset += 4;*/ break; case RLNH_INIT_REPLY: proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_status, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; if(rlnh_version > 1) { proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_feat_neg_str, tvb, offset, -1, ENC_ASCII); /*offset += tvb_strnlen(tvb, offset, -1);*/ } break; case RLNH_PUBLISH_PEER: proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_src_linkaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(rlnh_header_tree, hf_linx_tcp_rlnh_peer_linkaddr, tvb, offset, -1, ENC_BIG_ENDIAN); /*offset += tvb_strnlen(tvb, offset, -1);*/ break; default: /* No known Message type */ expert_add_info(pinfo, msg_item, &ei_linx_tcp_rlnh_msg); break; } } else { /* User payload */ payloadsize = size-offset; if (payloadsize) { proto_tree_add_item(linx_tcp_tree, hf_linx_tcp_payload, tvb, offset, payloadsize, ENC_NA); } } } return tvb_captured_length(tvb); } void proto_register_linx_tcp(void) { static hf_register_info hf[] = { #if 0 { &hf_linx_tcp_reserved, { "Reserved", "linxtcp.reserved", FT_UINT32, BASE_DEC, NULL, 0x00007FFF, "TCP CM reserved", HFILL }, }, #endif { &hf_linx_tcp_oob, { "Out-of-band", "linxtcp.oob", FT_UINT32, BASE_DEC, NULL, 0x00008000, "TCP CM oob", HFILL }, }, { &hf_linx_tcp_version, { "Version", "linxtcp.version", FT_UINT32, BASE_DEC, NULL, 0x00FF0000, "TCP CM version", HFILL }, }, { &hf_linx_tcp_type, { "Type", "linxtcp.type", FT_UINT32, BASE_HEX, VALS(linx_long_tcp_names), 0xFF000000, "TCP CM type", HFILL }, }, { &hf_linx_tcp_src, { "Source", "linxtcp.src", FT_UINT32, BASE_DEC, NULL, 0x0, "TCP CM source", HFILL }, }, { &hf_linx_tcp_dst, { "Destination", "linxtcp.dst", FT_UINT32, BASE_DEC, NULL, 0x0, "TCP CM destination", HFILL }, }, { &hf_linx_tcp_size, { "Size", "linxtcp.size", FT_UINT32, BASE_DEC, NULL, 0x0, "TCP CM size", HFILL }, }, /* RLNH */ { &hf_linx_tcp_rlnh_msg_type32, { "RLNH msg type", "linxtcp.rlnh_msg_type", FT_UINT32, BASE_DEC, VALS(linx_long_rlnh_names), 0x0, "RLNH message type", HFILL }, }, { &hf_linx_tcp_rlnh_msg_type8, { "RLNH msg type", "linxtcp.rlnh_msg_type8", FT_UINT32, BASE_DEC, VALS(linx_long_rlnh_names), 0x000000ff, "RLNH message type", HFILL }, }, { &hf_linx_tcp_rlnh_msg_reserved, { "RLNH msg reserved", "linxtcp.rlnh_msg_reserved", FT_UINT32, BASE_DEC, NULL, 0xffffff00, "RLNH message reserved", HFILL }, }, #if 0 { &hf_linx_tcp_rlnh_linkaddr, { "RLNH linkaddr", "linxtcp.rlnh_linkaddr", FT_UINT32, BASE_DEC, NULL, 0x0, "RLNH linkaddress", HFILL }, }, #endif { &hf_linx_tcp_rlnh_src_linkaddr, { "RLNH src linkaddr", "linxtcp.rlnh_src_linkaddr", FT_UINT32, BASE_DEC, NULL, 0x0, "RLNH source linkaddress", HFILL }, }, { &hf_linx_tcp_rlnh_peer_linkaddr, { "RLNH peer linkaddr", "linxtcp.rlnh_peer_linkaddr", FT_UINT32, BASE_DEC, NULL, 0x0, "RLNH peer linkaddress", HFILL }, }, { &hf_linx_tcp_rlnh_version, { "RLNH version", "linxtcp.rlnh_version", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_tcp_rlnh_status, { "RLNH reply", "linxtcp.rlnh_status", FT_UINT32, BASE_DEC, VALS(linx_rlnh_reply), 0x0, NULL, HFILL }, }, { &hf_linx_tcp_rlnh_name, { "RLNH name", "linxtcp.rlnh_name", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_tcp_rlnh_feat_neg_str, { "RLNH Feature Negotiation String", "linxtcp.rlnh_feat_neg_str", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }, }, { &hf_linx_tcp_payload, { "Payload", "linxtcp.payload", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }, } }; static int *ett[] = { &ett_linx_tcp, }; static ei_register_info ei[] = { { &ei_linx_tcp_version, { "linxtcp.version.unknown", PI_PROTOCOL, PI_WARN, "Version not yet supported and might be dissected incorrectly!", EXPFILL }}, { &ei_linx_tcp_rlnh_msg, { "linxtcp.rlnh_msg.unknown", PI_PROTOCOL, PI_WARN, "Message type not recognized", EXPFILL }}, }; expert_module_t* expert_linx_tcp; proto_linx_tcp = proto_register_protocol("ENEA LINX over TCP", "LINX/TCP", "linxtcp"); proto_register_field_array(proto_linx_tcp, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_linx_tcp = expert_register_protocol(proto_linx_tcp); expert_register_field_array(expert_linx_tcp, ei, array_length(ei)); } void proto_reg_handoff_linx_tcp(void) { dissector_handle_t linx_tcp_handle; linx_tcp_handle = create_dissector_handle(dissect_linx_tcp, proto_linx_tcp); dissector_add_for_decode_as_with_preference("tcp.port", linx_tcp_handle); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 8 * tab-width: 8 * indent-tabs-mode: t * End: * * vi: set shiftwidth=8 tabstop=8 noexpandtab: * :indentSize=8:tabSize=8:noTabs=false: */