14202651b2
libuvtestcase: TEST_IMPL(udp_connect) { RETURN_SKIP( "IBMi PASE's UDP connection can not be disconnected with AF_UNSPEC."); uv_udp_send_t req; struct sockaddr_in ext_addr; struct sockaddr_in tmp_addr; int r; int addrlen; close_cb_called = 0; cl_send_cb_called = 0; sv_recv_cb_called = 0; ASSERT(0 == uv_ip4_addr("[0.0.0.0](http://0.0.0.0/)", TEST_PORT, &lo_addr)); r = uv_udp_init(uv_default_loop(), &server); ASSERT(r == 0); r = uv_udp_bind(&server, (const struct sockaddr*) &lo_addr, 0); ASSERT(r == 0); r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb); ASSERT(r == 0); r = uv_udp_init(uv_default_loop(), &client); ASSERT(r == 0); buf = uv_buf_init("EXIT", 4); /* connect() to INADDR_ANY fails on Windows wih WSAEADDRNOTAVAIL */ ASSERT_EQ(0, uv_ip4_addr("[0.0.0.0](http://0.0.0.0/)", TEST_PORT, &tmp_addr)); r = uv_udp_connect(&client, (const struct sockaddr*) &tmp_addr); ASSERT_EQ(r, UV_EADDRNOTAVAIL); ASSERT_EQ(r, 0); r = uv_udp_connect(&client, NULL); ASSERT_EQ(r, 0); ASSERT(0 == uv_ip4_addr("[8.8.8.8](http://8.8.8.8/)", TEST_PORT, &ext_addr)); ASSERT(0 == uv_ip4_addr("[127.0.0.1](http://127.0.0.1/)", TEST_PORT, &lo_addr)); r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); ASSERT(r == 0); r = uv_udp_connect(&client, (const struct sockaddr*) &ext_addr); ASSERT(r == UV_EISCONN); addrlen = sizeof(tmp_addr); r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); ASSERT(r == 0); /* To send messages in connected UDP sockets addr must be NULL */ r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); ASSERT(r == UV_EISCONN); r = uv_udp_try_send(&client, &buf, 1, NULL); ASSERT(r == 4); r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &ext_addr); ASSERT(r == UV_EISCONN); r = uv_udp_connect(&client, NULL); ASSERT(r == 0); r = uv_udp_connect(&client, NULL); ASSERT(r == UV_ENOTCONN); addrlen = sizeof(tmp_addr); r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); ASSERT(r == UV_ENOTCONN); /* To send messages in disconnected UDP sockets addr must be set */ r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); ASSERT(r == 4); r = uv_udp_try_send(&client, &buf, 1, NULL); ASSERT(r == UV_EDESTADDRREQ); r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); ASSERT(r == 0); r = uv_udp_send(&req, &client, &buf, 1, (const struct sockaddr*) &lo_addr, cl_send_cb); ASSERT(r == UV_EISCONN); r = uv_udp_send(&req, &client, &buf, 1, NULL, cl_send_cb); ASSERT(r == 0); uv_run(uv_default_loop(), UV_RUN_DEFAULT); ASSERT(close_cb_called == 2); ASSERT(sv_recv_cb_called == 4); ASSERT(cl_send_cb_called == 2); ASSERT(client.send_queue_size == 0); ASSERT(server.send_queue_size == 0); MAKE_VALGRIND_HAPPY(); return 0; } Signed-off-by: wangchen <wangchen41@xiaomi.com>
2445 lines
69 KiB
C
2445 lines
69 KiB
C
/****************************************************************************
|
|
* net/inet/inet_sockif.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>
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#include <sys/socket.h>
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#include <stdbool.h>
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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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|
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#include <nuttx/net/net.h>
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#include <nuttx/net/tcp.h>
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#include <nuttx/kmalloc.h>
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|
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#include "tcp/tcp.h"
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#include "udp/udp.h"
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#include "icmp/icmp.h"
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#include "icmpv6/icmpv6.h"
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#include "sixlowpan/sixlowpan.h"
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#include "socket/socket.h"
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#include "inet/inet.h"
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|
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#ifdef HAVE_INET_SOCKETS
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|
|
|
/****************************************************************************
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|
* Private Type Definitions
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|
****************************************************************************/
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|
|
|
union sockaddr_u
|
|
{
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struct sockaddr addr;
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|
struct sockaddr_in inaddr;
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struct sockaddr_in6 in6addr;
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};
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|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
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|
|
|
#if defined(NET_UDP_HAVE_STACK) || defined(NET_TCP_HAVE_STACK)
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|
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static int inet_setup(FAR struct socket *psock);
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static sockcaps_t inet_sockcaps(FAR struct socket *psock);
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static void inet_addref(FAR struct socket *psock);
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static int inet_bind(FAR struct socket *psock,
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FAR const struct sockaddr *addr, socklen_t addrlen);
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static int inet_getsockname(FAR struct socket *psock,
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FAR struct sockaddr *addr, FAR socklen_t *addrlen);
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static int inet_getpeername(FAR struct socket *psock,
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FAR struct sockaddr *addr, FAR socklen_t *addrlen);
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static int inet_listen(FAR struct socket *psock, int backlog);
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static int inet_connect(FAR struct socket *psock,
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FAR const struct sockaddr *addr, socklen_t addrlen);
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static int inet_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, int flags);
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static int inet_poll(FAR struct socket *psock,
|
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FAR struct pollfd *fds, bool setup);
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static ssize_t inet_send(FAR struct socket *psock, FAR const void *buf,
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size_t len, int flags);
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static ssize_t inet_sendto(FAR struct socket *psock, FAR const void *buf,
|
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size_t len, int flags, FAR const struct sockaddr *to,
|
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socklen_t tolen);
|
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static ssize_t inet_sendmsg(FAR struct socket *psock,
|
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FAR struct msghdr *msg, int flags);
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|
static ssize_t inet_recvmsg(FAR struct socket *psock,
|
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FAR struct msghdr *msg, int flags);
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static int inet_ioctl(FAR struct socket *psock,
|
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int cmd, unsigned long arg);
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static int inet_socketpair(FAR struct socket *psocks[2]);
|
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static int inet_shutdown(FAR struct socket *psock, int how);
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#ifdef CONFIG_NET_SOCKOPTS
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|
static int inet_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 inet_setsockopt(FAR struct socket *psock, int level,
|
|
int option, FAR const void *value, socklen_t value_len);
|
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#endif
|
|
#ifdef CONFIG_NET_SENDFILE
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|
static ssize_t inet_sendfile(FAR struct socket *psock,
|
|
FAR struct file *infile, FAR off_t *offset,
|
|
size_t count);
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#endif
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
static const struct sock_intf_s g_inet_sockif =
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{
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inet_setup, /* si_setup */
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inet_sockcaps, /* si_sockcaps */
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inet_addref, /* si_addref */
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inet_bind, /* si_bind */
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inet_getsockname, /* si_getsockname */
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inet_getpeername, /* si_getpeername */
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inet_listen, /* si_listen */
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inet_connect, /* si_connect */
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inet_accept, /* si_accept */
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inet_poll, /* si_poll */
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inet_sendmsg, /* si_sendmsg */
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inet_recvmsg, /* si_recvmsg */
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inet_close, /* si_close */
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inet_ioctl, /* si_ioctl */
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inet_socketpair, /* si_socketpair */
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inet_shutdown /* si_shutdown */
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#ifdef CONFIG_NET_SOCKOPTS
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, inet_getsockopt /* si_getsockopt */
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, inet_setsockopt /* si_setsockopt */
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#endif
|
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#ifdef CONFIG_NET_SENDFILE
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, inet_sendfile /* si_sendfile */
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#endif
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: inet_tcp_alloc
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|
*
|
|
* Description:
|
|
* Allocate and attach a TCP connection structure.
