forked from osmocom/wireshark
412 lines
11 KiB
C
412 lines
11 KiB
C
/* tap-rlclte_stat.c
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* Copyright 2011 Martin Mathieson
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*
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* $Id$
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include <string.h>
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#include <epan/packet.h>
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#include <epan/packet_info.h>
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#include <epan/tap.h>
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#include <epan/stat_cmd_args.h>
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#include <epan/dissectors/packet-rlc-lte.h>
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enum {
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UEID_COLUMN,
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UL_FRAMES_COLUMN,
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UL_BYTES_COLUMN,
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UL_BW_COLUMN,
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UL_ACKS_COLUMN,
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UL_NACKS_COLUMN,
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UL_MISSING_COLUMN,
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DL_FRAMES_COLUMN,
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DL_BYTES_COLUMN,
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DL_BW_COLUMN,
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DL_ACKS_COLUMN,
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DL_NACKS_COLUMN,
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DL_MISSING_COLUMN,
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NUM_UE_COLUMNS
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};
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static const gchar *ue_titles[] = { " UEId",
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"UL Frames", "UL Bytes", " UL Mbs", "UL ACKs", "UL NACKs", "UL Missed",
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"DL Frames", "DL Bytes", " DL Mbs", "DL ACKs", "DL NACKs", "DL Missed"};
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/* Stats for one UE */
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typedef struct rlc_lte_row_data {
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/* Key for matching this row */
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guint16 ueid;
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gboolean is_predefined_data;
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guint32 UL_frames;
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guint32 UL_total_bytes;
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nstime_t UL_time_start;
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nstime_t UL_time_stop;
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guint32 UL_total_acks;
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guint32 UL_total_nacks;
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guint32 UL_total_missing;
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guint32 DL_frames;
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guint32 DL_total_bytes;
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nstime_t DL_time_start;
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nstime_t DL_time_stop;
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guint32 DL_total_acks;
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guint32 DL_total_nacks;
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guint32 DL_total_missing;
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} rlc_lte_row_data;
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/* Common channel stats */
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typedef struct rlc_lte_common_stats {
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guint32 bcch_frames;
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guint32 bcch_bytes;
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guint32 pcch_frames;
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guint32 pcch_bytes;
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} rlc_lte_common_stats;
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/* One row/UE in the UE table */
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typedef struct rlc_lte_ep {
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struct rlc_lte_ep* next;
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struct rlc_lte_row_data stats;
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} rlc_lte_ep_t;
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/* Used to keep track of all RLC LTE statistics */
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typedef struct rlc_lte_stat_t {
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rlc_lte_ep_t *ep_list;
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guint32 total_frames;
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/* Common stats */
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rlc_lte_common_stats common_stats;
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} rlc_lte_stat_t;
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/* Reset RLC stats */
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static void
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rlc_lte_stat_reset(void *phs)
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{
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rlc_lte_stat_t* rlc_lte_stat = (rlc_lte_stat_t *)phs;
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rlc_lte_ep_t* list = rlc_lte_stat->ep_list;
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rlc_lte_stat->total_frames = 0;
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memset(&rlc_lte_stat->common_stats, 0, sizeof(rlc_lte_common_stats));
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if (!list) {
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return;
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}
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rlc_lte_stat->ep_list = NULL;
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}
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/* Allocate a rlc_lte_ep_t struct to store info for new UE */
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static rlc_lte_ep_t* alloc_rlc_lte_ep(struct rlc_lte_tap_info *si, packet_info *pinfo _U_)
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{
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rlc_lte_ep_t* ep;
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if (!si) {
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return NULL;
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}
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if (!(ep = g_malloc(sizeof(rlc_lte_ep_t)))) {
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return NULL;
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}
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/* Copy SI data into ep->stats */
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ep->stats.ueid = si->ueid;
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/* Counts for new UE are all 0 */
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ep->stats.UL_frames = 0;
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ep->stats.DL_frames = 0;
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ep->stats.UL_total_bytes = 0;
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ep->stats.DL_total_bytes = 0;
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memset(&ep->stats.DL_time_start, 0, sizeof(nstime_t));
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memset(&ep->stats.DL_time_stop, 0, sizeof(nstime_t));
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ep->stats.UL_total_acks = 0;
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ep->stats.DL_total_acks = 0;
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ep->stats.UL_total_nacks = 0;
