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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/09/08 06:48:45 UTC
[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a diff in pull request #7004: net/procfs: add tcp profs support (IPv4 only)
xiaoxiang781216 commented on code in PR #7004:
URL: https://github.com/apache/incubator-nuttx/pull/7004#discussion_r965563936
##########
net/procfs/net_tcp.c:
##########
@@ -0,0 +1,172 @@
+/****************************************************************************
+ * net/procfs/net_tcp.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <debug.h>
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <nuttx/net/netstats.h>
+
+#include "procfs/procfs.h"
+#include "tcp/tcp.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#if defined(CONFIG_NET_TCP) && defined(CONFIG_NET_IPv4)
+
+#define TCP_LINELEN 120
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: netprocfs_read_tcpstats
+ *
+ * Description:
+ * Read and format TCP 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_tcpstats(FAR struct netprocfs_file_s *priv,
+ FAR char *buffer, size_t buflen)
+{
+ FAR struct tcp_conn_s *conn = NULL;
+ char remote[INET_ADDRSTRLEN + 1];
+ char local[INET_ADDRSTRLEN + 1];
+ struct in_addr laddr;
+ struct in_addr raddr;
+ int skip = 1;
+ int len = 0;
+
+ net_lock();
+
+ if (tcp_nextconn(NULL) == NULL)
+ {
+ goto end_lock;
+ }
+
+ if (priv->offset == 0)
+ {
+ len = snprintf(buffer, buflen, "TCP sl "
+ "local_address "
+ "remote_address "
+ "st flg ref tmr uack nrt "
+#if CONFIG_NET_SEND_BUFSIZE > 0
+ "txsz "
+#endif
+ "rxsz"
+#ifdef CONFIG_NET_IPv6
+ " (IPv4)"
+#endif /* CONFIG_NET_IPv6 */
+ "\n");
+ priv->offset = 1;
+ }
+
+ local[INET_ADDRSTRLEN] = '\0';
+ remote[INET_ADDRSTRLEN] = '\0';
+
+ while ((conn = tcp_nextconn(conn)) != NULL)
+ {
+#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
+ if (conn->domain != PF_INET)
+ {
+ continue;
+ }
+#endif /* CONFIG_NET_IPv4 && CONFIG_NET_IPv6 */
+
+ if (++skip <= priv->offset)
+ {
+ continue;
+ }
+
+ if (buflen - len < TCP_LINELEN)
+ {
+ break;
+ }
+
+ laddr.s_addr = conn->u.ipv4.laddr;
+ raddr.s_addr = conn->u.ipv4.raddr;
+
+ len += snprintf(buffer + len, buflen - len,
+ " %2" PRIu8 ": %16s:%6" PRIu16 " %16s:%6" PRIu16,
+ priv->offset++,
+ inet_ntoa_r(laddr, local, INET_ADDRSTRLEN),
+ ntohs(conn->lport),
+ inet_ntoa_r(raddr, remote, INET_ADDRSTRLEN),
Review Comment:
ditto
##########
net/procfs/net_tcp.c:
##########
@@ -0,0 +1,172 @@
+/****************************************************************************
+ * net/procfs/net_tcp.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <debug.h>
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <nuttx/net/netstats.h>
+
+#include "procfs/procfs.h"
+#include "tcp/tcp.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#if defined(CONFIG_NET_TCP) && defined(CONFIG_NET_IPv4)
+
+#define TCP_LINELEN 120
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: netprocfs_read_tcpstats
+ *
+ * Description:
+ * Read and format TCP 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_tcpstats(FAR struct netprocfs_file_s *priv,
+ FAR char *buffer, size_t buflen)
+{
+ FAR struct tcp_conn_s *conn = NULL;
+ char remote[INET_ADDRSTRLEN + 1];
+ char local[INET_ADDRSTRLEN + 1];
+ struct in_addr laddr;
+ struct in_addr raddr;
+ int skip = 1;
+ int len = 0;
+
+ net_lock();
+
+ if (tcp_nextconn(NULL) == NULL)
+ {
+ goto end_lock;
+ }
+
+ if (priv->offset == 0)
+ {
+ len = snprintf(buffer, buflen, "TCP sl "
+ "local_address "
+ "remote_address "
+ "st flg ref tmr uack nrt "
+#if CONFIG_NET_SEND_BUFSIZE > 0
+ "txsz "
+#endif
+ "rxsz"
+#ifdef CONFIG_NET_IPv6
+ " (IPv4)"
+#endif /* CONFIG_NET_IPv6 */
+ "\n");
+ priv->offset = 1;
+ }
+
+ local[INET_ADDRSTRLEN] = '\0';
+ remote[INET_ADDRSTRLEN] = '\0';
+
+ while ((conn = tcp_nextconn(conn)) != NULL)
+ {
+#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
+ if (conn->domain != PF_INET)
+ {
+ continue;
+ }
+#endif /* CONFIG_NET_IPv4 && CONFIG_NET_IPv6 */
+
+ if (++skip <= priv->offset)
+ {
+ continue;
+ }
+
+ if (buflen - len < TCP_LINELEN)
+ {
+ break;
+ }
+
+ laddr.s_addr = conn->u.ipv4.laddr;
+ raddr.s_addr = conn->u.ipv4.raddr;
+
+ len += snprintf(buffer + len, buflen - len,
+ " %2" PRIu8 ": %16s:%6" PRIu16 " %16s:%6" PRIu16,
+ priv->offset++,
+ inet_ntoa_r(laddr, local, INET_ADDRSTRLEN),
Review Comment:
let's call inet_ntop to support both ipv4 and ipv6
##########
net/procfs/Make.defs:
##########
@@ -33,6 +33,11 @@ ifeq ($(CONFIG_NET_STATISTICS),y)
ifeq ($(CONFIG_NET_MLD),y)
NET_CSRCS += net_mld.c
endif
+ifeq ($(CONFIG_NET_IPv4),y)
Review Comment:
remove let's support ipv6 too
##########
net/procfs/net_udp.c:
##########
@@ -0,0 +1,157 @@
+/****************************************************************************
+ * net/procfs/net_udp.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <debug.h>
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <nuttx/net/netstats.h>
+
+#include "procfs/procfs.h"
+#include "udp/udp.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#if defined(CONFIG_NET_UDP) && defined(CONFIG_NET_IPv4)
+
+#define UDP_LINELEN 120
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: netprocfs_read_udpstats
+ *
+ * Description:
+ * Read and format TCP 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_udpstats(FAR struct netprocfs_file_s *priv,
+ FAR char *buffer, size_t buflen)
+{
+ FAR struct udp_conn_s *conn = NULL;
+ char remote[INET_ADDRSTRLEN + 1];
+ char local[INET_ADDRSTRLEN + 1];
+ struct in_addr laddr;
+ struct in_addr raddr;
+ int skip = 1;
+ int len = 0;
+
+ net_lock();
+
+ if (udp_nextconn(NULL) == NULL)
+ {
+ goto end_lock;
+ }
+
+ if (priv->offset == 0)
+ {
+ len = snprintf(buffer, buflen, "UDP sl "
+ "local_address "
+ "remote_address "
+ " flg "
+#if CONFIG_NET_SEND_BUFSIZE > 0
+ "txsz "
+#endif
+ "rxsz"
+#ifdef CONFIG_NET_IPv6
+ " (IPv4)"
Review Comment:
remove, let's support both ipv4 and ipv6
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