270 lines
9.7 KiB
C
270 lines
9.7 KiB
C
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/****************************************************************************
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* net/procfs/net_mld.c
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*
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* Copyright (C) 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/* Output format:
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*
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* Joins: xxxx Leaves: xxxx
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* Sent Sched Sent
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* Queries: xxxx xxxx
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* Reports:
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* Ver 1: ---- xxxx
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* Ver 2: xxxx xxxx
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* Done: xxxx xxxx
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* Received:
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* Queries:
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* Gen: xxxx
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* MAS: xxxx
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* MASSQ: xxxx
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* Ucast: xxxx
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* Bad: xxxx
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* Reports:
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* Ver 1: xxxx
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* Ver 2: xxxx
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* Done: xxxx
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <string.h>
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#include <debug.h>
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#include <nuttx/net/netstats.h>
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#include "procfs/procfs.h"
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#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_FS_PROCFS) && \
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!defined(CONFIG_FS_PROCFS_EXCLUDE_NET) && defined(CONFIG_NET_STATISTICS)
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#if defined(CONFIG_NET_ICMPv6) || defined(CONFIG_NET_MLD)
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* Line generating functions */
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static int netprocfs_joinleave(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_queries_sent(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_reports_sent(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_done_sent(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_queries_received_1(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_queries_received_2(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_reports_received(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_done_received(FAR struct netprocfs_file_s *netfile);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* Line generating functions */
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static const linegen_t g_mld_linegen[] =
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{
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netprocfs_joinleave,
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netprocfs_queries_sent,
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netprocfs_reports_sent,
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netprocfs_done_sent,
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netprocfs_queries_received_1,
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netprocfs_queries_received_2,
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netprocfs_reports_received,
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netprocfs_done_received
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};
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#define NSTAT_LINES (sizeof(g_mld_linegen) / sizeof(linegen_t))
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: netprocfs_joinleave
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****************************************************************************/
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static int netprocfs_joinleave(FAR struct netprocfs_file_s *netfile)
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{
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int len;
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len = snprintf(netfile->line, NET_LINELEN, "Joins: %04x ",
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g_netstats.mld.joins);
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "Leaves: %04x\n",
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g_netstats.mld.leaves);
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return len;
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}
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/****************************************************************************
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* Name: netprocfs_queries_sent
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****************************************************************************/
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static int netprocfs_queries_sent(FAR struct netprocfs_file_s *netfile)
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{
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int len;
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len = snprintf(netfile->line, NET_LINELEN, "Sent Sched Sent\n");
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Queries: %04x %04x\n",
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g_netstats.mld.query_sched, g_netstats.mld.query_sent);
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return len;
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}
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/****************************************************************************
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* Name: netprocfs_reports_sent
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****************************************************************************/
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static int netprocfs_reports_sent(FAR struct netprocfs_file_s *netfile)
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{
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int len;
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len = snprintf(netfile->line, NET_LINELEN, " Reports:\n");
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Ver 1: ---- %04x\n",
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g_netstats.mld.v1report_sent);
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Ver 2: %04x %04x\n",
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g_netstats.mld.report_sched, g_netstats.mld.v2report_sent);
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return len;
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}
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/****************************************************************************
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* Name: netprocfs_done_sent
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****************************************************************************/
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static int netprocfs_done_sent(FAR struct netprocfs_file_s *netfile)
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{
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return snprintf(netfile->line, NET_LINELEN, " Done: %04x %04x\n",
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g_netstats.mld.done_sched, g_netstats.mld.done_sent);
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}
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/****************************************************************************
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* Name: netprocfs_queries_received_1 and _2
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****************************************************************************/
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static int netprocfs_queries_received_1(FAR struct netprocfs_file_s *netfile)
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{
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int len;
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len = snprintf(netfile->line, NET_LINELEN, "Received:\n");
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Queries:\n");
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Gen: %04x\n",
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g_netstats.mld.gm_query_received);
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" MAS: %04x\n",
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g_netstats.mld.mas_query_received);
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return len;
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}
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static int netprocfs_queries_received_2(FAR struct netprocfs_file_s *netfile)
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{
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int len;
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len = snprintf(netfile->line, NET_LINELEN,
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" MASS: %04x\n",
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g_netstats.mld.mass_query_received);
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Ucast: %04x\n",
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g_netstats.mld.ucast_query_received);
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Bad: %04x\n",
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g_netstats.mld.bad_query_received);
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return len;
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}
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/****************************************************************************
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* Name: netprocfs_reports_received
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****************************************************************************/
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static int netprocfs_reports_received(FAR struct netprocfs_file_s *netfile)
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{
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int len;
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len = snprintf(netfile->line, NET_LINELEN, " Reports:\n");
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Ver 1: %04x\n",
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g_netstats.mld.v1report_received);
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len += snprintf(&netfile->line[len], NET_LINELEN - len,
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" Ver 2: %04x\n",
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g_netstats.mld.v2report_received);
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return len;
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}
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/****************************************************************************
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* Name: netprocfs_done_received
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****************************************************************************/
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static int netprocfs_done_received(FAR struct netprocfs_file_s *netfile)
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{
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return snprintf(netfile->line, NET_LINELEN , " Done: %04x\n",
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g_netstats.mld.done_received);
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: netprocfs_read_mldstats
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*
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* Description:
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* Read and format MLD statistics.
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*
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* Input Parameters:
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* priv - A reference to the network procfs file structure
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* buffer - The user-provided buffer into which network status will be
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* returned.
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* bulen - The size in bytes of the user provided buffer.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is returned
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* on failure.
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*
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****************************************************************************/
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ssize_t netprocfs_read_mldstats(FAR struct netprocfs_file_s *priv,
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FAR char *buffer, size_t buflen)
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{
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return netprocfs_read_linegen(priv, buffer, buflen, g_mld_linegen, NSTAT_LINES);
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}
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#endif /* CONFIG_NET_ICMPv6 || CONFIG_NET_MLD */
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#endif /* !CONFIG_DISABLE_MOUNTPOINT && CONFIG_FS_PROCFS &&
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* !CONFIG_FS_PROCFS_EXCLUDE_NET */
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