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wireshark/ui/cli/tap-macltestat.c

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/* tap-macltestat.c
* Copyright 2011 Martin Mathieson
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <epan/packet.h>
#include <epan/tap.h>
#include <epan/stat_tap_ui.h>
#include <epan/dissectors/packet-mac-lte.h>
void register_tap_listener_mac_lte_stat(void);
/**********************************************/
/* Table column identifiers and title strings */
enum {
RNTI_COLUMN,
RNTI_TYPE_COLUMN,
UEID_COLUMN,
UL_FRAMES_COLUMN,
UL_BYTES_COLUMN,
UL_BW_COLUMN,
UL_PADDING_PERCENT_COLUMN,
UL_RETX_FRAMES_COLUMN,
DL_FRAMES_COLUMN,
DL_BYTES_COLUMN,
DL_BW_COLUMN,
DL_PADDING_PERCENT_COLUMN,
DL_CRC_FAILED_COLUMN,
DL_CRC_HIGH_CODE_RATE_COLUMN,
DL_CRC_PDSCH_LOST_COLUMN,
DL_CRC_DUPLICATE_NONZERO_RV_COLUMN,
DL_RETX_FRAMES_COLUMN,
NUM_UE_COLUMNS
};
static const gchar *ue_titles[] = { " RNTI", " Type", "UEId",
"UL Frames", "UL Bytes", "UL Mb/sec", " UL Pad %", "UL ReTX",
"DL Frames", "DL Bytes", "DL Mb/sec", " DL Pad %", "DL CRC Fail", "DL CRC HCR", "DL CRC PDSCH Lost", "DL CRC DupNonZeroRV", "DL ReTX"};
/* Stats for one UE */
typedef struct mac_lte_row_data {
/* Key for matching this row */
guint16 rnti;
guint8 rnti_type;
guint16 ueid;
gboolean is_predefined_data;
guint32 UL_frames;
guint32 UL_raw_bytes; /* all bytes */
guint32 UL_total_bytes; /* payload */
nstime_t UL_time_start;
nstime_t UL_time_stop;
guint32 UL_padding_bytes;
guint32 UL_CRC_errors;
guint32 UL_retx_frames;
guint32 DL_frames;
guint32 DL_raw_bytes; /* all bytes */
guint32 DL_total_bytes;
nstime_t DL_time_start;
nstime_t DL_time_stop;
guint32 DL_padding_bytes;
guint32 DL_CRC_failures;
guint32 DL_CRC_high_code_rate;
guint32 DL_CRC_PDSCH_lost;
guint32 DL_CRC_Duplicate_NonZero_RV;
guint32 DL_retx_frames;
} mac_lte_row_data;
/* One row/UE in the UE table */
typedef struct mac_lte_ep {
struct mac_lte_ep *next;
struct mac_lte_row_data stats;
} mac_lte_ep_t;
/* Common channel stats */
typedef struct mac_lte_common_stats {
guint32 all_frames;
guint32 mib_frames;
guint32 sib_frames;
guint32 sib_bytes;
guint32 pch_frames;
guint32 pch_bytes;
guint32 pch_paging_ids;
guint32 rar_frames;
guint32 rar_entries;
guint16 max_ul_ues_in_tti;
guint16 max_dl_ues_in_tti;
} mac_lte_common_stats;
/* Top-level struct for MAC LTE statistics */
typedef struct mac_lte_stat_t {
/* Common stats */
mac_lte_common_stats common_stats;
/* Keep track of unique rntis & ueids */
guint8 used_ueids[65535];
guint8 used_rntis[65535];
guint16 number_of_ueids;
guint16 number_of_rntis;
mac_lte_ep_t *ep_list;
} mac_lte_stat_t;
/* Reset the statistics window */
static void
mac_lte_stat_reset(void *phs)
{
mac_lte_stat_t *mac_lte_stat = (mac_lte_stat_t *)phs;
mac_lte_ep_t *list = mac_lte_stat->ep_list;
/* Reset counts of unique ueids & rntis */
memset(mac_lte_stat->used_ueids, 0, 65535);
mac_lte_stat->number_of_ueids = 0;
memset(mac_lte_stat->used_rntis, 0, 65535);
mac_lte_stat->number_of_rntis = 0;
/* Zero common stats */