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ep->stats.DL_total_nacks = 0;
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ep->stats.UL_total_missing = 0;
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ep->stats.DL_total_missing = 0;
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ep->next = NULL;
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return ep;
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}
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/* Process stat struct for a RLC LTE frame */
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static int
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rlc_lte_stat_packet(void *phs, packet_info *pinfo, epan_dissect_t *edt _U_,
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const void *phi)
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{
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/* Get reference to stats struct */
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rlc_lte_stat_t *hs = (rlc_lte_stat_t *)phs;
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rlc_lte_ep_t *tmp = NULL, *te = NULL;
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/* Cast tap info struct */
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struct rlc_lte_tap_info *si = (struct rlc_lte_tap_info *)phi;
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/* Need this */
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if (!hs) {
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return 0;
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}
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/* Inc top-level frame count */
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hs->total_frames++;
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/* Common channel stats */
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switch (si->channelType) {
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case CHANNEL_TYPE_BCCH_BCH:
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case CHANNEL_TYPE_BCCH_DL_SCH:
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hs->common_stats.bcch_frames++;
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hs->common_stats.bcch_bytes += si->pduLength;
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return 1;
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case CHANNEL_TYPE_PCCH:
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hs->common_stats.pcch_frames++;
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hs->common_stats.pcch_bytes += si->pduLength;
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return 1;
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default:
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break;
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}
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/* For per-UE data, must create a new row if none already existing */
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if (!hs->ep_list) {
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/* Allocate new list */
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hs->ep_list = alloc_rlc_lte_ep(si, pinfo);
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/* Make it the first/only entry */
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te = hs->ep_list;
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} else {
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/* Look among existing rows for this UEId */
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for (tmp = hs->ep_list; (tmp != NULL); tmp = tmp->next) {
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if (tmp->stats.ueid == si->ueid) {
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te = tmp;
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break;
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}
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}
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/* Not found among existing, so create a new one anyway */
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if (te == NULL) {
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if ((te = alloc_rlc_lte_ep(si, pinfo))) {
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/* Add new item to end of list */
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rlc_lte_ep_t *p = hs->ep_list;
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while (p->next) {
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p = p->next;
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}
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p->next = te;
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te->next = NULL;
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}
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}
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}
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/* Really should have a row pointer by now */
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if (!te) {
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return 0;
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}
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/* Update entry with details from si */
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te->stats.ueid = si->ueid;
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/* Top-level traffic stats */
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if (si->direction == DIRECTION_UPLINK) {
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/* Update time range */
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if (te->stats.UL_frames == 0) {
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te->stats.UL_time_start = si->time;
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}
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te->stats.UL_time_stop = si->time;
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te->stats.UL_frames++;
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te->stats.UL_total_bytes += si->pduLength;
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}
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else {
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/* Update time range */
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if (te->stats.DL_frames == 0) {
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te->stats.DL_time_start = si->time;
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}
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te->stats.DL_time_stop = si->time;
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te->stats.DL_frames++;
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te->stats.DL_total_bytes += si->pduLength;
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}
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if (si->direction == DIRECTION_UPLINK) {
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if (si->isControlPDU) {
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te->stats.UL_total_acks++;
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}
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te->stats.UL_total_nacks += si->noOfNACKs;
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te->stats.UL_total_missing += si->missingSNs;
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}
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else {
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if (si->isControlPDU) {
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te->stats.DL_total_acks++;
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}
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te->stats.DL_total_nacks += si->noOfNACKs;
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te->stats.DL_total_missing += si->missingSNs;
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}
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return 1;
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}
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/* Calculate and return a bandwidth figure, in Mbs */
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static float calculate_bw(nstime_t *start_time, nstime_t *stop_time, guint32 bytes)
