2017-07-12 23:07:32 +02:00
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/****************************************************************************
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* net/local/local_sockif.c
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*
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2021-02-19 12:45:37 +01:00
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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2017-07-12 23:07:32 +02:00
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*
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2021-02-19 12:45:37 +01:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2017-07-12 23:07:32 +02:00
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*
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2021-02-19 12:45:37 +01:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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2017-07-12 23:07:32 +02:00
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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 <sys/socket.h>
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2017-07-14 18:57:38 +02:00
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#include <stdbool.h>
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2021-06-08 16:16:56 +02:00
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#include <stdio.h>
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2017-07-14 19:34:34 +02:00
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#include <string.h>
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2017-07-12 23:07:32 +02:00
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <netinet/in.h>
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2021-06-07 12:06:44 +02:00
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#include <nuttx/fs/ioctl.h>
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2017-07-12 23:07:32 +02:00
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#include <nuttx/net/net.h>
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2017-07-14 14:02:49 +02:00
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#include <socket/socket.h>
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2017-07-12 23:07:32 +02:00
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#include "local/local.h"
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#ifdef CONFIG_NET_LOCAL
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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2017-07-13 21:36:18 +02:00
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static int local_setup(FAR struct socket *psock, int protocol);
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static sockcaps_t local_sockcaps(FAR struct socket *psock);
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static void local_addref(FAR struct socket *psock);
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static int local_bind(FAR struct socket *psock,
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FAR const struct sockaddr *addr, socklen_t addrlen);
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2017-07-14 17:04:19 +02:00
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static int local_getsockname(FAR struct socket *psock,
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FAR struct sockaddr *addr, FAR socklen_t *addrlen);
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2018-07-19 15:16:30 +02:00
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static int local_getpeername(FAR struct socket *psock,
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FAR struct sockaddr *addr, FAR socklen_t *addrlen);
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2017-07-14 19:34:34 +02:00
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#ifndef CONFIG_NET_LOCAL_STREAM
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static int local_listen(FAR struct socket *psock, int backlog);
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#endif
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2017-07-13 21:36:18 +02:00
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static int local_connect(FAR struct socket *psock,
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FAR const struct sockaddr *addr, socklen_t addrlen);
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2017-07-14 19:34:34 +02:00
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#ifndef CONFIG_NET_LOCAL_STREAM
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static int local_accept(FAR struct socket *psock,
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FAR struct sockaddr *addr, FAR socklen_t *addrlen,
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FAR struct socket *newsock);
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#endif
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2017-07-14 18:57:38 +02:00
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static int local_poll(FAR struct socket *psock,
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FAR struct pollfd *fds, bool setup);
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2017-07-13 21:36:18 +02:00
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static int local_close(FAR struct socket *psock);
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2022-08-30 20:18:33 +02:00
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static int local_ioctl(FAR struct socket *psock,
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int cmd, unsigned long arg);
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2021-06-08 16:16:56 +02:00
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static int local_socketpair(FAR struct socket *psocks[2]);
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2022-11-22 14:18:12 +01:00
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#ifdef CONFIG_NET_SOCKOPTS
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static int local_getsockopt(FAR struct socket *psock, int level,
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int option, FAR void *value, FAR socklen_t *value_len);
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static int local_setsockopt(FAR struct socket *psock, int level,
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int option, FAR const void *value, socklen_t value_len);
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#endif
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2017-07-12 23:07:32 +02:00
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/****************************************************************************
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* Public Data
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****************************************************************************/
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const struct sock_intf_s g_local_sockif =
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{
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2017-07-14 17:04:19 +02:00
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local_setup, /* si_setup */
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local_sockcaps, /* si_sockcaps */
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local_addref, /* si_addref */
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local_bind, /* si_bind */
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local_getsockname, /* si_getsockname */
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2018-07-19 15:16:30 +02:00
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local_getpeername, /* si_getpeername */
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2017-07-14 17:04:19 +02:00
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local_listen, /* si_listen */
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local_connect, /* si_connect */
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local_accept, /* si_accept */
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2017-07-14 18:57:38 +02:00
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local_poll, /* si_poll */
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2020-12-01 07:55:16 +01:00
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local_sendmsg, /* si_sendmsg */
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local_recvmsg, /* si_recvmsg */
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2021-06-07 12:06:44 +02:00
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local_close, /* si_close */
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2021-06-08 16:16:56 +02:00
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local_ioctl, /* si_ioctl */
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local_socketpair /* si_socketpair */
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2022-11-22 14:18:12 +01:00
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#ifdef CONFIG_NET_SOCKOPTS
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, local_getsockopt /* si_getsockopt */
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, local_setsockopt /* si_setsockopt */
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#endif
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2017-07-12 23:07:32 +02:00
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: local_sockif_alloc
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*
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* Description:
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* Allocate and attach a local, Unix domain connection structure.