memset(&(mac_lte_stat->common_stats), 0, sizeof(mac_lte_common_stats));
if (!list) {
return;
}
mac_lte_stat->ep_list = NULL;
}
/* Allocate a mac_lte_ep_t struct to store info for new UE */
static mac_lte_ep_t *alloc_mac_lte_ep(const struct mac_lte_tap_info *si, packet_info *pinfo _U_)
{
mac_lte_ep_t *ep;
if (!si) {
return NULL;
}
if (!(ep = g_new(mac_lte_ep_t, 1))) {
return NULL;
}
/* Copy SI data into ep->stats */
ep->stats.rnti = si->rnti;
ep->stats.rnti_type = si->rntiType;
ep->stats.ueid = si->ueid;
/* Counts for new UE are all 0 */
ep->stats.UL_frames = 0;
ep->stats.DL_frames = 0;
ep->stats.UL_total_bytes = 0;
ep->stats.UL_raw_bytes = 0;
ep->stats.UL_padding_bytes = 0;
ep->stats.DL_total_bytes = 0;
ep->stats.DL_raw_bytes = 0;
ep->stats.DL_padding_bytes = 0;
ep->stats.UL_CRC_errors = 0;
ep->stats.DL_CRC_failures = 0;
ep->stats.DL_CRC_high_code_rate = 0;
ep->stats.DL_CRC_PDSCH_lost = 0;
ep->stats.DL_CRC_Duplicate_NonZero_RV = 0;
ep->stats.UL_retx_frames = 0;
ep->stats.DL_retx_frames = 0;
ep->next = NULL;
return ep;
}
/* Update counts of unique rntis & ueids */
static void update_ueid_rnti_counts(guint16 rnti, guint16 ueid, mac_lte_stat_t *hs)
{
if (!hs->used_ueids[ueid]) {
hs->used_ueids[ueid] = TRUE;
hs->number_of_ueids++;
}
if (!hs->used_rntis[rnti]) {
hs->used_rntis[rnti] = TRUE;
hs->number_of_rntis++;
}
}
/* Process stat struct for a MAC LTE frame */
static tap_packet_status
mac_lte_stat_packet(void *phs, packet_info *pinfo, epan_dissect_t *edt _U_,
const void *phi, tap_flags_t flags _U_)
{
/* Get reference to stat window instance */
mac_lte_stat_t *hs = (mac_lte_stat_t *)phs;
mac_lte_ep_t *tmp = NULL, *te = NULL;
int i;
/* Cast tap info struct */
const struct mac_lte_tap_info *si = (const struct mac_lte_tap_info *)phi;
if (!hs) {
return TAP_PACKET_DONT_REDRAW;
}
hs->common_stats.all_frames++;
/* For common channels, just update global counters */
switch (si->rntiType) {
case P_RNTI:
hs->common_stats.pch_frames++;
hs->common_stats.pch_bytes += si->single_number_of_bytes;
hs->common_stats.pch_paging_ids += si->number_of_paging_ids;
return TAP_PACKET_REDRAW;
case SI_RNTI:
hs->common_stats.sib_frames++;
hs->common_stats.sib_bytes += si->single_number_of_bytes;
return TAP_PACKET_REDRAW;
case NO_RNTI:
hs->common_stats.mib_frames++;
return TAP_PACKET_REDRAW;
case RA_RNTI:
hs->common_stats.rar_frames++;
hs->common_stats.rar_entries += si->number_of_rars;
return TAP_PACKET_REDRAW;
case C_RNTI:
case SPS_RNTI:
/* Drop through for per-UE update */
break;
default:
/* Error */
return TAP_PACKET_DONT_REDRAW;
}
/* Check max UEs/tti counter */
switch (si->direction) {
case DIRECTION_UPLINK:
hs->common_stats.max_ul_ues_in_tti =
MAX(hs->common_stats.max_ul_ues_in_tti, si->ueInTTI);
break;
case DIRECTION_DOWNLINK:
hs->common_stats.max_dl_ues_in_tti =
MAX(hs->common_stats.max_dl_ues_in_tti, si->ueInTTI);
break;
}
/* For per-UE data, must create a new row if none already existing */
if (!hs->ep_list) {
/* Allocate new list */
hs->ep_list = alloc_mac_lte_ep(si, pinfo);
/* Make it the first/only entry */
te = hs->ep_list;
