479 lines
17 KiB
C
479 lines
17 KiB
C
/****************************************************************************
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* net/procfs/net_statistics.c
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*
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* Copyright (C) 2015 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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/****************************************************************************
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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_IPv4) || defined(CONFIG_NET_IPv6) || \
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defined(CONFIG_NET_TCP) || defined(CONFIG_NET_UDP) || \
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defined(CONFIG_NET_ICMP) || defined(CONFIG_NET_ICMPv6)
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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_header(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_received(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_dropped(FAR struct netprocfs_file_s *netfile);
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#ifdef CONFIG_NET_IPv4
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static int netprocfs_ipv4_dropped(FAR struct netprocfs_file_s *netfile);
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#endif /* CONFIG_NET_IPv4 */
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#ifdef CONFIG_NET_IPv6
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static int netprocfs_ipv6_dropped(FAR struct netprocfs_file_s *netfile);
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#endif /* CONFIG_NET_IPv4 */
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static int netprocfs_checksum(FAR struct netprocfs_file_s *netfile);
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#ifdef CONFIG_NET_TCP
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static int netprocfs_tcp_dropped_1(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_tcp_dropped_2(FAR struct netprocfs_file_s *netfile);
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#endif /* CONFIG_NET_TCP */
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static int netprocfs_prototype(FAR struct netprocfs_file_s *netfile);
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static int netprocfs_sent(FAR struct netprocfs_file_s *netfile);
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#ifdef CONFIG_NET_TCP
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static int netprocfs_retransmissions(FAR struct netprocfs_file_s *netfile);
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#endif /* CONFIG_NET_TCP */
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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_stat_linegen[] =
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{
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netprocfs_header,
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netprocfs_received,
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netprocfs_dropped,
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#ifdef CONFIG_NET_IPv4
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netprocfs_ipv4_dropped,
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#endif /* CONFIG_NET_IPv4 */
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#ifdef CONFIG_NET_IPv6
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netprocfs_ipv6_dropped,
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#endif /* CONFIG_NET_IPv4 */
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netprocfs_checksum,
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#ifdef CONFIG_NET_TCP
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netprocfs_tcp_dropped_1,
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netprocfs_tcp_dropped_2,
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#endif /* CONFIG_NET_TCP */
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netprocfs_prototype,
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netprocfs_sent
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#ifdef CONFIG_NET_TCP
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, netprocfs_retransmissions
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#endif /* CONFIG_NET_TCP */
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};
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#define NSTAT_LINES (sizeof(g_stat_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_header
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****************************************************************************/
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#ifdef CONFIG_NET_STATISTICS
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static int netprocfs_header(FAR struct netprocfs_file_s *netfile)
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{
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int len = 0;
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ");
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#ifdef CONFIG_NET_IPv4
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " IPv4");
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#endif
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#ifdef CONFIG_NET_IPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " IPv6");
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#endif
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#ifdef CONFIG_NET_TCP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " TCP");
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#endif
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#ifdef CONFIG_NET_UDP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " UDP");
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#endif
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#ifdef CONFIG_NET_ICMP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ICMP");
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#endif
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#ifdef CONFIG_NET_ICMPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ICMPv6");
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "\n");
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return len;
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}
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#endif /* CONFIG_NET_STATISTICS */
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/****************************************************************************
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* Name: netprocfs_received
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****************************************************************************/
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#ifdef CONFIG_NET_STATISTICS
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static int netprocfs_received(FAR struct netprocfs_file_s *netfile)
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{
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int len = 0;
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "Received ");
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#ifdef CONFIG_NET_IPv4
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv4.recv);
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#endif
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#ifdef CONFIG_NET_IPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv6.recv);
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#endif
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#ifdef CONFIG_NET_TCP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.tcp.recv);
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#endif
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#ifdef CONFIG_NET_UDP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.udp.recv);
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#endif
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#ifdef CONFIG_NET_ICMP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmp.recv);
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#endif
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#ifdef CONFIG_NET_ICMPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmpv6.recv);
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "\n");
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return len;
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}
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#endif /* CONFIG_NET_STATISTICS */
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/****************************************************************************
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* Name: netprocfs_dropped
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****************************************************************************/
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#ifdef CONFIG_NET_STATISTICS
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static int netprocfs_dropped(FAR struct netprocfs_file_s *netfile)
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{
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int len = 0;
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "Dropped ");
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#ifdef CONFIG_NET_IPv4
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv4.drop);
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#endif
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#ifdef CONFIG_NET_IPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv6.drop);
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#endif
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#ifdef CONFIG_NET_TCP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.tcp.drop);
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#endif
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#ifdef CONFIG_NET_UDP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.udp.drop);
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#endif
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#ifdef CONFIG_NET_ICMP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmp.drop);
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#endif
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#ifdef CONFIG_NET_ICMPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmpv6.drop);
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "\n");
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return len;
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}
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#endif /* CONFIG_NET_STATISTICS */
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/****************************************************************************
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* Name: netprocfs_ipv4_dropped
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****************************************************************************/
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#if defined(CONFIG_NET_STATISTICS) && defined(CONFIG_NET_IPv4)
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static int netprocfs_ipv4_dropped(FAR struct netprocfs_file_s *netfile)
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{
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return snprintf(netfile->line, NET_LINELEN,
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" IPv4 VHL: %04x Frg: %04x\n",
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g_netstats.ipv4.vhlerr, g_netstats.ipv4.fragerr);
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}
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#endif /* CONFIG_NET_STATISTICS && CONFIG_NET_IPv4 */
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/****************************************************************************
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* Name: netprocfs_ipv6_dropped
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****************************************************************************/
