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