/* Update counts of unique ueids & rntis */
update_ueid_rnti_counts(si->rnti, si->ueid, hs);
} else {
/* Look among existing rows for this RNTI */
for (tmp = hs->ep_list;(tmp != NULL); tmp = tmp->next) {
/* Match only by RNTI and UEId together */
if ((tmp->stats.rnti == si->rnti) &&
(tmp->stats.ueid == si->ueid)) {
te = tmp;
break;
}
}
/* Not found among existing, so create a new one anyway */
if (te == NULL) {
if ((te = alloc_mac_lte_ep(si, pinfo))) {
/* Add new item to end of list */
mac_lte_ep_t *p = hs->ep_list;
while (p->next) {
p = p->next;
}
p->next = te;
te->next = NULL;
/* Update counts of unique ueids & rntis */
update_ueid_rnti_counts(si->rnti, si->ueid, hs);
}
}
}
/* Really should have a row pointer by now */
if (!te) {
return TAP_PACKET_DONT_REDRAW;
}
/* Update entry with details from si */
te->stats.rnti = si->rnti;
te->stats.is_predefined_data = si->isPredefinedData;
/* Uplink */
if (si->direction == DIRECTION_UPLINK) {
if (si->isPHYRetx) {
te->stats.UL_retx_frames++;
return TAP_PACKET_REDRAW;
}
if (si->crcStatusValid && (si->crcStatus != crc_success)) {
te->stats.UL_CRC_errors++;
return TAP_PACKET_REDRAW;
}
/* Update time range */
if (te->stats.UL_frames == 0) {
te->stats.UL_time_start = si->mac_lte_time;
}
te->stats.UL_time_stop = si->mac_lte_time;
te->stats.UL_frames++;
te->stats.UL_raw_bytes += si->raw_length;
te->stats.UL_padding_bytes += si->padding_bytes;
if (si->isPredefinedData) {
te->stats.UL_total_bytes += si->single_number_of_bytes;
}
else {
for (i = 0; i < MAC_LTE_DATA_LCID_COUNT_MAX; i++) {
te->stats.UL_total_bytes += si->bytes_for_lcid[i];
}
}
}
/* Downlink */
else {
if (si->isPHYRetx) {
te->stats.DL_retx_frames++;
return TAP_PACKET_REDRAW;
}
if (si->crcStatusValid && (si->crcStatus != crc_success)) {
switch (si->crcStatus) {
case crc_fail:
te->stats.DL_CRC_failures++;
break;
case crc_high_code_rate:
te->stats.DL_CRC_high_code_rate++;
break;
case crc_pdsch_lost:
te->stats.DL_CRC_PDSCH_lost++;
break;
case crc_duplicate_nonzero_rv:
te->stats.DL_CRC_Duplicate_NonZero_RV++;
break;
default:
/* Something went wrong! */
break;
}
return TAP_PACKET_REDRAW;
}
/* Update time range */
if (te->stats.DL_frames == 0) {
te->stats.DL_time_start = si->mac_lte_time;
}
te->stats.DL_time_stop = si->mac_lte_time;
te->stats.DL_frames++;
te->stats.DL_raw_bytes += si->raw_length;
te->stats.DL_padding_bytes += si->padding_bytes;
if (si->isPredefinedData) {
te->stats.DL_total_bytes += si->single_number_of_bytes;
}
else {
for (i = 0; i < MAC_LTE_DATA_LCID_COUNT_MAX; i++) {
te->stats.DL_total_bytes += si->bytes_for_lcid[i];
}
}
}
return TAP_PACKET_REDRAW;
}
/* Calculate and return a bandwidth figure, in Mbs */
static float calculate_bw(nstime_t *start_time, nstime_t *stop_time, guint32 bytes)
{
/* Can only calculate bandwidth if have time delta */
if (memcmp(start_time, stop_time, sizeof(nstime_t)) != 0) {
float elapsed_ms = (((float)stop_time->secs - (float)start_time->secs) * 1000) +
(((float)stop_time->nsecs - (float)start_time->nsecs) / 1000000);
/* Only really meaningful if have a few frames spread over time...