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|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
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static int inet_tcp_alloc(FAR struct socket *psock)
|
|
{
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/* Allocate the TCP connection structure */
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|
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FAR struct tcp_conn_s *conn = tcp_alloc(psock->s_domain);
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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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nerr("ERROR: Failed to reserve TCP connection structure\n");
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return -ENOMEM;
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}
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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->crefs == 0);
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conn->crefs = 1;
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/* It is expected the socket has not yet been associated with
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* any other connection.
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*/
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DEBUGASSERT(psock->s_conn == NULL);
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|
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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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return OK;
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}
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#endif /* NET_TCP_HAVE_STACK */
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|
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/****************************************************************************
|
|
* Name: inet_udp_alloc
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|
*
|
|
* Description:
|
|
* Allocate and attach a UDP connection structure.
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*
|
|
****************************************************************************/
|
|
|
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#ifdef NET_UDP_HAVE_STACK
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static int inet_udp_alloc(FAR struct socket *psock)
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{
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/* Allocate the UDP connection structure */
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FAR struct udp_conn_s *conn = udp_alloc(psock->s_domain);
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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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|
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nerr("ERROR: Failed to reserve UDP connection structure\n");
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return -ENOMEM;
|
|
}
|
|
|
|
/* 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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|
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DEBUGASSERT(conn->crefs == 0);
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conn->crefs = 1;
|
|
|
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/* Save the pre-allocated connection in the socket structure */
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|
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psock->s_conn = conn;
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return OK;
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}
|
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#endif /* NET_UDP_HAVE_STACK */
|
|
|
|
/****************************************************************************
|
|
* Name: inet_setup
|
|
*
|
|
* Description:
|
|
* Called for socket() to verify that the provided socket type and
|
|
* protocol are usable by this address family. Perform any family-
|
|
* specific socket fields.
|
|
*
|
|
* NOTE: This is common logic for both the AF_INET and AF_INET6 address
|
|
* families.
|
|
*
|
|
* Input Parameters:
|
|
* psock A pointer to a user allocated socket structure to be
|
|
* initialized.
|
|
* protocol (see sys/socket.h)
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) is returned on success. Otherwise, a negated errno value is
|
|
* returned.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_setup(FAR struct socket *psock)
|
|
{
|
|
/* Allocate the appropriate connection structure. This reserves the
|
|
* the connection structure is is unallocated at this point. It will
|
|
* not actually be initialized until the socket is connected.
|
|
*
|
|
* REVISIT: Only SOCK_STREAM and SOCK_DGRAM are supported.
|
|
*/
|
|
|
|
switch (psock->s_type)
|
|
{
|
|
#ifdef CONFIG_NET_TCP
|
|
case SOCK_STREAM:
|
|
if (psock->s_proto != 0 && psock->s_proto != IPPROTO_TCP)
|
|
{
|
|
nerr("ERROR: Unsupported stream protocol: %d\n", psock->s_proto);
|
|
return -EPROTONOSUPPORT;
|
|
}
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
/* Allocate and attach the TCP connection structure */
|
|
|
|
return inet_tcp_alloc(psock);
|
|
#else
|
|
nwarn("WARNING: SOCK_STREAM disabled\n");
|
|
return -ENETDOWN;
|
|
#endif
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
#ifdef CONFIG_NET_UDP
|
|
case SOCK_DGRAM:
|
|
if (psock->s_proto != 0 && psock->s_proto != IPPROTO_UDP)
|
|
{
|
|
nerr("ERROR: Unsupported datagram protocol: %d\n",
|
|
psock->s_proto);
|
|
return -EPROTONOSUPPORT;
|
|
}
|
|
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
/* Allocate and attach the UDP connection structure */
|
|
|
|
return inet_udp_alloc(psock);
|
|
#else
|
|
nwarn("WARNING: SOCK_DGRAM disabled\n");
|
|
return -ENETDOWN;
|
|
#endif
|
|
#endif /* CONFIG_NET_UDP */
|
|
|
|
#if defined(CONFIG_NET_TCP) || defined(CONFIG_NET_UDP)
|
|
case SOCK_CTRL:
|
|
# ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_proto == 0 || psock->s_proto == IPPROTO_TCP)
|
|
{
|
|
/* Allocate and attach the TCP connection structure */
|
|
|
|
return inet_tcp_alloc(psock);
|
|
}
|
|
|
|
# endif
|
|
# ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_proto == 0 || psock->s_proto == IPPROTO_UDP)
|
|
{
|
|
/* Allocate and attach the UDP connection structure */
|
|
|
|
return inet_udp_alloc(psock);
|
|
}
|
|
|
|
# endif
|
|
nerr("ERROR: Unsupported control protocol: %d\n", psock->s_proto);
|
|
return -EPROTONOSUPPORT;
|
|
#endif /* CONFIG_NET_TCP || CONFIG_NET_UDP */
|
|
|
|
default:
|
|
nerr("ERROR: Unsupported type: %d\n", psock->s_type);
|
|
return -EPROTONOSUPPORT;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_sockcaps
|
|
*
|
|
* Description:
|
|
* Return the bit encoded capabilities of this socket.