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*
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****************************************************************************/
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2017-07-14 20:36:54 +02:00
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#if defined(CONFIG_NET_LOCAL_STREAM) || defined(CONFIG_NET_LOCAL_DGRAM)
|
2017-07-12 23:07:32 +02:00
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static int local_sockif_alloc(FAR struct socket *psock)
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{
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/* Allocate the local connection structure */
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FAR struct local_conn_s *conn = local_alloc();
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if (conn == NULL)
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{
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/* Failed to reserve a connection structure */
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return -ENOMEM;
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}
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/* Set the reference count on the connection structure. This reference
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* count will be incremented only if the socket is dup'ed
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*/
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DEBUGASSERT(conn->lc_crefs == 0);
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conn->lc_crefs = 1;
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/* Save the pre-allocated connection in the socket structure */
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psock->s_conn = conn;
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2021-08-13 14:53:38 +02:00
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#if defined(CONFIG_NET_LOCAL_STREAM)
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conn->lc_psock = psock;
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#endif
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2017-07-12 23:07:32 +02:00
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return OK;
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}
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2017-07-14 19:34:34 +02:00
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#endif
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2017-07-12 23:07:32 +02:00
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/****************************************************************************
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* Name: local_setup
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*
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* Description:
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* Called for socket() to verify that the provided socket type and
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* protocol are usable by this address family. Perform any family-
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* specific socket fields.
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*
|
2018-03-13 16:52:27 +01:00
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* Input Parameters:
|
2020-06-15 10:23:25 +02:00
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* psock A pointer to a user allocated socket structure
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* to be initialized.
|
2017-07-12 23:07:32 +02:00
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* protocol (see sys/socket.h)
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*
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* Returned Value:
|
2018-09-14 14:55:45 +02:00
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* Zero (OK) is returned on success. Otherwise, a negated errno value is
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2017-07-12 23:07:32 +02:00
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* returned.
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*
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****************************************************************************/
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static int local_setup(FAR struct socket *psock, int protocol)
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{
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/* Allocate the appropriate connection structure. This reserves the
|
2021-01-15 10:01:00 +01:00
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* connection structure, it is unallocated at this point. It will not
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* actually be initialized until the socket is connected.
|
2017-07-12 23:07:32 +02:00
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*
|
2021-12-20 15:49:48 +01:00
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* REVISIT: Only SOCK_STREAM and SOCK_DGRAM are supported. Should also
|
2018-06-23 14:20:25 +02:00
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* support SOCK_RAW.
|
2017-07-12 23:07:32 +02:00
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*/
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switch (psock->s_type)
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{
|
2017-07-14 20:36:54 +02:00
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#ifdef CONFIG_NET_LOCAL_STREAM
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2017-07-12 23:07:32 +02:00
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case SOCK_STREAM:
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if (protocol != 0 && protocol != IPPROTO_TCP)
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{
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return -EPROTONOSUPPORT;
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}
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/* Allocate and attach the local connection structure */
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return local_sockif_alloc(psock);
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2017-07-14 20:36:54 +02:00
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#endif /* CONFIG_NET_LOCAL_STREAM */
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2017-07-12 23:07:32 +02:00
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2017-07-14 20:36:54 +02:00
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#ifdef CONFIG_NET_LOCAL_DGRAM
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2017-07-12 23:07:32 +02:00
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case SOCK_DGRAM:
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if (protocol != 0 && protocol != IPPROTO_UDP)
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{
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return -EPROTONOSUPPORT;
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}
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/* Allocate and attach the local connection structure */
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return local_sockif_alloc(psock);
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2017-07-14 20:36:54 +02:00
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#endif /* CONFIG_NET_LOCAL_DGRAM */
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2017-07-12 23:07:32 +02:00
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default:
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return -EPROTONOSUPPORT;
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}
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}
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|
2017-07-13 21:36:18 +02:00
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/****************************************************************************
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* Name: local_sockcaps
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*
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* Description:
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* Return the bit encoded capabilities of this socket.
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*
|
2018-03-13 16:52:27 +01:00
|
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* Input Parameters:
|
2017-07-13 21:36:18 +02:00
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|
* psock - Socket structure of the socket whose capabilities are being
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* queried.
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*
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* Returned Value:
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* The set of socket cababilities is returned.
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*
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****************************************************************************/
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static sockcaps_t local_sockcaps(FAR struct socket *psock)
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{
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return SOCKCAP_NONBLOCKING;
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}
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|
/****************************************************************************
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|
|
* Name: local_addref
|
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|
*
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* Description:
|
2020-02-22 19:31:14 +01:00
|
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|
* Increment the reference count on the underlying connection structure.
|
2017-07-13 21:36:18 +02:00
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*
|
2018-03-13 16:52:27 +01:00
|
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* Input Parameters:
|
2017-07-13 21:36:18 +02:00
|
|
|
* psock - Socket structure of the socket whose reference count will be
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* incremented.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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static void local_addref(FAR struct socket *psock)
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{
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FAR struct local_conn_s *conn;
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DEBUGASSERT(psock != NULL && psock->s_conn != NULL &&
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psock->s_domain == PF_LOCAL);
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conn = psock->s_conn;
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DEBUGASSERT(conn->lc_crefs > 0 && conn->lc_crefs < 255);
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conn->lc_crefs++;
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}
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|
2017-07-13 17:27:56 +02:00
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/****************************************************************************
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|
|
|
* Name: local_bind
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* local_bind() gives the socket 'psock' the local address 'addr'. 'addr'
|
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|
|
* is 'addrlen' bytes long. Traditionally, this is called "assigning a
|
|
|
|
* name to a socket." When a socket is created with socket(), it exists
|
|
|
|
* in a name space (address family) but has no name assigned.
