143 lines
4.3 KiB
C
143 lines
4.3 KiB
C
/* packet-mac-nr.h
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*
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* Martin Mathieson
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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/* radioType */
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#define FDD_RADIO 1
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#define TDD_RADIO 2
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/* Direction */
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#define DIRECTION_UPLINK 0
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#define DIRECTION_DOWNLINK 1
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/* rntiType */
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#define WS_NO_RNTI 0
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#define WS_P_RNTI 1
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#define WS_RA_RNTI 2
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#define WS_C_RNTI 3
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#define WS_SI_RNTI 4
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#define WS_CS_RNTI 5
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/* Context info attached to each NR MAC frame */
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typedef struct mac_nr_info
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{
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/* Needed for decode */
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guint8 radioType;
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guint8 direction;
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guint8 rntiType;
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/* Extra info to display */
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guint16 rnti;
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guint16 ueid;
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guint8 harqid;
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/* Will these be included in the ME PHR report? */
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guint8 phr_type2_othercell;
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/* Timing info */
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gboolean sfnSlotInfoPresent;
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guint16 sysframeNumber;
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guint16 slotNumber;
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/* Length of DL PDU or UL grant size in bytes */
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guint16 length;
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} mac_nr_info;
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/*****************************************************************/
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/* UDP framing format */
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/* ----------------------- */
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/* Several people have asked about dissecting MAC by framing */
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/* PDUs over IP. A suggested format over UDP has been created */
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/* and implemented by this dissector, using the definitions */
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/* below. */
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/* */
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/* A heuristic dissector (enabled by a preference) will */
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/* recognise a signature at the beginning of these frames. */
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/*****************************************************************/
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/* Signature. Rather than try to define a port for this, or make the
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port number a preference, frames will start with this string (with no
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terminating NULL */
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#define MAC_NR_START_STRING "mac-nr"
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/* Fixed fields. This is followed by the following 3 mandatory fields:
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- radioType (1 byte)
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- direction (1 byte)
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- rntiType (1 byte)
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(where the allowed values are defined above */
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/* Optional fields. Attaching this info to frames will allow you
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to show you display/filter/plot/add-custom-columns on these fields, so should
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be added if available.
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The format is to have the tag, followed by the value (there is no length field,
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it's implicit from the tag) */
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#define MAC_NR_RNTI_TAG 0x02
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/* 2 bytes, network order */
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#define MAC_NR_UEID_TAG 0x03
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/* 2 bytes, network order */
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#define MAC_NR_FRAME_SUBFRAME_TAG 0x04
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/* 2 bytes, deprecated, do not use it */
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#define MAC_NR_PHR_TYPE2_OTHERCELL_TAG 0x05
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/* 1 byte, TRUE/FALSE */
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#define MAC_NR_HARQID 0x06
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/* 1 byte */
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#define MAC_NR_FRAME_SLOT_TAG 0x07
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/* 4 bytes, network order, SFN is stored in the 2 first bytes and slot number in the 2 last bytes */
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/* MAC PDU. Following this tag comes the actual MAC PDU (there is no length, the PDU
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continues until the end of the frame) */
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#define MAC_NR_PAYLOAD_TAG 0x01
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/* Type to store parameters for configuring LCID->RLC channel settings for DRB */
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/* Some are optional, and may not be seen (e.g. on reestablishment) */
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typedef struct nr_drb_mac_rlc_mapping_t
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{
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gboolean active;
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guint16 ueid; /* Mandatory */
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guint8 drbid; /* Mandatory */
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gboolean lcid_present;
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guint8 lcid; /* Part of LogicalChannelConfig - optional */
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gboolean rlcMode_present;
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guint8 rlcMode; /* Part of RLC config - optional */
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guint8 tempDirection; /* So know direction of next SN length... */
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gboolean rlcUlSnLength_present;
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guint8 rlcUlSnLength; /* Part of RLC config - optional */
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gboolean rlcDlSnLength_present;
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guint8 rlcDlSnLength; /* Part of RLC config - optional */
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} nr_drb_mac_rlc_mapping_t;
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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