For now at least avoid dividing by something very close to 0.0 */
if (elapsed_ms < 2.0) {
return 0.0f;
}
return ((bytes * 8) / elapsed_ms) / 1000;
}
else {
return 0.0f;
}
}
/* Output the accumulated stats */
static void
mac_lte_stat_draw(void *phs)
{
gint i;
guint16 number_of_ues = 0;
/* Deref the struct */
mac_lte_stat_t *hs = (mac_lte_stat_t *)phs;
mac_lte_ep_t *list = hs->ep_list, *tmp = 0;
/* System data */
printf("System data:\n");
printf("============\n");
printf("Max UL UEs/TTI: %u Max DL UEs/TTI: %u\n\n",
hs->common_stats.max_ul_ues_in_tti, hs->common_stats.max_dl_ues_in_tti);
/* Common channel data */
printf("Common channel data:\n");
printf("====================\n");
printf("MIBs: %u ", hs->common_stats.mib_frames);
printf("SIB Frames: %u ", hs->common_stats.sib_frames);
printf("SIB Bytes: %u ", hs->common_stats.sib_bytes);
printf("PCH Frames: %u ", hs->common_stats.pch_frames);
printf("PCH Bytes: %u ", hs->common_stats.pch_bytes);
printf("PCH Paging IDs: %u ", hs->common_stats.pch_paging_ids);
printf("RAR Frames: %u ", hs->common_stats.rar_frames);
printf("RAR Entries: %u\n\n", hs->common_stats.rar_entries);
/* Per-UE table entries */
/* Set title to show how many UEs in table */
for (tmp = list; (tmp!=NULL); tmp=tmp->next, number_of_ues++);
printf("UL/DL-SCH data (%u entries - %u unique RNTIs, %u unique UEIds):\n",
number_of_ues, hs->number_of_rntis, hs->number_of_ueids);
printf("==================================================================\n");
/* Show column titles */
for (i=0; i < NUM_UE_COLUMNS; i++) {
printf("%s ", ue_titles[i]);
}
printf("\n");
/* Write a row for each UE */
for (tmp = list; tmp; tmp=tmp->next) {
/* Calculate bandwidth */
float UL_bw = calculate_bw(&tmp->stats.UL_time_start,
&tmp->stats.UL_time_stop,
tmp->stats.UL_total_bytes);
float DL_bw = calculate_bw(&tmp->stats.DL_time_start,
&tmp->stats.DL_time_stop,
tmp->stats.DL_total_bytes);
printf("%5u %7s %5u %10u %9u %10f %10f %8u %10u %9u %10f %10f %12u %11u %18u %20u %8u\n",
tmp->stats.rnti,
(tmp->stats.rnti_type == C_RNTI) ? "C-RNTI" : "SPS-RNTI",
tmp->stats.ueid,
tmp->stats.UL_frames,
tmp->stats.UL_total_bytes,
UL_bw,
tmp->stats.UL_raw_bytes ?
(((float)tmp->stats.UL_padding_bytes / (float)tmp->stats.UL_raw_bytes) * 100.0) :
0.0,
tmp->stats.UL_retx_frames,
tmp->stats.DL_frames,
tmp->stats.DL_total_bytes,
DL_bw,
tmp->stats.DL_raw_bytes ?
(((float)tmp->stats.DL_padding_bytes / (float)tmp->stats.DL_raw_bytes) * 100.0) :
0.0,
tmp->stats.DL_CRC_failures,
tmp->stats.DL_CRC_high_code_rate,
tmp->stats.DL_CRC_PDSCH_lost,
tmp->stats.DL_CRC_Duplicate_NonZero_RV,
tmp->stats.DL_retx_frames);
}
}
/* Create a new MAC LTE stats struct */
static void mac_lte_stat_init(const char *opt_arg, void *userdata _U_)
{
mac_lte_stat_t *hs;
const char *filter = NULL;
GString *error_string;
/* Check for a filter string */
if (strncmp(opt_arg, "mac-lte,stat,", 13) == 0) {
/* Skip those characters from filter to display */
filter = opt_arg + 13;
}
else {
/* No filter */
filter = NULL;
}
/* Create struct */
hs = g_new0(mac_lte_stat_t, 1);
hs->ep_list = NULL;
error_string = register_tap_listener("mac-lte", hs,
filter, 0,
mac_lte_stat_reset,
mac_lte_stat_packet,
mac_lte_stat_draw,
NULL);
if (error_string) {
g_string_free(error_string, TRUE);
g_free(hs);
exit(1);
}
}
static stat_tap_ui mac_lte_stat_ui = {
REGISTER_STAT_GROUP_GENERIC,
NULL,
"mac-lte,stat",
mac_lte_stat_init,
0,
NULL
};
/* Register this tap listener (need void on own so line register function found) */
void
register_tap_listener_mac_lte_stat(void)
{
register_stat_tap_ui(&mac_lte_stat_ui, NULL);
}
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