|
|
|
|
*
|
2018-03-13 16:52:27 +01:00
|
|
|
* Input Parameters:
|
2017-07-13 17:27:56 +02:00
|
|
|
* psock Socket structure of the socket to bind
|
|
|
|
* addr Socket local address
|
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|
|
* addrlen Length of 'addr'
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|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* 0 on success; A negated errno value is returned on failure. See
|
|
|
|
* bind() for a list a appropriate error values.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_bind(FAR struct socket *psock,
|
|
|
|
FAR const struct sockaddr *addr, socklen_t addrlen)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
/* Verify that a valid address has been provided */
|
|
|
|
|
|
|
|
if (addr->sa_family != AF_LOCAL || addrlen < sizeof(sa_family_t))
|
|
|
|
{
|
2020-11-20 03:59:06 +01:00
|
|
|
nerr("ERROR: Invalid address length: %d < %zu\n",
|
2017-07-13 17:27:56 +02:00
|
|
|
addrlen, sizeof(sa_family_t));
|
|
|
|
return -EBADF;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Perform the binding depending on the protocol type */
|
|
|
|
|
|
|
|
switch (psock->s_type)
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|
|
|
{
|
|
|
|
/* Bind a local TCP/IP stream or datagram socket */
|
|
|
|
|
2017-10-25 15:23:48 +02:00
|
|
|
#if defined(CONFIG_NET_LOCAL_STREAM) || defined(CONFIG_NET_LOCAL_DGRAM)
|
2017-07-14 20:36:54 +02:00
|
|
|
#ifdef CONFIG_NET_LOCAL_STREAM
|
2017-07-13 17:27:56 +02:00
|
|
|
case SOCK_STREAM:
|
|
|
|
#endif
|
2017-07-14 20:36:54 +02:00
|
|
|
#ifdef CONFIG_NET_LOCAL_DGRAM
|
2017-07-13 17:27:56 +02:00
|
|
|
case SOCK_DGRAM:
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
/* Bind the Unix domain connection structure */
|
|
|
|
|
2017-07-14 14:02:49 +02:00
|
|
|
ret = psock_local_bind(psock, addr, addrlen);
|
2017-07-13 17:27:56 +02:00
|
|
|
}
|
|
|
|
break;
|
2017-10-25 15:23:48 +02:00
|
|
|
#endif /* CONFIG_NET_LOCAL_STREAM || CONFIG_NET_LOCAL_DGRAM */
|
2017-07-13 17:27:56 +02:00
|
|
|
|
|
|
|
default:
|
|
|
|
ret = -EBADF;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2017-07-14 17:04:19 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_getsockname
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* The local_getsockname() function retrieves the locally-bound name of
|
|
|
|
* the specified local socket, stores this address in the sockaddr
|
|
|
|
* structure pointed to by the 'addr' argument, and stores the length of
|
|
|
|
* this address in the object pointed to by the 'addrlen' argument.
|
|
|
|
*
|
|
|
|
* If the actual length of the address is greater than the length of the
|
|
|
|
* supplied sockaddr structure, the stored address will be truncated.
|
|
|
|
*
|
|
|
|
* If the socket has not been bound to a local name, the value stored in
|
|
|
|
* the object pointed to by address is unspecified.
|
|
|
|
*
|
2018-03-13 16:52:27 +01:00
|
|
|
* Input Parameters:
|
2017-07-14 17:04:19 +02:00
|
|
|
* psock Socket structure of the socket to be queried
|
|
|
|
* addr sockaddr structure to receive data [out]
|
|
|
|
* addrlen Length of sockaddr structure [in/out]
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* On success, 0 is returned, the 'addr' argument points to the address
|
|
|
|
* of the socket, and the 'addrlen' argument points to the length of the
|
|
|
|
* address. Otherwise, a negated errno value is returned. See
|
|
|
|
* getsockname() for the list of appropriate error numbers.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_getsockname(FAR struct socket *psock,
|
|
|
|
FAR struct sockaddr *addr,
|
|
|
|
FAR socklen_t *addrlen)
|
|
|
|
{
|
2017-07-14 19:34:34 +02:00
|
|
|
FAR struct sockaddr_un *unaddr = (FAR struct sockaddr_un *)addr;
|
2017-07-14 17:04:19 +02:00
|
|
|
FAR struct local_conn_s *conn;
|
|
|
|
|
|
|
|
DEBUGASSERT(psock != NULL && psock->s_conn != NULL &&
|
2022-12-18 07:55:44 +01:00
|
|
|
unaddr != NULL && addrlen != NULL);
|
2017-07-14 17:04:19 +02:00
|
|
|
|
|
|
|
if (*addrlen < sizeof(sa_family_t))
|
|
|
|
{
|
|
|
|
/* This is apparently not an error */
|
|
|
|
|
|
|
|
*addrlen = 0;
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
conn = (FAR struct local_conn_s *)psock->s_conn;
|
|
|
|
|
|
|
|