|
|
*
|
|
* Input Parameters:
|
|
* psock - Socket structure of the socket whose capabilities are being
|
|
* queried.
|
|
*
|
|
* Returned Value:
|
|
* The non-negative set of socket cababilities is returned.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static sockcaps_t inet_sockcaps(FAR struct socket *psock)
|
|
{
|
|
switch (psock->s_type)
|
|
{
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
case SOCK_STREAM:
|
|
return SOCKCAP_NONBLOCKING;
|
|
#endif
|
|
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
case SOCK_DGRAM:
|
|
return SOCKCAP_NONBLOCKING;
|
|
#endif
|
|
|
|
#if defined(NET_TCP_HAVE_STACK) || defined(NET_UDP_HAVE_STACK)
|
|
case SOCK_CTRL:
|
|
return SOCKCAP_NONBLOCKING;
|
|
#endif
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_addref
|
|
*
|
|
* Description:
|
|
* Increment the reference count on the underlying connection structure.
|
|
*
|
|
* Input Parameters:
|
|
* psock - Socket structure of the socket whose reference count will be
|
|
* incremented.
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void inet_addref(FAR struct socket *psock)
|
|
{
|
|
DEBUGASSERT(psock != NULL && psock->s_conn != NULL);
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM ||
|
|
(psock->s_type == SOCK_CTRL &&
|
|
(psock->s_proto == 0 || psock->s_proto == IPPROTO_TCP)))
|
|
{
|
|
FAR struct tcp_conn_s *conn = psock->s_conn;
|
|
DEBUGASSERT(conn->crefs > 0 && conn->crefs < 255);
|
|
conn->crefs++;
|
|
}
|
|
else
|
|
#endif
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_type == SOCK_DGRAM ||
|
|
(psock->s_type == SOCK_CTRL &&
|
|
(psock->s_proto == 0 || psock->s_proto == IPPROTO_UDP)))
|
|
{
|
|
FAR struct udp_conn_s *conn = psock->s_conn;
|
|
DEBUGASSERT(conn->crefs > 0 && conn->crefs < 255);
|
|
conn->crefs++;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
nerr("ERROR: Unsupported type: %d\n", psock->s_type);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_bind
|
|
*
|
|
* Description:
|
|
* inet_bind() gives the socket 'psock' the local address 'addr'. 'addr'
|
|
* 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.
|
|
*
|
|
* Input Parameters:
|
|
* psock Socket structure of the socket to bind
|
|
* addr Socket local address
|
|
* addrlen Length of 'addr'
|
|
*
|
|
* Returned Value:
|
|
* 0 on success; A negated errno value is returned on failure. See
|
|
* bind() for a list a appropriate error values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_bind(FAR struct socket *psock,
|
|
FAR const struct sockaddr *addr, socklen_t addrlen)
|
|
{
|
|
int minlen;
|
|
int ret;
|
|
|
|
/* Verify that a valid address has been provided */
|
|
|
|
switch (addr->sa_family)
|
|
{
|
|
#ifdef CONFIG_NET_IPv4
|
|
case AF_INET:
|
|
minlen = sizeof(struct sockaddr_in);
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case AF_INET6:
|
|
minlen = sizeof(struct sockaddr_in6);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
nerr("ERROR: Unrecognized address family: %d\n", addr->sa_family);
|
|
return -EAFNOSUPPORT;
|
|
}
|
|
|
|
if (addrlen < minlen)
|
|
{
|
|
nerr("ERROR: Invalid address length: %d < %d\n", addrlen, minlen);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Perform the binding depending on the protocol type */
|
|
|
|
switch (psock->s_type)
|
|
{
|
|
#ifdef CONFIG_NET_TCP
|
|
case SOCK_STREAM:
|
|
{
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
/* Bind a TCP/IP stream socket. */
|
|
|
|
ret = tcp_bind(psock->s_conn, addr);
|
|
#else
|
|
nwarn("WARNING: TCP/IP stack is not available in this "
|
|
"configuration\n");
|
|
|
|
ret = -ENOSYS;
|
|
#endif
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
#ifdef CONFIG_NET_UDP
|
|
case SOCK_DGRAM:
|
|
{
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
/* Bind a UDP/IP datagram socket */
|
|
|
|
ret = udp_bind(psock->s_conn, addr);
|
|
#else
|
|
nwarn("WARNING: UDP stack is not available in this "
|
|
"configuration\n");
|
|
ret = -ENOSYS;
|
|
#endif
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_UDP */
|
|
|
|
#if defined(CONFIG_NET_TCP) || defined(CONFIG_NET_UDP)
|
|
case SOCK_CTRL:
|
|
{
|
|
nerr("ERROR: Inappropriate socket type: %d\n", psock->s_type);
|
|
ret = -EOPNOTSUPP;
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
nerr("ERROR: Unsupported socket type: %d\n", psock->s_type);
|
|
ret = -EBADF;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_getsockname
|
|
*
|
|
* Description:
|
|
* The inet_getsockname() function retrieves the locally-bound name of
|
|
* the specified INET 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.
|
|
*
|
|
* Input 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
|
|
* getsockname() for the list of appropriate error numbers.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_getsockname(FAR struct socket *psock,
|
|
FAR struct sockaddr *addr,
|
|
FAR socklen_t *addrlen)
|
|
{
|
|
/* Handle by address domain */
|
|
|
|
switch (psock->s_domain)
|
|
{
|
|
#ifdef CONFIG_NET_IPv4
|
|
case PF_INET:
|
|
return ipv4_getsockname(psock, addr, addrlen);
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case PF_INET6:
|
|
return ipv6_getsockname(psock, addr, addrlen);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
return -EAFNOSUPPORT;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_getpeername
|
|
*
|
|
* Description:
|
|
* The inet_getpeername() function retrieves the remote-connected name of
|
|
* the specified INET 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 inet_getpeername(FAR struct socket *psock,
|
|
FAR struct sockaddr *addr,
|
|
FAR socklen_t *addrlen)
|
|
{
|
|
/* Handle by address domain */
|
|
|
|
switch (psock->s_domain)
|
|
{
|
|
#ifdef CONFIG_NET_IPv4
|
|
case PF_INET:
|
|
return ipv4_getpeername(psock, addr, addrlen);
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case PF_INET6:
|
|
return ipv6_getpeername(psock, addr, addrlen);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
return -EAFNOSUPPORT;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_NET_SOCKOPTS
|
|
|
|
/****************************************************************************
|
|
* Name: inet_get_socketlevel_option
|
|
*
|
|
* Description:
|
|
* inet_get_socketlevel_option() retrieve the value for the option
|
|
* specified by the 'option' argument for the socket specified by the
|
|
* 'psock' 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; to retrieve options at the TCP-protocol level, the level
|
|
* argument is SOL_TCP.
