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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-opa-snc.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-opa-snc.c')
-rw-r--r-- | epan/dissectors/packet-opa-snc.c | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/epan/dissectors/packet-opa-snc.c b/epan/dissectors/packet-opa-snc.c new file mode 100644 index 00000000..9ca2fdb2 --- /dev/null +++ b/epan/dissectors/packet-opa-snc.c @@ -0,0 +1,418 @@ +/* packet-opa-snc.c + * Routines for Omni-Path SnC header dissection + * Copyright (c) 2016, Intel Corporation. + * + * 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> +#include <epan/expert.h> +#include <wiretap/erf_record.h> + +void proto_reg_handoff_opa_snc(void); +void proto_register_opa_snc(void); + +static const value_string vals_opa_snc_direction[] = { + { 0, "Outbound" }, + { 1, "Inbound" }, + { 2, "Internal Debugging Tool" }, + { 0, NULL } +}; +/* PBC */ +static const true_false_string tfs_opa_snc_pbc_isBypass = { + "Bypass (8B/10B/16B) Packet", + "9B Packet" +}; +static const value_string vals_opa_snc_pbc_insertHcrc[] = { + { 0x0, "KDETH Hcrc calculated assuming GRH is not present" }, + { 0x1, "KDETH Hcrc calculated assuming GRH is present" }, + { 0x2, "KDETH Hcrc is not inserted" }, + { 0x3, "Reserved" }, + { 0, NULL } +}; +/* RHF */ +static const value_string vals_opa_snc_rhf_rcvtypeerr[] = { + { 0x0, "No Error" }, + { 0x1, "OpCode Error" }, + { 0x2, "KDETH Min Length Error" }, + { 0x3, "KDETH Hcrc Error" }, + { 0x4, "KDETH Version Error" }, + { 0x5, "Context Error" }, + { 0x6, "KDETH TID Error" }, + { 0x7, "Reserved" }, + { 0, NULL } +}; +static const value_string vals_opa_snc_rhf_rcvtype[] = { + { 0, "Expected Receive" }, + { 1, "Eager Receive" }, + { 2, "IB" }, + { 3, "error" }, + { 4, "bypass" }, + { 0, NULL } +}; + +/* Wireshark ID */ +static gint proto_opa_snc = -1; + +/* Variables to hold expansion values between packets */ +static gint ett_snc = -1; +static gint ett_sncpbc = -1; +static gint ett_sncrhf = -1; + +/* SnC Fields */ +static gint hf_opa_snc_direction = -1; +static gint hf_opa_snc_portnumber = -1; +static gint hf_opa_snc_Reserved16 = -1; +static gint hf_opa_snc_Reserved32 = -1; +static gint hf_opa_snc_Reserved64 = -1; +static gint hf_opa_snc_pbc_reserved_63_48 = -1; +static gint hf_opa_snc_pbc_pbcstaticratecontrolcnt = -1; +static gint hf_opa_snc_pbc_pbcintr = -1; +static gint hf_opa_snc_pbc_pbcdcinfo = -1; +static gint hf_opa_snc_pbc_pbctestebp = -1; +static gint hf_opa_snc_pbc_pbcpacketbypass = -1; +static gint hf_opa_snc_pbc_pbcinserthcrc = -1; +static gint hf_opa_snc_pbc_pbccreditreturn = -1; +static gint hf_opa_snc_pbc_pbcinsertbypassicrc = -1; +static gint hf_opa_snc_pbc_pbctestbadicrc = -1; +static gint hf_opa_snc_pbc_pbcfecn = -1; +static gint hf_opa_snc_pbc_reserved_21_16 = -1; +static gint hf_opa_snc_pbc_pbcvl = -1; +static gint hf_opa_snc_pbc_pbclengthdws = -1; +static int * const _snc_pbc_1[] = { + &hf_opa_snc_pbc_reserved_63_48, + &hf_opa_snc_pbc_pbcstaticratecontrolcnt, + NULL +}; +static int * const _snc_pbc_2[] = { + &hf_opa_snc_pbc_pbcintr, + &hf_opa_snc_pbc_pbcdcinfo, + &hf_opa_snc_pbc_pbctestebp, + &hf_opa_snc_pbc_pbcpacketbypass, + &hf_opa_snc_pbc_pbcinserthcrc, + &hf_opa_snc_pbc_pbccreditreturn, + &hf_opa_snc_pbc_pbcinsertbypassicrc, + &hf_opa_snc_pbc_pbctestbadicrc, + &hf_opa_snc_pbc_pbcfecn, + &hf_opa_snc_pbc_reserved_21_16, + &hf_opa_snc_pbc_pbcvl, + &hf_opa_snc_pbc_pbclengthdws, + NULL +}; +static gint hf_opa_snc_rhf_icrcerr = -1; +static gint hf_opa_snc_rhf_reserved_62 = -1; +static gint hf_opa_snc_rhf_eccerr = -1; +static gint hf_opa_snc_rhf_lenerr = -1; +static