/* Save the address family */
|
|
|
|
|
|
|
|
unaddr->sun_family = AF_LOCAL;
|
|
|
|
if (*addrlen > sizeof(sa_family_t))
|
|
|
|
{
|
|
|
|
/* Now copy the address description. */
|
|
|
|
|
|
|
|
if (conn->lc_type == LOCAL_TYPE_UNNAMED)
|
|
|
|
{
|
|
|
|
/* Zero-length sun_path... This is an abstract Unix domain socket */
|
|
|
|
|
|
|
|
*addrlen = sizeof(sa_family_t);
|
|
|
|
}
|
2022-12-18 08:18:56 +01:00
|
|
|
else /* conn->lc_type = LOCAL_TYPE_PATHNAME */
|
2017-07-14 17:04:19 +02:00
|
|
|
{
|
2020-06-15 14:09:26 +02:00
|
|
|
/* Get the full length of the socket name (incl. null terminator) */
|
2017-07-14 19:34:34 +02:00
|
|
|
|
2022-12-18 08:18:56 +01:00
|
|
|
size_t namelen = strlen(conn->lc_path) + 1 +
|
|
|
|
(conn->lc_type == LOCAL_TYPE_ABSTRACT);
|
2017-07-14 19:34:34 +02:00
|
|
|
|
2017-07-14 17:04:19 +02:00
|
|
|
/* Get the available length in the user-provided buffer. */
|
|
|
|
|
2022-12-18 08:18:56 +01:00
|
|
|
size_t pathlen = *addrlen - sizeof(sa_family_t);
|
2017-07-14 17:04:19 +02:00
|
|
|
|
2017-07-14 19:34:34 +02:00
|
|
|
/* Clip the socket name size so that if fits in the user buffer */
|
|
|
|
|
|
|
|
if (pathlen < namelen)
|
|
|
|
{
|
|
|
|
namelen = pathlen;
|
|
|
|
}
|
|
|
|
|
2017-07-14 17:04:19 +02:00
|
|
|
/* Copy the path into the user address structure */
|
|
|
|
|
2022-12-18 08:18:56 +01:00
|
|
|
if (conn->lc_type == LOCAL_TYPE_ABSTRACT)
|
|
|
|
{
|
|
|
|
unaddr->sun_path[0] = '\0';
|
|
|
|
strlcpy(&unaddr->sun_path[1], conn->lc_path, namelen - 1);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
strlcpy(unaddr->sun_path, conn->lc_path, namelen);
|
|
|
|
}
|
2017-07-14 17:04:19 +02:00
|
|
|
|
|
|
|
*addrlen = sizeof(sa_family_t) + namelen;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
2018-07-19 15:16:30 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_getpeername
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* The local_getpeername() function retrieves the remote-connected name of
|
|
|
|
* the specified local socket, stores this address in the sockaddr
|
|
|
|
* structure pointed to by the 'addr' argument, and stores the length of
|
|
|
|
* this address in the object pointed to by the 'addrlen' argument.
|
|
|
|
*
|
|
|
|
* If the actual length of the address is greater than the length of the
|
|
|
|
* supplied sockaddr structure, the stored address will be truncated.
|
|
|
|
*
|
|
|
|
* If the socket has not been bound to a local name, the value stored in
|
|
|
|
* the object pointed to by address is unspecified.
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* psock Socket structure of the socket to be queried
|
|
|
|
* addr sockaddr structure to receive data [out]
|
|
|
|
* addrlen Length of sockaddr structure [in/out]
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* On success, 0 is returned, the 'addr' argument points to the address
|
|
|
|
* of the socket, and the 'addrlen' argument points to the length of the
|
|
|
|
* address. Otherwise, a negated errno value is returned. See
|
|
|
|
* getpeername() for the list of appropriate error numbers.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_getpeername(FAR struct socket *psock,
|
|
|
|
FAR struct sockaddr *addr,
|
|
|
|
FAR socklen_t *addrlen)
|
|
|
|
{
|
|
|
|
return local_getsockname(psock, addr, addrlen);
|
|
|
|
}
|
|
|
|
|
2022-11-22 14:18:12 +01:00
|
|
|
#ifdef CONFIG_NET_SOCKOPTS
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_getsockopt
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* local_getsockopt() retrieve the value for the option specified by the
|
|
|
|
* 'option' argument at the protocol level specified by the 'level'
|
|
|
|
* argument. If the size of the option value is greater than 'value_len',
|
|
|
|
* the value stored in the object pointed to by the 'value' argument will
|
|
|
|
* be silently truncated. Otherwise, the length pointed to by the
|
|
|
|
* 'value_len' argument will be modified to indicate the actual length
|
|
|
|
* of the 'value'.
|
|
|
|
*
|
|
|
|
* The 'level' argument specifies the protocol level of the option. To
|
|
|
|
* retrieve options at the socket level, specify the level argument as
|
|
|
|
* SOL_SOCKET.
|
|
|
|
*
|
|
|
|
* See <sys/socket.h> a complete list of values for the 'option' argument.