|
|
*
|
|
* See <sys/socket.h> a complete list of values for the socket-level
|
|
* 'option' argument. Protocol-specific options are are protocol specific
|
|
* header files (such as netinet/tcp.h for the case of the TCP protocol).
|
|
*
|
|
* 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
|
|
*
|
|
* Returned Value:
|
|
* Returns zero (OK) on success. On failure, it returns a negated errno
|
|
* value to indicate the nature of the error. See psock_getsockopt() for
|
|
* the complete list of appropriate return error codes.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_get_socketlevel_option(FAR struct socket *psock, int option,
|
|
FAR void *value,
|
|
FAR socklen_t *value_len)
|
|
{
|
|
switch (option)
|
|
{
|
|
#if CONFIG_NET_RECV_BUFSIZE > 0
|
|
case SO_RCVBUF: /* Reports receive buffer size */
|
|
{
|
|
if (*value_len != sizeof(int))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM)
|
|
{
|
|
FAR struct tcp_conn_s *tcp = psock->s_conn;
|
|
*(FAR int *)value = tcp->rcv_bufs;
|
|
}
|
|
else
|
|
#endif
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_type == SOCK_DGRAM)
|
|
{
|
|
FAR struct udp_conn_s *udp = psock->s_conn;
|
|
*(FAR int *)value = udp->rcvbufs;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
return -ENOPROTOOPT;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#if CONFIG_NET_SEND_BUFSIZE > 0
|
|
case SO_SNDBUF: /* Reports send buffer size */
|
|
{
|
|
if (*value_len != sizeof(int))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM)
|
|
{
|
|
FAR struct tcp_conn_s *tcp = psock->s_conn;
|
|
*(FAR int *)value = tcp->snd_bufs;
|
|
}
|
|
else
|
|
#endif
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_type == SOCK_DGRAM)
|
|
{
|
|
FAR struct udp_conn_s *udp = psock->s_conn;
|
|
|
|
/* Save the send buffer size */
|
|
|
|
*(FAR int *)value = udp->sndbufs;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
return -ENOPROTOOPT;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_TCPPROTO_OPTIONS
|
|
case SO_KEEPALIVE:
|
|
{
|
|
/* Any connection-oriented protocol could potentially support
|
|
* SO_KEEPALIVE. However, this option is currently only available
|
|
* for TCP/IP.
|
|
*
|
|
* NOTE: SO_KEEPALIVE is not really a socket-level option; it is a
|
|
* protocol-level option. A given TCP connection may service
|
|
* multiple sockets (via dup'ing of the socket). There is, however,
|
|
* still only one connection to be monitored and that is a global
|
|
* attribute across all of the clones that may use the underlying
|
|
* connection.
|
|
*/
|
|
|
|
/* Verifies TCP connections active by enabling the periodic
|
|
* transmission of probes.
|
|
*/
|
|
|
|
return tcp_getsockopt(psock, option, value, value_len);
|
|
}
|
|
#endif
|
|
|
|
default:
|
|
return -ENOPROTOOPT;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_getsockopt
|
|
*
|
|
* Description:
|
|
* inet_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 inet_getsockopt(FAR struct socket *psock, int level, int option,
|
|
FAR void *value, FAR socklen_t *value_len)
|
|
{
|
|
switch (level)
|
|
{
|
|
case SOL_SOCKET:
|
|
return inet_get_socketlevel_option(psock, option, value, value_len);
|
|
|
|
#ifdef CONFIG_NET_TCPPROTO_OPTIONS
|
|
case IPPROTO_TCP:
|
|
return tcp_getsockopt(psock, option, value, value_len);
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv4
|
|
case IPPROTO_IP:/* IPv4 protocol socket options (see include/netinet/in.h) */
|
|
return ipv4_getsockopt(psock, option, value, value_len);
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case IPPROTO_IPV6:/* IPv6 protocol socket options (see include/netinet/in.h) */
|
|
return ipv6_getsockopt(psock, option, value, value_len);
|
|
#endif
|
|
|
|
default:
|
|
return -ENOPROTOOPT;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_set_socketlevel_option
|
|
*
|
|
* Description:
|
|
* inet_set_socketlevel_option() sets the socket-level option specified by
|
|
* the 'option' argument to the value pointed to by the 'value' argument
|
|
* for the socket specified by the 'psock' argument.
|
|
*
|
|
* See <sys/socket.h> a complete list of values for the socket level
|
|
* 'option' argument.
|
|
*
|
|
* Input Parameters:
|
|
* psock Socket structure of socket to operate on
|
|
* option identifies the option to set
|
|
* value Points to the argument value
|
|
* value_len The length of the argument value
|
|
*
|
|
* Returned Value:
|
|
* Returns zero (OK) on success. On failure, it returns a negated errno
|
|
* value to indicate the nature of the error. See psock_setcockopt() for
|
|
* the list of possible error values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_set_socketlevel_option(FAR struct socket *psock, int option,
|
|
FAR const void *value,
|
|
socklen_t value_len)
|
|
{
|
|
switch (option)
|
|
{
|
|
#ifdef CONFIG_NET_TCPPROTO_OPTIONS
|
|
case SO_KEEPALIVE:
|
|
{
|
|
/* Any connection-oriented protocol could potentially support
|
|
* SO_KEEPALIVE. However, this option is currently only available
|
|
* for TCP/IP.