gint hf_opa_snc_rhf_tiderr = -1; +static gint hf_opa_snc_rhf_rcvtypeerr = -1; +static gint hf_opa_snc_rhf_dcerr = -1; +static gint hf_opa_snc_rhf_dcuncerr = -1; +static gint hf_opa_snc_rhf_khdrlenerr = -1; +static gint hf_opa_snc_rhf_hdrqoffset = -1; +static gint hf_opa_snc_rhf_egroffset = -1; +static gint hf_opa_snc_rhf_rcvseq = -1; +static gint hf_opa_snc_rhf_dcinfo = -1; +static gint hf_opa_snc_rhf_egrindex = -1; +static gint hf_opa_snc_rhf_useegrbfr = -1; +static gint hf_opa_snc_rhf_rcvtype = -1; +static gint hf_opa_snc_rhf_pktlen = -1; +static int * const _snc_rhf_1[] = { + &hf_opa_snc_rhf_icrcerr, + &hf_opa_snc_rhf_reserved_62, + &hf_opa_snc_rhf_eccerr, + &hf_opa_snc_rhf_lenerr, + &hf_opa_snc_rhf_tiderr, + &hf_opa_snc_rhf_rcvtypeerr, + &hf_opa_snc_rhf_dcerr, + &hf_opa_snc_rhf_dcuncerr, + &hf_opa_snc_rhf_khdrlenerr, + &hf_opa_snc_rhf_hdrqoffset, + &hf_opa_snc_rhf_egroffset, + NULL +}; +static int * const _snc_rhf_2[] = { + &hf_opa_snc_rhf_rcvseq, + &hf_opa_snc_rhf_dcinfo, + &hf_opa_snc_rhf_egrindex, + &hf_opa_snc_rhf_useegrbfr, + &hf_opa_snc_rhf_rcvtype, + &hf_opa_snc_rhf_pktlen, + NULL +}; + +static expert_field ei_opa_snc_nobypass = EI_INIT; + +static void cf_opa_snc_dw_to_b(gchar *buf, guint32 value) +{ + snprintf(buf, ITEM_LABEL_LENGTH, "%u DWORDS, %u Bytes", value, value * 4); +} +static void cf_opa_snc_qw_to_b(gchar *buf, guint32 value) +{ + snprintf(buf, ITEM_LABEL_LENGTH, "%u QWORDS, %u Bytes", value, value * 8); +} + +/* Dissector Declarations */ +static dissector_handle_t opa_snc_handle; +static dissector_handle_t opa_9b_handle; + +static int dissect_opa_snc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + gint offset = 0; /* Current Offset */ + + gboolean isBypass = TRUE; /* Tracks if we are parsing a bypass packet or Not */ + guint8 Direction = tvb_get_guint8(tvb, offset + 1); + guint64 RHF_PBC; + proto_item *SnC_item; + proto_tree * SnC_tree,*PBC_tree,*RHF_tree; + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "Omni-Path"); + col_clear(pinfo->cinfo, COL_INFO); + + tree = proto_tree_get_parent_tree(tree); + + SnC_item = proto_tree_add_item(tree, proto_opa_snc, tvb, offset, 16, ENC_NA); + SnC_tree = proto_item_add_subtree(SnC_item, ett_snc); + + proto_tree_add_item(SnC_tree, hf_opa_snc_portnumber, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + proto_tree_add_item(SnC_tree, hf_opa_snc_direction, tvb, offset, 1, ENC_LITTLE_ENDIAN); + offset += 1; + proto_tree_add_item(SnC_tree, hf_opa_snc_Reserved16, tvb, offset, 2, ENC_NA); + offset += 2; + proto_tree_add_item(SnC_tree, hf_opa_snc_Reserved32, tvb, offset, 4, ENC_NA); + offset += 4; + + RHF_PBC = tvb_get_letoh64(tvb, offset); + switch (Direction) { + case 0: + PBC_tree = proto_tree_add_subtree(SnC_tree, tvb, offset, 8, ett_sncpbc, NULL, "PBC - Per Buffer Control"); + proto_tree_add_bitmask_list(PBC_tree, tvb, offset + 4, 4, _snc_pbc_1, ENC_LITTLE_ENDIAN); + proto_tree_add_bitmask_list(PBC_tree, tvb, offset, 4, _snc_pbc_2, ENC_LITTLE_ENDIAN); + isBypass = (((RHF_PBC >> 28) & 1) == 1); + break; + case 1: + RHF_tree = proto_tree_add_subtree(SnC_tree, tvb, offset, 8, ett_sncrhf, NULL, "RHF - Receive Header Flags"); + proto_tree_add_bitmask_list(RHF_tree, tvb, offset + 4, 4, _snc_rhf_1, ENC_LITTLE_ENDIAN); + proto_tree_add_bitmask_list(RHF_tree, tvb, offset, 4, _snc_rhf_2, ENC_LITTLE_ENDIAN); + isBypass = (((RHF_PBC >> 12) & 7) == 4); + break; + case 2: /* For use with internal debugging tools */ + proto_tree_add_item(SnC_tree, hf_opa_snc_Reserved64, tvb, offset, 8, ENC_NA); + isBypass = FALSE; + break; + default: + isBypass = FALSE; + } + offset += 8; + + if (isBypass) { + /* Bypass packets not implemented