|
|
|
|
*
|
|
|
|
* Input Parameters:
|
|
|
|
* psock Socket structure of the socket to query
|
|
|
|
* level Protocol level to set the option
|
|
|
|
* option identifies the option to get
|
|
|
|
* value Points to the argument value
|
|
|
|
* value_len The length of the argument value
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_getsockopt(FAR struct socket *psock, int level, int option,
|
|
|
|
FAR void *value, FAR socklen_t *value_len)
|
|
|
|
{
|
|
|
|
DEBUGASSERT(psock != NULL && psock->s_conn != NULL &&
|
|
|
|
psock->s_domain == PF_LOCAL);
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_LOCAL_SCM
|
|
|
|
if (level == SOL_SOCKET && option == SO_PEERCRED)
|
|
|
|
{
|
|
|
|
FAR struct local_conn_s *conn = psock->s_conn;
|
|
|
|
if (*value_len != sizeof(struct ucred))
|
|
|
|
{
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(value, &conn->lc_peer->lc_cred, sizeof(struct ucred));
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
return -ENOPROTOOPT;
|
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_setsockopt
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* local_setsockopt() sets the option specified by the 'option' argument,
|
|
|
|
* at the protocol level specified by the 'level' argument, to the value
|
|
|
|
* pointed to by the 'value' argument for the usrsock connection.
|
|
|
|
*
|
|
|
|
* The 'level' argument specifies the protocol level of the option. To set
|
|
|
|
* options at the socket level, specify the level argument as SOL_SOCKET.
|
|
|
|
*
|
|
|
|
* See <sys/socket.h> a complete list of values for the 'option' argument.
|
|
|
|
*
|
|
|
|
* Input Parameters:
|
|
|
|
* psock Socket structure of the socket to query
|
|
|
|
* level Protocol level to set the option
|
|
|
|
* option identifies the option to set
|
|
|
|
* value Points to the argument value
|
|
|
|
* value_len The length of the argument value
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_setsockopt(FAR struct socket *psock, int level, int option,
|
|
|
|
FAR const void *value, socklen_t value_len)
|
|
|
|
{
|
|
|
|
return -ENOPROTOOPT;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
2017-07-14 19:34:34 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_listen
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* To accept connections, a socket is first created with psock_socket(), a
|
|
|
|
* willingness to accept incoming connections and a queue limit for
|
|
|
|
* incoming connections are specified with psock_listen(), and then the
|
|
|
|
* connections are accepted with psock_accept(). For the case of local
|
|
|
|
* unix sockets, psock_listen() calls this function. The psock_listen()
|
|
|
|
* call applies only to sockets of type SOCK_STREAM or SOCK_SEQPACKET.
|
|
|
|
*
|
2018-03-13 16:52:27 +01:00
|
|
|
* Input Parameters:
|
2017-07-14 19:34:34 +02:00
|
|
|
* psock Reference to an internal, boound socket structure.
|
|
|
|
* backlog The maximum length the queue of pending connections may grow.
|
|
|
|
* If a connection request arrives with the queue full, the client
|
|
|
|
* may receive an error with an indication of ECONNREFUSED or,
|
|
|
|
* if the underlying protocol supports retransmission, the request
|
|
|
|
* may be ignored so that retries succeed.
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* On success, zero is returned. On error, a negated errno value is
|
2020-12-13 14:58:02 +01:00
|
|
|
* returned. See listen() for the set of appropriate error values.
|
2017-07-14 19:34:34 +02:00
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifndef CONFIG_NET_LOCAL_STREAM
|
|
|
|
int local_listen(FAR struct socket *psock, int backlog)
|
|
|
|
{
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2017-07-13 17:27:56 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_connect
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* local_connect() connects the local socket referred to by the structure
|
|
|
|
* 'psock' to the address specified by 'addr'. The addrlen argument
|
|
|
|
* specifies the size of 'addr'. The format of the address in 'addr' is
|
|
|
|
* determined by the address space of the socket 'psock'.
|
|
|
|
*
|
|
|
|
* If the socket 'psock' is of type SOCK_DGRAM then 'addr' is the address
|
|
|
|
* to which datagrams are sent by default, and the only address from which
|
|
|
|
* datagrams are received. If the socket is of type SOCK_STREAM or
|
|
|
|
* SOCK_SEQPACKET, this call attempts to make a connection to the socket
|
|
|
|
* that is bound to the address specified by 'addr'.
|
|
|
|
*
|
|
|
|
* Generally, connection-based protocol sockets may successfully
|
|
|
|
* local_connect() only once; connectionless protocol sockets may use
|
|
|
|
* local_connect() multiple times to change their association.
|
|
|
|
* Connectionless sockets may dissolve the association by connecting to
|
|
|
|
* an address with the sa_family member of sockaddr set to AF_UNSPEC.
|
|
|
|
*
|
2018-03-13 16:52:27 +01:00
|
|
|
* Input Parameters:
|
2017-07-13 17:27:56 +02:00
|
|
|
* psock Pointer to a socket structure initialized by psock_socket()
|
|
|
|
* addr Server address (form depends on type of socket)
|
|
|
|
* addrlen Length of actual 'addr'
|
|
|
|
*
|
|
|
|
* Returned Value:
|
2020-02-23 09:50:23 +01:00
|
|
|
* 0 on success; a negated errno value on failure. See connect() for the
|
2017-07-13 17:27:56 +02:00
|
|
|
* list of appropriate errno values to be returned.