|
|
*
|
|
* NOTE: SO_KEEPALIVE is not really a socket-level option; it is a
|
|
* protocol-level option. A given TCP connection may service
|
|
* multiple sockets (via dup'ing of the socket). There is, however,
|
|
* still only one connection to be monitored and that is a global
|
|
* attribute across all of the clones that may use the underlying
|
|
* connection.
|
|
*/
|
|
|
|
/* Verifies TCP connections active by enabling the
|
|
* periodic transmission of probes
|
|
*/
|
|
|
|
return tcp_setsockopt(psock, option, value, value_len);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_SOLINGER
|
|
case SO_LINGER:
|
|
{
|
|
/* Lingers on a close() if data is present */
|
|
|
|
FAR struct socket_conn_s *conn = psock->s_conn;
|
|
FAR struct linger *setting;
|
|
|
|
/* Verify that option is at least the size of an 'struct linger'. */
|
|
|
|
if (value_len < sizeof(struct linger))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Get the value. Is the option being set or cleared? */
|
|
|
|
setting = (FAR struct linger *)value;
|
|
|
|
/* Lock the network so that we have exclusive access to the socket
|
|
* options.
|
|
*/
|
|
|
|
net_lock();
|
|
|
|
/* Set or clear the linger option bit and linger time
|
|
* (in deciseconds)
|
|
*/
|
|
|
|
if (setting->l_onoff)
|
|
{
|
|
_SO_SETOPT(conn->s_options, option);
|
|
conn->s_linger = 10 * setting->l_linger;
|
|
}
|
|
else
|
|
{
|
|
_SO_CLROPT(conn->s_options, option);
|
|
conn->s_linger = 0;
|
|
}
|
|
|
|
net_unlock();
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#if CONFIG_NET_RECV_BUFSIZE > 0
|
|
case SO_RCVBUF: /* Sets receive buffer size */
|
|
{
|
|
int buffersize;
|
|
|
|
/* Verify that option is the size of an 'int'. Should also check
|
|
* that 'value' is properly aligned for an 'int'
|
|
*/
|
|
|
|
if (value_len != sizeof(int))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Get the value. Is the option being set or cleared? */
|
|
|
|
buffersize = *(FAR int *)value;
|
|
if (buffersize < 0)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
#if CONFIG_NET_MAX_RECV_BUFSIZE > 0
|
|
buffersize = MIN(buffersize, CONFIG_NET_MAX_RECV_BUFSIZE);
|
|
#endif
|
|
|
|
net_lock();
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM)
|
|
{
|
|
FAR struct tcp_conn_s *tcp = psock->s_conn;
|
|
|
|
/* Save the receive buffer size */
|
|
|
|
tcp->rcv_bufs = buffersize;
|
|
}
|
|
else
|
|
#endif
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_type == SOCK_DGRAM)
|
|
{
|
|
FAR struct udp_conn_s *udp = psock->s_conn;
|
|
|
|
/* Save the receive buffer size */
|
|
|
|
udp->rcvbufs = buffersize;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
net_unlock();
|
|
return -ENOPROTOOPT;
|
|
}
|
|
|
|
net_unlock();
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#if CONFIG_NET_SEND_BUFSIZE > 0
|
|
case SO_SNDBUF: /* Sets send buffer size */
|
|
{
|
|
int buffersize;
|
|
|
|
/* Verify that option is the size of an 'int'. Should also check
|
|
* that 'value' is properly aligned for an 'int'
|
|
*/
|
|
|
|
if (value_len != sizeof(int))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Get the value. Is the option being set or cleared? */
|
|
|
|
buffersize = *(FAR int *)value;
|
|
|
|
if (buffersize < 0)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
#if CONFIG_NET_MAX_SEND_BUFSIZE > 0
|
|
buffersize = MIN(buffersize, CONFIG_NET_MAX_SEND_BUFSIZE);
|
|
#endif
|
|
|
|
net_lock();
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM)
|
|
{
|
|
FAR struct tcp_conn_s *tcp = psock->s_conn;
|
|
|
|
/* Save the send buffer size */
|
|
|
|
tcp->snd_bufs = buffersize;
|
|
}
|
|
else
|
|
#endif
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_type == SOCK_DGRAM)
|
|
{
|
|
FAR struct udp_conn_s *udp = psock->s_conn;
|
|
|
|
/* Save the send buffer size */
|
|
|
|
udp->sndbufs = buffersize;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
net_unlock();
|
|
return -ENOPROTOOPT;
|
|
}
|
|
|
|
net_unlock();
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
return -ENOPROTOOPT;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_setsockopt
|
|
*
|
|
* Description:
|
|
* inet_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 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 inet_setsockopt(FAR struct socket *psock, int level, int option,
|
|
FAR const void *value, socklen_t value_len)
|
|
{
|
|
switch (level)
|
|
{
|
|
case SOL_SOCKET:
|
|
return inet_set_socketlevel_option(psock, option, value, value_len);
|
|
|
|
#ifdef CONFIG_NET_TCPPROTO_OPTIONS
|
|
case IPPROTO_TCP:/* TCP protocol socket options (see include/netinet/tcp.h) */
|
|
return tcp_setsockopt(psock, option, value, value_len);
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_UDPPROTO_OPTIONS
|
|
case IPPROTO_UDP:/* UDP protocol socket options (see include/netinet/udp.h) */
|
|
return udp_setsockopt(psock, option, value, value_len);
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv4
|
|
case IPPROTO_IP:/* IPv4 protocol socket options (see include/netinet/in.h) */
|
|
return ipv4_setsockopt(psock, option, value, value_len);
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case IPPROTO_IPV6:/* IPv6 protocol socket options (see include/netinet/in.h) */
|
|
return ipv6_setsockopt(psock, option, value, value_len);
|
|
#endif
|
|
default:
|
|
return -ENOPROTOOPT;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: inet_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 AFINET
|
|
* and AFINET6 sockets, psock_listen() calls this function. The
|
|
* psock_listen() call applies only to sockets of type SOCK_STREAM or
|
|
* SOCK_SEQPACKET.