in this version */ + expert_add_info(pinfo, NULL, &ei_opa_snc_nobypass); + } else { + call_dissector(opa_9b_handle, tvb_new_subset_remaining(tvb, offset), pinfo, tree); + } + return tvb_captured_length(tvb); +} + +void proto_register_opa_snc(void) +{ + expert_module_t *expert_opa_snc; + + static hf_register_info hf[] = { + { &hf_opa_snc_direction, { + "Direction", "opa.snc.direction", + FT_UINT8, BASE_HEX, VALS(vals_opa_snc_direction), 0x0, NULL, HFILL } + }, + { &hf_opa_snc_portnumber, { + "Port Number", "opa.snc.portnumber", + FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_opa_snc_Reserved32, { + "Reserved (32 bits)", "opa.snc.reserved32", + FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_opa_snc_Reserved64, { + "Reserved (64 bits)", "opa.snc.reserved64", + FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_opa_snc_Reserved16, { + "Reserved (16 bits)", "opa.snc.reserved16", + FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_opa_snc_pbc_reserved_63_48, { + "Reserved (16 bits)", "opa.snc.pbc.reserved_63_48", + FT_UINT32, BASE_HEX, NULL, 0xFFFF0000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcstaticratecontrolcnt, { + "Static Rate Control Counter", "opa.snc.pbc.pbcstaticratecontrolcnt", + FT_UINT32, BASE_HEX, NULL, 0x0000FFFF, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcintr, { + "Interrupt", "opa.snc.pbc.pbcintr", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x80000000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcdcinfo, { + "DC Info", "opa.snc.pbc.pbcdcinfo", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x40000000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbctestebp, { + "Test End Bad Packet", "opa.snc.pbc.pbctestebp", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x20000000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcpacketbypass, { + "Packet Type", "opa.snc.pbc.pbcpacketbypass", + FT_BOOLEAN, 32, TFS(&tfs_opa_snc_pbc_isBypass), 0x10000000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcinserthcrc, { + "Insert Hcrc", "opa.snc.pbc.pbcinserthcrc", + FT_UINT32, BASE_HEX, VALS(vals_opa_snc_pbc_insertHcrc), 0x0C000000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbccreditreturn, { + "Request Credit Return", "opa.snc.pbc.pbccreditreturn", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x02000000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcinsertbypassicrc, { + "Insert ICRC for bypass packets", "opa.snc.pbc.pbcinsertbypassicrc", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x01000000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbctestbadicrc, { + "Insert a bad ICRC", "opa.snc.pbc.pbctestbadicrc", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x00800000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcfecn, { + "Set FECN bit", "opa.snc.pbc.pbcfecn", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x00400000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_reserved_21_16, { + "Reserved (6 bits)", "opa.snc.pbc.reserved_21_16", + FT_UINT32, BASE_HEX, NULL, 0x003F0000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbcvl, { + "VL", "opa.snc.pbc.pbcvl", + FT_UINT32, BASE_DEC, NULL, 0x0000F000, NULL, HFILL } + }, + { &hf_opa_snc_pbc_pbclengthdws, { + "pbclengthdws", "opa.snc.pbc.pbclengthdws", + FT_UINT32, BASE_CUSTOM, CF_FUNC(cf_opa_snc_dw_to_b), 0x00000FFF, NULL, HFILL } + }, + + { &hf_opa_snc_rhf_icrcerr, { + "ICRC error", "opa.snc.rhf.icrcerr", + FT_BOOLEAN, 32, TFS(&tfs_error_ok), 0x80000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_reserved_62, { + "Reserved (1 bit)", "opa.snc.rhf.reserved_62", + FT_UINT32, BASE_HEX, NULL, 