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_connect(FAR struct socket *psock,
|
|
|
|
FAR const struct sockaddr *addr, socklen_t addrlen)
|
|
|
|
{
|
|
|
|
/* Verify that a valid address has been provided */
|
|
|
|
|
|
|
|
if (addr->sa_family != AF_LOCAL || addrlen < sizeof(sa_family_t))
|
|
|
|
{
|
|
|
|
return -EBADF;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Perform the connection depending on the protocol type */
|
|
|
|
|
|
|
|
switch (psock->s_type)
|
|
|
|
{
|
2017-07-14 20:36:54 +02:00
|
|
|
#ifdef CONFIG_NET_LOCAL_STREAM
|
2017-07-13 17:27:56 +02:00
|
|
|
case SOCK_STREAM:
|
|
|
|
{
|
2022-02-08 06:18:01 +01:00
|
|
|
FAR struct socket_conn_s *conn = psock->s_conn;
|
|
|
|
|
2017-07-13 17:27:56 +02:00
|
|
|
/* Verify that the socket is not already connected */
|
|
|
|
|
2022-02-08 06:18:01 +01:00
|
|
|
if (_SS_ISCONNECTED(conn->s_flags))
|
2017-07-13 17:27:56 +02:00
|
|
|
{
|
|
|
|
return -EISCONN;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* It's not... Connect to the local Unix domain server */
|
|
|
|
|
|
|
|
return psock_local_connect(psock, addr);
|
|
|
|
}
|
|
|
|
break;
|
2017-07-14 20:36:54 +02:00
|
|
|
#endif /* CONFIG_NET_LOCAL_STREAM */
|
2017-07-13 17:27:56 +02:00
|
|
|
|
2017-07-14 20:36:54 +02:00
|
|
|
#ifdef CONFIG_NET_LOCAL_DGRAM
|
2017-07-13 17:27:56 +02:00
|
|
|
case SOCK_DGRAM:
|
|
|
|
{
|
|
|
|
/* Perform the datagram connection logic */
|
2019-10-25 19:31:42 +02:00
|
|
|
|
2017-07-14 20:36:54 +02:00
|
|
|
#warning Missing logic
|
2019-03-11 19:48:17 +01:00
|
|
|
|
2017-07-14 20:36:54 +02:00
|
|
|
return -ENOSYS;
|
2017-07-13 17:27:56 +02:00
|
|
|
}
|
|
|
|
break;
|
2017-07-14 20:36:54 +02:00
|
|
|
#endif /* CONFIG_NET_LOCAL_DGRAM */
|
2017-07-13 17:27:56 +02:00
|
|
|
|
|
|
|
default:
|
|
|
|
return -EBADF;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-07-14 19:34:34 +02:00
|
|
|
/****************************************************************************
|
2018-02-01 19:17:03 +01:00
|
|
|
* Name: local_accept
|
2017-07-14 19:34:34 +02:00
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* The pkt_accept function is used with connection-based socket types
|
|
|
|
* (SOCK_STREAM, SOCK_SEQPACKET and SOCK_RDM). It extracts the first
|
|
|
|
* connection request on the queue of pending connections, creates a new
|
|
|
|
* connected socket with mostly the same properties as 'sockfd', and
|
|
|
|
* allocates a new socket descriptor for the socket, which is returned. The
|
|
|
|
* newly created socket is no longer in the listening state. The original
|
|
|
|
* socket 'sockfd' is unaffected by this call. Per file descriptor flags
|
|
|
|
* are not inherited across an pkt_accept.
|
|
|
|
*
|
|
|
|
* The 'sockfd' argument is a socket descriptor that has been created with
|
|
|
|
* socket(), bound to a local address with bind(), and is listening for
|
|
|
|
* connections after a call to listen().
|
|
|
|
*
|
|
|
|
* On return, the 'addr' structure is filled in with the address of the
|
|
|
|
* connecting entity. The 'addrlen' argument initially contains the size
|
|
|
|
* of the structure pointed to by 'addr'; on return it will contain the
|
|
|
|
* actual length of the address returned.
|
|
|
|
*
|
|
|
|
* If no pending connections are present on the queue, and the socket is
|
|
|
|
* not marked as non-blocking, pkt_accept blocks the caller until a
|
|
|
|
* connection is present. If the socket is marked non-blocking and no
|
|
|
|
* pending connections are present on the queue, pkt_accept returns
|
|
|
|
* EAGAIN.
|
|
|
|
*
|
2018-03-13 16:52:27 +01:00
|
|
|
* Input Parameters:
|
2017-07-14 19:34:34 +02:00
|
|
|
* psock Reference to the listening socket structure
|
|
|
|
* addr Receives the address of the connecting client
|
2020-06-15 10:23:25 +02:00
|
|
|
* addrlen Input: allocated size of 'addr',
|
|
|
|
* Return: returned size of 'addr'
|
2017-07-14 19:34:34 +02:00
|
|
|
* newsock Location to return the accepted socket information.