|
|
*
|
|
* Input Parameters:
|
|
* 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
|
|
* returned. See listen() for the set of appropriate error values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_listen(FAR struct socket *psock, int backlog)
|
|
{
|
|
#if defined(CONFIG_NET_TCP) && defined(NET_TCP_HAVE_STACK)
|
|
FAR struct tcp_conn_s *conn;
|
|
int ret;
|
|
#endif
|
|
|
|
/* Verify that the sockfd corresponds to a connected SOCK_STREAM */
|
|
|
|
if (psock->s_type != SOCK_STREAM)
|
|
{
|
|
nerr("ERROR: Unsupported socket type: %d\n",
|
|
psock->s_type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
#ifdef CONFIG_NET_TCP
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
conn = psock->s_conn;
|
|
|
|
if (conn->lport <= 0)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
#ifdef CONFIG_NET_TCPBACKLOG
|
|
/* Set up the backlog for this connection */
|
|
|
|
ret = tcp_backlogcreate(conn, backlog);
|
|
if (ret < 0)
|
|
{
|
|
nerr("ERROR: tcp_backlogcreate failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/* Start listening to the bound port. This enables callbacks when
|
|
* accept() is called and enables poll()/select() logic.
|
|
*/
|
|
|
|
ret = tcp_listen(conn);
|
|
if (ret < 0)
|
|
{
|
|
nerr("ERROR: tcp_listen failed: %d\n", ret);
|
|
}
|
|
|
|
return ret;
|
|
#else
|
|
nwarn("WARNING: Stream socket support not available\n");
|
|
return -EOPNOTSUPP;
|
|
#endif /* NET_TCP_HAVE_STACK */
|
|
#else
|
|
nwarn("WARNING: Stream socket support not enabled\n");
|
|
return -EOPNOTSUPP;
|
|
#endif /* CONFIG_NET_TCP */
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_connect
|
|
*
|
|
* Description:
|
|
* inet_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
|
|
* inet_connect() only once; connectionless protocol sockets may use
|
|
* inet_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.
|
|
*
|
|
* Input Parameters:
|
|
* psock - Pointer to a socket structure initialized by psock_socket()
|
|
* addr - Server address (form depends on type of socket). The upper
|
|
* socket layer has verified that this address is non-NULL.
|
|
* addrlen - Length of actual 'addr'
|
|
*
|
|
* Returned Value:
|
|
* 0 on success; a negated errno value on failure. See connect() for the
|
|
* list of appropriate errno values to be returned.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_connect(FAR struct socket *psock,
|
|
FAR const struct sockaddr *addr, socklen_t addrlen)
|
|
{
|
|
FAR const struct sockaddr_in *inaddr =
|
|
(FAR const struct sockaddr_in *)addr;
|
|
|
|
/* Verify that a valid address has been provided */
|
|
|
|
switch (inaddr->sin_family)
|
|
{
|
|
#ifdef CONFIG_NET_IPv4
|
|
case AF_INET:
|
|
{
|
|
if (addrlen < sizeof(struct sockaddr_in))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case AF_INET6:
|
|
{
|
|
if (addrlen < sizeof(struct sockaddr_in6))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case AF_UNSPEC:
|
|
break;
|
|
|
|
default:
|
|
DEBUGPANIC();
|
|
return -EAFNOSUPPORT;
|
|
}
|
|
|
|
/* Perform the connection depending on the protocol type */
|
|
|
|
switch (psock->s_type)
|
|
{
|
|
#if defined(CONFIG_NET_TCP) && defined(NET_TCP_HAVE_STACK)
|
|
case SOCK_STREAM:
|
|
{
|
|
FAR struct tcp_conn_s *conn = psock->s_conn;
|
|
|
|
/* Verify that the socket is not already connected */
|
|
|
|
if (_SS_ISCONNECTED(conn->sconn.s_flags))
|
|
{
|
|
return -EISCONN;
|
|
}
|
|
|
|
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
|
|
if (conn->domain != addr->sa_family)
|
|
{
|
|
nerr("conn's domain must be the same as addr's family!\n");
|
|
return -EPROTOTYPE;
|
|
}
|
|
|
|
#endif
|
|
/* It's not ... Connect the TCP/IP socket */
|
|
|
|
return psock_tcp_connect(psock, addr);
|
|
}
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
#if defined(CONFIG_NET_UDP) && defined(NET_UDP_HAVE_STACK)
|
|
case SOCK_DGRAM:
|
|
{
|
|
FAR struct udp_conn_s *conn;
|
|
int ret;
|
|
|
|
/* We will accept connecting to a addr == NULL for disconnection.
|
|
* However, the correct way is to disconnect is to provide an
|
|
* address with sa_family == AF_UNSPEC.
|
|
*/
|
|
|
|
if (addr != NULL && addr->sa_family == AF_UNSPEC)
|
|
{
|
|
addr = NULL;
|
|
}
|
|
|
|
/* Perform the connect/disconnect operation */
|
|
|
|
conn = psock->s_conn;
|
|
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_IPv6)
|
|
if (addr != NULL && conn->domain != addr->sa_family)
|
|
{
|
|
nerr("conn's domain must be the same as addr's family!\n");
|
|
return -EPROTOTYPE;
|
|
}
|
|
|
|
#endif
|
|
ret = udp_connect(conn, addr);
|
|
if (ret < 0 || addr == NULL)
|
|
{
|
|
/* Failed to connect or explicitly disconnected */
|
|
|
|
conn->sconn.s_flags &= ~_SF_CONNECTED;
|
|
conn->flags &= ~_UDP_FLAG_CONNECTMODE;
|
|
}
|
|
else
|
|
{
|
|
/* Successfully connected */
|
|
|
|
conn->sconn.s_flags |= _SF_CONNECTED;
|
|
conn->flags |= _UDP_FLAG_CONNECTMODE;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif /* CONFIG_NET_UDP */
|
|
|
|
#if defined(CONFIG_NET_TCP) && defined(CONFIG_NET_UDP)
|
|
case SOCK_CTRL:
|
|
{
|
|
nerr("ERROR: Inappropriate socket type: %d\n", psock->s_type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
default:
|
|
return -EBADF;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_accept
|
|
*
|
|
* Description:
|
|
* The inet_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 inet_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, inet_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, inet_accept returns
|
|
* EAGAIN.
|
|
*
|
|
* Input Parameters:
|
|
* psock Reference to the listening socket structure
|
|
* addr Receives the address of the connecting client
|
|
* addrlen Input: allocated size of 'addr', Return: returned size of
|
|
* 'addr'
|
|
* newsock Location to return the accepted socket information.