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{
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if (memcmp(start_time, stop_time, sizeof(nstime_t)) != 0) {
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float elapsed_ms = (((float)stop_time->secs - (float)start_time->secs) * 1000) +
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(((float)stop_time->nsecs - (float)start_time->nsecs) / 1000000);
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return ((bytes * 8) / elapsed_ms) / 1000;
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}
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else {
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return 0.0;
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}
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}
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/* (Re)draw RLC stats */
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static void
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rlc_lte_stat_draw(void *phs)
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{
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guint16 number_of_ues = 0;
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gint i;
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/* Look up the statistics struct */
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rlc_lte_stat_t *hs = (rlc_lte_stat_t *)phs;
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rlc_lte_ep_t* list = hs->ep_list, *tmp = 0;
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/* Common channel data */
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printf("Common Data:\n");
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printf("==============\n");
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printf("BCCH Frames: %u BCCH Bytes: %u PCCH Frames: %u PCCH Bytes: %u\n\n",
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hs->common_stats.bcch_frames, hs->common_stats.bcch_bytes,
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hs->common_stats.pcch_frames, hs->common_stats.pcch_bytes);
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/* Per-UE table entries */
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/* Set title that shows how many UEs currently in table */
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for (tmp = list; (tmp!=NULL); tmp=tmp->next, number_of_ues++);
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printf("Per UE Data - %u UEs (%u frames)\n", number_of_ues, hs->total_frames);
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printf("==========================================\n");
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/* Show column titles */
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for (i=0; i < NUM_UE_COLUMNS; i++) {
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printf("%s ", ue_titles[i]);
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}
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printf("\n");
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/* For each row/UE in the model */
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for (tmp = list; tmp; tmp=tmp->next) {
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/* Calculate bandwidth */
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float UL_bw = calculate_bw(&tmp->stats.UL_time_start,
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&tmp->stats.UL_time_stop,
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tmp->stats.UL_total_bytes);
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float DL_bw = calculate_bw(&tmp->stats.DL_time_start,
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&tmp->stats.DL_time_stop,
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tmp->stats.DL_total_bytes);
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printf("%5u %10u %9u %10f %8u %9u %10u %10u %9u %10f %8u %9u %10u\n",
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tmp->stats.ueid,
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tmp->stats.UL_frames,
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tmp->stats.UL_total_bytes, UL_bw,
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tmp->stats.UL_total_acks,
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tmp->stats.UL_total_nacks,
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tmp->stats.UL_total_missing,
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tmp->stats.DL_frames,
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tmp->stats.DL_total_bytes, DL_bw,
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tmp->stats.DL_total_acks,
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tmp->stats.DL_total_nacks,
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tmp->stats.DL_total_missing);
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}
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}
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/* Create a new RLC LTE stats struct */
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static void rlc_lte_stat_init(const char *optarg, void *userdata _U_)
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{
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rlc_lte_stat_t *hs;
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const char *filter = NULL;
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GString *error_string;
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/* Check for a filter string */
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if (strncmp(optarg, "rlc-lte,stat,", 13) == 0) {
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/* Skip those characters from filter to display */
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filter = optarg + 13;
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}
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else {
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/* No filter */
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filter = NULL;
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}
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/* Create top-level struct */
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hs = g_malloc(sizeof(rlc_lte_stat_t));
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memset(hs, 0, sizeof(rlc_lte_stat_t));
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hs->ep_list = NULL;
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/**********************************************/
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/* Register the tap listener */
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/**********************************************/
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error_string = register_tap_listener("rlc-lte", hs,
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filter, 0,
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rlc_lte_stat_reset,
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rlc_lte_stat_packet,
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rlc_lte_stat_draw);
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if (error_string) {
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g_string_free(error_string, TRUE);
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g_free(hs);
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exit(1);
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}
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}
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/* Register this tap listener (need void on own so line register function found) */
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void
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register_tap_listener_rlc_lte_stat(void)
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{
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register_stat_cmd_arg("rlc-lte,stat", rlc_lte_stat_init, NULL);
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}
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