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* Returns 0 (OK) on success. On failure, it returns a negated errno
|
2020-12-13 14:58:02 +01:00
|
|
|
* value. See accept() for a description of the appropriate error value.
|
2017-07-14 19:34:34 +02:00
|
|
|
*
|
2017-08-31 15:23:19 +02:00
|
|
|
* Assumptions:
|
|
|
|
* The network is locked.
|
|
|
|
*
|
2017-07-14 19:34:34 +02:00
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifndef CONFIG_NET_LOCAL_STREAM
|
|
|
|
static int local_accept(FAR struct socket *psock, FAR struct sockaddr *addr,
|
|
|
|
FAR socklen_t *addrlen, FAR struct socket *newsock)
|
|
|
|
{
|
|
|
|
return -EAFNOSUPPORT;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2017-07-14 18:57:38 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_poll
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* The standard poll() operation redirects operations on socket descriptors
|
|
|
|
* to local_poll which, indiectly, calls to function.
|
|
|
|
*
|
|
|
|
* Input Parameters:
|
|
|
|
* psock - An instance of the internal socket structure.
|
|
|
|
* fds - The structure describing the events to be monitored, OR NULL if
|
|
|
|
* this is a request to stop monitoring events.
|
|
|
|
* setup - true: Setup up the poll; false: Teardown the poll
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* 0: Success; Negated errno on failure
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_poll(FAR struct socket *psock, FAR struct pollfd *fds,
|
|
|
|
bool setup)
|
|
|
|
{
|
|
|
|
/* Check if we are setting up or tearing down the poll */
|
|
|
|
|
|
|
|
if (setup)
|
|
|
|
{
|
|
|
|
/* Perform the TCP/IP poll() setup */
|
|
|
|
|
|
|
|
return local_pollsetup(psock, fds);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* Perform the TCP/IP poll() teardown */
|
|
|
|
|
2017-07-22 17:00:36 +02:00
|
|
|
return local_pollteardown(psock, fds);
|
2017-07-14 18:57:38 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-07-13 20:15:15 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_close
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Performs the close operation on a local, Unix socket instance
|
|
|
|
*
|
2018-03-13 16:52:27 +01:00
|
|
|
* Input Parameters:
|
2017-07-13 20:15:15 +02:00
|
|
|
* psock Socket instance
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* 0 on success; a negated errno value is returned on any failure.
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_close(FAR struct socket *psock)
|
|
|
|
{
|
|
|
|
/* Perform some pre-close operations for the local address type */
|
|
|
|
|
|
|
|
switch (psock->s_type)
|
|
|
|
{
|
2017-07-14 20:36:54 +02:00
|
|
|
#if defined(CONFIG_NET_LOCAL_STREAM) || defined(CONFIG_NET_LOCAL_DGRAM)
|
|
|
|
#ifdef CONFIG_NET_LOCAL_STREAM
|
2017-07-13 20:15:15 +02:00
|
|
|
case SOCK_STREAM:
|
|
|
|
#endif
|
2017-07-14 20:36:54 +02:00
|
|
|
#ifdef CONFIG_NET_LOCAL_DGRAM
|
2017-07-13 20:15:15 +02:00
|
|
|
case SOCK_DGRAM:
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
FAR struct local_conn_s *conn = psock->s_conn;
|
|
|
|
|
|
|
|
/* Is this the last reference to the connection structure (there
|
|
|
|
* could be more if the socket was dup'ed).
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (conn->lc_crefs <= 1)
|
|
|
|
{
|
|
|
|
conn->lc_crefs = 0;
|
|
|
|
local_release(conn);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* No.. Just decrement the reference count */
|
|
|
|
|
|
|
|
conn->lc_crefs--;
|
|
|
|
}
|
|
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
2017-10-25 15:23:48 +02:00
|
|
|
#endif /* CONFIG_NET_LOCAL_STREAM || CONFIG_NET_LOCAL_DGRAM */
|
2017-07-13 20:15:15 +02:00
|
|
|
|
|
|
|
default:
|
|
|
|
return -EBADF;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-06-07 12:06:44 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_ioctl
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* This function performs local device specific operations.