|
|
*
|
|
* Returned Value:
|
|
* Returns 0 (OK) on success. On failure, it returns a negated errno
|
|
* value. See accept() for a description of the appropriate error value.
|
|
*
|
|
* Assumptions:
|
|
* The network is locked.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_accept(FAR struct socket *psock, FAR struct sockaddr *addr,
|
|
FAR socklen_t *addrlen, FAR struct socket *newsock,
|
|
int flags)
|
|
{
|
|
#if defined(CONFIG_NET_TCP) && defined(NET_TCP_HAVE_STACK)
|
|
int ret;
|
|
#endif
|
|
|
|
/* Is the socket a stream? */
|
|
|
|
if (psock->s_type != SOCK_STREAM)
|
|
{
|
|
nerr("ERROR: Inappropriate socket type: %d\n", psock->s_type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/* Verify that a valid memory block has been provided to receive the
|
|
* address
|
|
*/
|
|
|
|
if (addr != NULL)
|
|
{
|
|
/* If an address is provided, then the length must also be provided. */
|
|
|
|
DEBUGASSERT(*addrlen > 0);
|
|
|
|
/* A valid length depends on the address domain */
|
|
|
|
switch (psock->s_domain)
|
|
{
|
|
#ifdef CONFIG_NET_IPv4
|
|
case PF_INET:
|
|
{
|
|
if (*addrlen < sizeof(struct sockaddr_in))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_IPv4 */
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case PF_INET6:
|
|
{
|
|
if (*addrlen < sizeof(struct sockaddr_in6))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_IPv6 */
|
|
|
|
default:
|
|
DEBUGPANIC();
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/* Initialize the socket structure. */
|
|
|
|
newsock->s_domain = psock->s_domain;
|
|
newsock->s_type = SOCK_STREAM;
|
|
newsock->s_sockif = psock->s_sockif;
|
|
|
|
/* Perform the correct accept operation for this address domain */
|
|
|
|
#ifdef CONFIG_NET_TCP
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
/* Perform the local accept operation (the network locked must be locked
|
|
* by the caller).
|
|
*/
|
|
|
|
ret = psock_tcp_accept(psock, addr, addrlen, &newsock->s_conn);
|
|
if (ret < 0)
|
|
{
|
|
nerr("ERROR: psock_tcp_accept failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Begin monitoring for TCP connection events on the newly connected
|
|
* socket
|
|
*/
|
|
|
|
ret = tcp_start_monitor(newsock);
|
|
if (ret < 0)
|
|
{
|
|
/* tcp_start_monitor() can only fail on certain race conditions where
|
|
* the connection was lost just before this function was called. Undo
|
|
* everything we have done and return a failure.
|
|
*/
|
|
|
|
psock_close(newsock);
|
|
}
|
|
|
|
return ret;
|
|
|
|
#else
|
|
nwarn("WARNING: SOCK_STREAM not supported in this configuration\n");
|
|
return -EOPNOTSUPP;
|
|
#endif /* NET_TCP_HAVE_STACK */
|
|
|
|
#else
|
|
nwarn("WARNING: TCP/IP not supported in this configuration\n");
|
|
return -EOPNOTSUPP;
|
|
#endif /* CONFIG_NET_TCP */
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_pollsetup
|
|
*
|
|
* Description:
|
|
* Setup to monitor events on one socket
|
|
*
|
|
* Input Parameters:
|
|
* psock - The socket of interest
|
|
* fds - The structure describing the events to be monitored, OR NULL if
|
|
* this is a request to stop monitoring events.
|
|
*
|
|
* Returned Value:
|
|
* 0: Success; Negated errno on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#if defined(NET_TCP_HAVE_STACK) || defined(NET_UDP_HAVE_STACK)
|
|
static inline int inet_pollsetup(FAR struct socket *psock,
|
|
FAR struct pollfd *fds)
|
|
{
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM)
|
|
{
|
|
return tcp_pollsetup(psock, fds);
|
|
}
|
|
else
|
|
#endif /* NET_TCP_HAVE_STACK */
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_type == SOCK_DGRAM)
|
|
{
|
|
return udp_pollsetup(psock, fds);
|
|
}
|
|
else
|
|
#endif /* NET_UDP_HAVE_STACK */
|
|
#if defined(NET_TCP_HAVE_STACK) || defined(NET_UDP_HAVE_STACK)
|
|
if (psock->s_type == SOCK_CTRL)
|
|
{
|
|
nerr("ERROR: Inappropriate socket type: %d\n", psock->s_type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
}
|
|
#endif /* NET_TCP_HAVE_STACK || NET_UDP_HAVE_STACK */
|
|
|
|
/****************************************************************************
|
|
* Name: inet_pollteardown
|
|
*
|
|
* Description:
|
|
* Teardown monitoring of events on an socket
|
|
*
|
|
* Input Parameters:
|
|
* psock - The TCP/IP socket of interest
|
|
* fds - The structure describing the events to be monitored, OR NULL if
|
|
* this is a request to stop monitoring events.
|
|
*
|
|
* Returned Value:
|
|
* 0: Success; Negated errno on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
#if defined(NET_TCP_HAVE_STACK) || defined(NET_UDP_HAVE_STACK)
|
|
static inline int inet_pollteardown(FAR struct socket *psock,
|
|
FAR struct pollfd *fds)
|
|
{
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM)
|
|
{
|
|
return tcp_pollteardown(psock, fds);
|
|
}
|
|
else
|
|
#endif /* NET_TCP_HAVE_STACK */
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (psock->s_type == SOCK_DGRAM)
|
|
{
|
|
return udp_pollteardown(psock, fds);
|
|
}
|
|
else
|
|
#endif /* NET_UDP_HAVE_STACK */
|
|
#if defined(NET_TCP_HAVE_STACK) || defined(NET_UDP_HAVE_STACK)
|
|
if (psock->s_type == SOCK_CTRL)
|
|
{
|
|
nerr("ERROR: Inappropriate socket type: %d\n", psock->s_type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
}
|
|
#endif /* NET_TCP_HAVE_STACK || NET_UDP_HAVE_STACK */
|
|
|
|
/****************************************************************************
|
|
* Name: inet_poll
|
|
*
|
|
* Description:
|
|
* The standard poll() operation redirects operations on socket descriptors
|
|
* to net_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 inet_poll(FAR struct socket *psock, FAR struct pollfd *fds,
|
|
bool setup)
|
|
{
|
|
#if defined(NET_TCP_HAVE_STACK) || defined(NET_UDP_HAVE_STACK)
|
|
|
|
/* Check if we are setting up or tearing down the poll */
|
|
|
|
if (setup)
|
|
{
|
|
/* Perform the TCP/IP poll() setup */
|
|
|
|
return inet_pollsetup(psock, fds);
|
|
}
|
|
else
|
|
{
|
|
/* Perform the TCP/IP poll() teardown */
|
|
|
|
return inet_pollteardown(psock, fds);
|
|
}
|
|
#else
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif /* NET_TCP_HAVE_STACK || !NET_UDP_HAVE_STACK */
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_send
|
|
*
|
|
* Description:
|
|
* The inet_send() call may be used only when the socket is in a connected
|
|
* state (so that the intended recipient is known).