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#if defined(CONFIG_NET_STATISTICS) && defined(CONFIG_NET_IPv6)
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static int netprocfs_ipv6_dropped(FAR struct netprocfs_file_s *netfile)
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{
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return snprintf(netfile->line, NET_LINELEN,
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" IPv6 VHL: %04x\n",
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g_netstats.ipv6.vhlerr);
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}
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#endif /* CONFIG_NET_STATISTICS && CONFIG_NET_IPv6 */
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/****************************************************************************
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* Name: netprocfs_checksum
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****************************************************************************/
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#ifdef CONFIG_NET_STATISTICS
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static int netprocfs_checksum(FAR struct netprocfs_file_s *netfile)
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{
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int len = 0;
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " Checksum ");
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#ifdef CONFIG_NET_IPv4
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv4.chkerr);
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#endif
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#ifdef CONFIG_NET_IPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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#ifdef CONFIG_NET_TCP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.tcp.chkerr);
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#endif
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#ifdef CONFIG_NET_UDP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.udp.chkerr);
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#endif
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#ifdef CONFIG_NET_ICMP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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#ifdef CONFIG_NET_ICMPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "\n");
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return len;
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}
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#endif /* CONFIG_NET_STATISTICS */
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/****************************************************************************
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* Name: netprocfs_tcp_dropped_1
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****************************************************************************/
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#if defined(CONFIG_NET_STATISTICS) && defined(CONFIG_NET_TCP)
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static int netprocfs_tcp_dropped_1(FAR struct netprocfs_file_s *netfile)
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{
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return snprintf(netfile->line, NET_LINELEN,
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" TCP ACK: %04x SYN: %04x\n",
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g_netstats.tcp.ackerr, g_netstats.tcp.syndrop);
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}
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#endif /* CONFIG_NET_STATISTICS && CONFIG_NET_TCP */
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/****************************************************************************
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* Name: netprocfs_tcp_dropped_2
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****************************************************************************/
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#if defined(CONFIG_NET_STATISTICS) && defined(CONFIG_NET_TCP)
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static int netprocfs_tcp_dropped_2(FAR struct netprocfs_file_s *netfile)
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{
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return snprintf(netfile->line, NET_LINELEN,
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" RST: %04x %04x\n",
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g_netstats.tcp.rst, g_netstats.tcp.synrst);
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}
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#endif /* CONFIG_NET_STATISTICS && CONFIG_NET_TCP */
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/****************************************************************************
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* Name: netprocfs_prototype
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****************************************************************************/
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#ifdef CONFIG_NET_STATISTICS
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static int netprocfs_prototype(FAR struct netprocfs_file_s *netfile)
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{
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int len = 0;
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " Type ");
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#ifdef CONFIG_NET_IPv4
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv4.protoerr);
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#endif
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#ifdef CONFIG_NET_IPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv6.protoerr);
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#endif
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#ifdef CONFIG_NET_TCP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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#ifdef CONFIG_NET_UDP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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#ifdef CONFIG_NET_ICMP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmp.typeerr);
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#endif
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#ifdef CONFIG_NET_ICMPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmpv6.typeerr);
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "\n");
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return len;
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}
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#endif /* CONFIG_NET_STATISTICS */
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/****************************************************************************
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* Name: netprocfs_sent
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****************************************************************************/
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#ifdef CONFIG_NET_STATISTICS
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static int netprocfs_sent(FAR struct netprocfs_file_s *netfile)
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{
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int len = 0;
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "Sent ");
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#ifdef CONFIG_NET_IPv4
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv4.sent);
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#endif
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#ifdef CONFIG_NET_IPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.ipv6.sent);
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#endif
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#ifdef CONFIG_NET_TCP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.tcp.sent);
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#endif
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#ifdef CONFIG_NET_UDP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.udp.sent);
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#endif
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#ifdef CONFIG_NET_ICMP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmp.sent);
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#endif
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#ifdef CONFIG_NET_ICMPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.icmpv6.sent);
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "\n");
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return len;
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}
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#endif /* CONFIG_NET_STATISTICS */
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/****************************************************************************
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* Name: netprocfs_retransmissions
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****************************************************************************/
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#if defined(CONFIG_NET_STATISTICS) && defined(CONFIG_NET_TCP)
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static int netprocfs_retransmissions(FAR struct netprocfs_file_s *netfile)
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{
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int len = 0;
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " Rexmit ");
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#ifdef CONFIG_NET_IPv4
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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#ifdef CONFIG_NET_IPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " %04x",
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g_netstats.tcp.rexmit);
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#ifdef CONFIG_NET_UDP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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#ifdef CONFIG_NET_ICMP
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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#ifdef CONFIG_NET_ICMPv6
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len += snprintf(&netfile->line[len], NET_LINELEN - len, " ----");
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#endif
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len += snprintf(&netfile->line[len], NET_LINELEN - len, "\n");
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return len;
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}
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#endif /* CONFIG_NET_STATISTICS && CONFIG_NET_TCP */
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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_netstats
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*
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* Description:
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* Read and format network layer 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_netstats(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_stat_linegen, NSTAT_LINES);
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}
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#else
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ssize_t netprocfs_read_netstats(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 OK;
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}
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#endif /* CONFIG_NET_IPv4 || CONFIG_NET_IPv6 || CONFIG_NET_TCP || \
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* CONFIG_NET_UDP || CONFIG_NET_ICMP || CONFIG_NET_ICMPv6 */
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#endif /* !CONFIG_DISABLE_MOUNTPOINT && CONFIG_FS_PROCFS &&
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* !CONFIG_FS_PROCFS_EXCLUDE_NET */
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