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* psock A reference to the socket structure of the socket
|
|
|
|
* cmd The ioctl command
|
|
|
|
* arg The argument of the ioctl cmd
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2022-08-30 20:18:33 +02:00
|
|
|
static int local_ioctl(FAR struct socket *psock, int cmd, unsigned long arg)
|
2021-06-07 12:06:44 +02:00
|
|
|
{
|
|
|
|
FAR struct local_conn_s *conn;
|
|
|
|
int ret = OK;
|
|
|
|
|
|
|
|
conn = (FAR struct local_conn_s *)psock->s_conn;
|
|
|
|
|
|
|
|
switch (cmd)
|
|
|
|
{
|
2021-12-08 16:27:39 +01:00
|
|
|
case FIONBIO:
|
|
|
|
if (conn->lc_infile.f_inode != NULL)
|
|
|
|
{
|
|
|
|
ret = file_ioctl(&conn->lc_infile, cmd, arg);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ret >= 0 && conn->lc_outfile.f_inode != NULL)
|
|
|
|
{
|
|
|
|
ret = file_ioctl(&conn->lc_outfile, cmd, arg);
|
|
|
|
}
|
|
|
|
break;
|
2021-06-07 12:06:44 +02:00
|
|
|
case FIONREAD:
|
|
|
|
if (conn->lc_infile.f_inode != NULL)
|
|
|
|
{
|
|
|
|
ret = file_ioctl(&conn->lc_infile, cmd, arg);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
ret = -ENOTCONN;
|
|
|
|
}
|
|
|
|
break;
|
2022-11-24 08:26:27 +01:00
|
|
|
case FIONWRITE:
|
2021-08-12 08:48:05 +02:00
|
|
|
case FIONSPACE:
|
|
|
|
if (conn->lc_outfile.f_inode != NULL)
|
|
|
|
{
|
|
|
|
ret = file_ioctl(&conn->lc_outfile, cmd, arg);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
ret = -ENOTCONN;
|
|
|
|
}
|
|
|
|
break;
|
2021-06-07 12:06:44 +02:00
|
|
|
default:
|
|
|
|
ret = -ENOTTY;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2021-06-08 16:16:56 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Name: local_socketpair
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Create a pair of connected sockets between psocks[2]
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* psocks A reference to the socket structure of the socket pair
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int local_socketpair(FAR struct socket *psocks[2])
|
|
|
|
{
|
|
|
|
#if defined(CONFIG_NET_LOCAL_STREAM) || defined(CONFIG_NET_LOCAL_DGRAM)
|
|
|
|
FAR struct local_conn_s *conns[2];
|
|
|
|
#ifdef CONFIG_NET_LOCAL_STREAM
|
|
|
|
bool nonblock;
|
|
|
|
int ret;
|
|
|
|
#endif /* CONFIG_NET_LOCAL_STREAM */
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < 2; i++)
|
|
|
|
{
|
|
|
|
conns[i] = psocks[i]->s_conn;
|
|
|
|
snprintf(conns[i]->lc_path,
|
|
|
|
sizeof(conns[i]->lc_path), "socketpair%p", psocks[0]);
|
|
|
|
|
|
|
|
conns[i]->lc_proto = psocks[i]->s_type;
|
|
|
|
conns[i]->lc_type = LOCAL_TYPE_PATHNAME;
|
|
|
|
conns[i]->lc_state = LOCAL_STATE_BOUND;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_LOCAL_DGRAM
|
|
|
|
#ifdef CONFIG_NET_LOCAL_STREAM
|
|
|
|
if (psocks[0]->s_type == SOCK_DGRAM)
|
|
|
|
#endif /* CONFIG_NET_LOCAL_STREAM */
|
|
|
|
{
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_NET_LOCAL_DGRAM */
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_LOCAL_STREAM
|
|
|
|
conns[0]->lc_instance_id = conns[1]->lc_instance_id
|
|
|
|
= local_generate_instance_id();
|
|
|
|
|
|
|
|
/* Create the FIFOs needed for the connection */
|
|
|
|
|
|
|
|
ret = local_create_fifos(conns[0]);
|
|
|
|
if (ret < 0)
|
|
|
|
{
|
|
|
|
goto errout;
|
|
|
|
}
|
|
|
|
|
2022-02-08 06:18:01 +01:00
|
|
|
nonblock = _SS_ISNONBLOCK(conns[0]->lc_conn.s_flags);
|
2021-06-08 16:16:56 +02:00
|
|
|
|
|
|
|
/* Open the client-side write-only FIFO. */
|
|
|
|
|
|
|
|
ret = local_open_client_tx(conns[0], nonblock);
|
|
|
|
if (ret < 0)
|
|
|
|
{
|
|
|
|
goto errout;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Open the server-side read-only FIFO. */
|
|
|
|
|
|
|
|
ret = local_open_server_rx(conns[1], nonblock);
|
|
|
|
if (ret < 0)
|
|
|
|
{
|
|
|
|
goto errout;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Open the server-side write-only FIFO. */
|
|
|
|
|
|
|
|
ret = local_open_server_tx(conns[1], nonblock);
|
|
|
|
if (ret < 0)
|
|
|
|
{
|
|
|
|
goto errout;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Open the client-side read-only FIFO */
|
|
|
|
|
|
|
|
ret = local_open_client_rx(conns[0], nonblock);
|
|
|
|
if (ret < 0)
|
|
|
|
{
|
|
|
|
goto errout;
|
|
|
|
}
|
|
|
|
|
|
|
|
conns[0]->lc_state = conns[1]->lc_state
|
|
|
|
= LOCAL_STATE_CONNECTED;
|
|
|
|
return OK;
|
|
|
|
|
|
|
|
errout:
|
|
|
|
local_release_fifos(conns[0]);
|
|
|
|
return ret;
|
|
|
|
#endif /* CONFIG_NET_LOCAL_STREAM */
|
|
|
|
#else
|
|
|
|
return -EOPNOTSUPP;
|
|
|
|
#endif /* CONFIG_NET_LOCAL_STREAM || CONFIG_NET_LOCAL_DGRAM */
|
|
|
|
}
|
|
|
|
|
2017-07-12 23:07:32 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Public Functions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#endif /* CONFIG_NET_LOCAL */
|