0x40000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_eccerr, { + "Internal memory Uncorrectable error", "opa.snc.rhf.eccerr", + FT_BOOLEAN, 32, TFS(&tfs_error_ok), 0x20000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_lenerr, { + "Length Error", "opa.snc.rhf.lenerr", + FT_BOOLEAN, 32, TFS(&tfs_error_ok), 0x10000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_tiderr, { + "TID Error", "opa.snc.rhf.tiderr", + FT_BOOLEAN, 32, TFS(&tfs_error_ok), 0x08000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_rcvtypeerr, { + "Receive Type Error", "opa.snc.rhf.rcvtypeerr", + FT_UINT32, BASE_HEX, VALS(vals_opa_snc_rhf_rcvtypeerr), 0x07000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_dcerr, { + "End Bad Packet Error", "opa.snc.rhf.dcerr", + FT_BOOLEAN, 32, TFS(&tfs_error_ok), 0x00800000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_dcuncerr, { + "Uncorrectable or parity error", "opa.snc.rhf.dcuncerr", + FT_BOOLEAN, 32, TFS(&tfs_error_ok), 0x00400000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_khdrlenerr, { + "KDETH Length Error", "opa.snc.rhf.khdrlenerr", + FT_BOOLEAN, 32, TFS(&tfs_error_ok), 0x00200000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_hdrqoffset, { + "Receive Header Offset", "opa.snc.rhf.hdrqoffset", + FT_UINT32, BASE_CUSTOM, CF_FUNC(cf_opa_snc_dw_to_b), 0x001FF000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_egroffset, { + "Eager Buffer Offset", "opa.snc.rhf.egroffset", + FT_UINT32, BASE_CUSTOM, CF_FUNC(cf_opa_snc_qw_to_b), 0x00000FFF, NULL, HFILL } + }, + { &hf_opa_snc_rhf_rcvseq, { + "Receive Sequence", "opa.snc.rhf.rcvseq", + FT_UINT32, BASE_DEC, NULL, 0xF0000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_dcinfo, { + "DC Info", "opa.snc.rhf.dcinfo", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x08000000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_egrindex, { + "Eager Buffer Index", "opa.snc.rhf.egrindex", + FT_UINT32, BASE_HEX, NULL, 0x07FF0000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_useegrbfr, { + "Use Eager Buffer", "opa.snc.rhf.useegrbfr", + FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x00008000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_rcvtype, { + "Packet Receive Type", "opa.snc.rhf.rcvtype", + FT_UINT32, BASE_DEC_HEX, VALS(vals_opa_snc_rhf_rcvtype), 0x00007000, NULL, HFILL } + }, + { &hf_opa_snc_rhf_pktlen, { + "Packet Length", "opa.snc.rhf.pktlen", + FT_UINT32, BASE_CUSTOM, CF_FUNC(cf_opa_snc_dw_to_b), 0x00000FFF, NULL, HFILL } + } + }; + + static gint *ett[] = { + &ett_snc, + &ett_sncpbc, + &ett_sncrhf, + }; + + static ei_register_info ei[] = { + { &ei_opa_snc_nobypass, { + "opa.snc.nobypass", PI_PROTOCOL, PI_WARN, + "Bypass packets not implemented in this version", EXPFILL } + } + }; + + proto_opa_snc = proto_register_protocol("Intel Omni-Path SnC - Omni-Path Snoop and Capture MetaData Header", "OPA SnC", "opa.snc"); + opa_snc_handle = register_dissector("opa.snc", dissect_opa_snc, proto_opa_snc); + + proto_register_field_array(proto_opa_snc, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + expert_opa_snc = expert_register_protocol(proto_opa_snc); + expert_register_field_array(expert_opa_snc, ei, array_length(ei)); +} + +void proto_reg_handoff_opa_snc(void) +{ + opa_9b_handle = find_dissector("opa"); + + /* announce an anonymous Omni-Path SnC dissector */ + dissector_add_uint("erf.types.type", ERF_TYPE_OPA_SNC, opa_snc_handle); + +} + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local variables: + * c-basic-offset: 4 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * vi: set shiftwidth=4 tabstop=8 expandtab: + * :indentSize=4:tabSize=8:noTabs=true: + */ |