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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
commit | e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch) | |
tree | 68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/dissectors/packet-egd.c | |
parent | Initial commit. (diff) | |
download | wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip |
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/dissectors/packet-egd.c')
-rw-r--r-- | epan/dissectors/packet-egd.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/epan/dissectors/packet-egd.c b/epan/dissectors/packet-egd.c new file mode 100644 index 0000000..7aed5d7 --- /dev/null +++ b/epan/dissectors/packet-egd.c @@ -0,0 +1,249 @@ +/* packet-egd.c + * Routines for Ethernet Global Data dissection + * EGD Home: www.gefanuc.com + * + * Copyright 2008 + * 29 July 2008 -- ryan wamsley + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "config.h" + +#include <epan/packet.h> + +#define EGD_PORT 18246 /* 0x4746 "GF" for GE Fanuc - Not IANA registered */ +/* The above port is used for data packets. UDP port 7937 (also not registered) + * is used for configuration commands, but this dissector doesn't support them. + */ + +#define EGD_ST_NONEW 0 +#define EGD_ST_NOERROR 1 +#define EGD_ST_CONSUMED 2 +#define EGD_ST_SNTPERR 3 +#define EGD_ST_SPECERR 4 +#define EGD_ST_REFRESHERR 6 +#define EGD_ST_REFEXDERR 7 +#define EGD_ST_IPERR 10 +#define EGD_ST_RESOURSEERR 12 +#define EGD_ST_NAMERES 16 +#define EGD_ST_ETHERR 18 +#define EGD_ST_NOSUPPORT 22 +#define EGD_ST_NORESP 26 +#define EGD_ST_CREATEERR 28 +#define EGD_ST_DELETED 30 + + +void proto_register_egd(void); +void proto_reg_handoff_egd(void); + +static dissector_handle_t egd_handle; + +/* Translate status to string */ +static const value_string egd_stat_vals[] = { + { EGD_ST_NONEW, "No new status event has occurred" }, + { EGD_ST_NOERROR, "No error currently exists" }, + { EGD_ST_CONSUMED, "No error, data consumed" }, + { EGD_ST_SNTPERR, "SNTP error" }, + { EGD_ST_SPECERR, "Specification error" }, + { EGD_ST_REFRESHERR, "Data refresh error" }, + { EGD_ST_REFEXDERR, "Data refresh period exceeded" }, + { EGD_ST_IPERR, "IP Layer not currently initialized" }, + { EGD_ST_RESOURSEERR, "Lack of resource error" }, + { EGD_ST_NAMERES, "Name Resolution in progress" }, + { EGD_ST_ETHERR, "Loss of Ethernet Interface error" }, + { EGD_ST_NOSUPPORT, "Ethernet Interface does not support EGD" }, + { EGD_ST_NORESP, "No Response from Ethernet Interface" }, + { EGD_ST_CREATEERR, "Failed to create an exchange." }, + { EGD_ST_DELETED, "Configured exchange deleted." }, + { 0, NULL } +}; + +static int proto_egd = -1; + +static int hf_egd_ver = -1; +static int hf_egd_type = -1; +static int hf_egd_rid = -1; +static int hf_egd_pid = -1; +static int hf_egd_exid = -1; +static int hf_egd_time = -1; +static int hf_egd_notime = -1; +static int hf_egd_stat = -1; +static int hf_egd_csig = -1; +static int hf_egd_resv = -1; + +static gint ett_egd = -1; +static gint ett_status_item = -1; + +static int dissect_egd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + /* EGD Data messages are PDU type 13 (0x0d) and version 1. + * All other PDU types are Control messages, which are sent to a different + * port, each have a different format, and not handled by this dissector. + */ + if (tvb_get_ntohs(tvb, 0) != 0x0d01) { + return 0; + } + + /* replace UDP with EGD in display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "EGD"); + + /* Clear out stuff in the info column */ + col_clear(pinfo->cinfo, COL_INFO); + col_add_fstr(pinfo->cinfo, COL_INFO, "Data Msg: ExchangeID=0x%08X, RequestID=%05u", + tvb_get_letohl(tvb, 8), tvb_get_letohs(tvb, 2)); + + if (tree) + { + proto_item *ti = NULL; + proto_item *notime = NULL; + proto_tree *egd_tree = NULL; + tvbuff_t *next_tvb = NULL; + gint offset, data_length; + guint32 sectime; + + offset = 0; + + ti = proto_tree_add_item(tree, proto_egd, tvb, 0, -1, ENC_NA); + egd_tree = proto_item_add_subtree(ti, ett_egd); + proto_tree_add_item(egd_tree, hf_egd_type, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + proto_tree_add_item(egd_tree, hf_egd_ver, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset++; + proto_tree_add_item(egd_tree, hf_egd_rid, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + proto_tree_add_item(egd_tree, hf_egd_pid, tvb, offset, 4, ENC_BIG_ENDIAN); + offset += 4; + proto_tree_add_item(egd_tree, hf_egd_exid, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + + /* time */ + sectime = tvb_get_letohl(tvb, offset); + if (0 == sectime) + { + notime = proto_tree_add_item(egd_tree, hf_egd_notime, tvb, offset, 8, ENC_LITTLE_ENDIAN); + proto_item_append_text(notime, "--No TimeStamp"); + } + else + { + proto_tree_add_item(egd_tree, hf_egd_time, tvb, offset, 8, ENC_LITTLE_ENDIAN); + } + offset += 8; + + proto_tree_add_item(egd_tree, hf_egd_stat, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + proto_tree_add_item(egd_tree, hf_egd_csig, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + proto_tree_add_item(egd_tree, hf_egd_resv, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + + data_length = tvb_reported_length_remaining(tvb, offset); + if (data_length > 0) + { + next_tvb = tvb_new_subset_remaining(tvb, offset); + call_data_dissector(next_tvb, pinfo, egd_tree); + } + } + return tvb_captured_length(tvb); +} + +void proto_register_egd(void) +{ + static hf_register_info hf[] = + { + { &hf_egd_ver, + { "Version", "egd.ver", + FT_UINT8, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_type, + { "Type", "egd.type", + FT_UINT8, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_rid, + { "RequestID", "egd.rid", + FT_UINT16, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_pid, + { "ProducerID", "egd.pid", + FT_IPv4, BASE_NONE, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_exid, + { "ExchangeID", "egd.exid", + FT_UINT32, BASE_HEX, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_time, + { "Timestamp", "egd.time", + FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_notime, + { "Timestamp", "egd.notime", + FT_UINT64, BASE_HEX, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_stat, + { "Status", "egd.stat", + FT_UINT32, BASE_DEC, + VALS(egd_stat_vals), 0x0, + NULL, HFILL } + }, + { &hf_egd_csig, + { "ConfigSignature", "egd.csig", + FT_UINT32, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + }, + { &hf_egd_resv, + { "Reserved", "egd.rsrv", + FT_UINT32, BASE_DEC, + NULL, 0x0, + NULL, HFILL } + } + }; + + static gint *ett[] = + { + &ett_egd, + &ett_status_item + }; + + proto_egd = proto_register_protocol ("Ethernet Global Data", "EGD", "egd"); + proto_register_field_array(proto_egd, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + egd_handle = register_dissector("egd", dissect_egd, proto_egd); +} + +void proto_reg_handoff_egd(void) +{ + dissector_add_uint_with_preference("udp.port", EGD_PORT, egd_handle); +} + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local Variables: + * c-basic-offset: 2 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * ex: set shiftwidth=2 tabstop=8 expandtab: + * :indentSize=2:tabSize=8:noTabs=true: + */ |