|
|
*
|
|
* Input Parameters:
|
|
* psock An instance of the internal socket structure.
|
|
* buf Data to send
|
|
* len Length of data to send
|
|
* flags Send flags
|
|
*
|
|
* Returned Value:
|
|
* On success, returns the number of characters sent. On error, a negated
|
|
* errno value is returned (see send() for the list of appropriate error
|
|
* values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static ssize_t inet_send(FAR struct socket *psock, FAR const void *buf,
|
|
size_t len, int flags)
|
|
{
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
FAR struct socket_conn_s *conn = psock->s_conn;
|
|
#endif
|
|
ssize_t ret;
|
|
|
|
switch (psock->s_type)
|
|
{
|
|
#ifdef CONFIG_NET_TCP
|
|
case SOCK_STREAM:
|
|
{
|
|
#ifdef CONFIG_NET_6LOWPAN
|
|
/* Try 6LoWPAN TCP packet send */
|
|
|
|
ret = psock_6lowpan_tcp_send(psock, buf, len);
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (ret < 0)
|
|
{
|
|
/* TCP/IP packet send */
|
|
|
|
ret = psock_tcp_send(psock, buf, len, flags);
|
|
}
|
|
#endif /* NET_TCP_HAVE_STACK */
|
|
|
|
#elif defined(NET_TCP_HAVE_STACK)
|
|
ret = psock_tcp_send(psock, buf, len, flags);
|
|
#else
|
|
ret = -ENOSYS;
|
|
#endif /* CONFIG_NET_6LOWPAN */
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
#ifdef CONFIG_NET_UDP
|
|
case SOCK_DGRAM:
|
|
{
|
|
#if defined(CONFIG_NET_6LOWPAN)
|
|
/* Try 6LoWPAN UDP packet send */
|
|
|
|
ret = psock_6lowpan_udp_send(psock, buf, len);
|
|
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (ret < 0)
|
|
{
|
|
/* UDP/IP packet send */
|
|
|
|
ret = _SS_ISCONNECTED(conn->s_flags) ?
|
|
psock_udp_sendto(psock, buf, len, 0, NULL, 0) : -ENOTCONN;
|
|
}
|
|
#endif /* NET_UDP_HAVE_STACK */
|
|
|
|
#elif defined(NET_UDP_HAVE_STACK)
|
|
/* Only UDP/IP packet send */
|
|
|
|
ret = _SS_ISCONNECTED(conn->s_flags) ?
|
|
psock_udp_sendto(psock, buf, len, 0, NULL, 0) : -ENOTCONN;
|
|
#else
|
|
ret = -ENOSYS;
|
|
#endif /* CONFIG_NET_6LOWPAN */
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_UDP */
|
|
|
|
#if defined(CONFIG_NET_TCP) || defined(CONFIG_NET_UDP)
|
|
case SOCK_CTRL:
|
|
{
|
|
nerr("ERROR: Inappropriate socket type: %d\n", psock->s_type);
|
|
ret = -EOPNOTSUPP;
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
{
|
|
/* EDESTADDRREQ. Signifies that the socket is not connection-mode
|
|
* and no peer address is set.
|
|
*/
|
|
|
|
nerr("ERROR: Bad socket type: %d\n", psock->s_type);
|
|
ret = -EDESTADDRREQ;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_sendto
|
|
*
|
|
* Description:
|
|
* Implements the sendto() operation for the case of the AF_INET and
|
|
* AF_INET6 sockets.
|
|
*
|
|
* Input Parameters:
|
|
* psock A pointer to a NuttX-specific, internal socket structure
|
|
* buf Data to send
|
|
* len Length of data to send
|
|
* flags Send flags
|
|
* to Address of recipient
|
|
* tolen The length of the address structure
|
|
*
|
|
* Returned Value:
|
|
* On success, returns the number of characters sent. On error, a negated
|
|
* errno value is returned (see send_to() for the list of appropriate error
|
|
* values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static ssize_t inet_sendto(FAR struct socket *psock, FAR const void *buf,
|
|
size_t len, int flags,
|
|
FAR const struct sockaddr *to, socklen_t tolen)
|
|
{
|
|
socklen_t minlen;
|
|
ssize_t nsent;
|
|
|
|
/* Verify that a valid address has been provided */
|
|
|
|
switch (to->sa_family)
|
|
{
|
|
#ifdef CONFIG_NET_IPv4
|
|
case AF_INET:
|
|
minlen = sizeof(struct sockaddr_in);
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case AF_INET6:
|
|
minlen = sizeof(struct sockaddr_in6);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
nerr("ERROR: Unrecognized address family: %d\n", to->sa_family);
|
|
return -EAFNOSUPPORT;
|
|
}
|
|
|
|
if (tolen < minlen)
|
|
{
|
|
nerr("ERROR: Invalid address length: %d < %d\n", tolen, minlen);
|
|
return -EBADF;
|
|
}
|
|
|
|
#ifdef CONFIG_NET_UDP
|
|
/* If this is a connected socket, then return EISCONN */
|
|
|
|
if (psock->s_type != SOCK_DGRAM)
|
|
{
|
|
nerr("ERROR: Connected socket\n");
|
|
return -EBADF;
|
|
}
|
|
|
|
/* Now handle the INET sendto() operation */
|
|
|
|
#if defined(CONFIG_NET_6LOWPAN)
|
|
/* Try 6LoWPAN UDP packet sendto() */
|
|
|
|
nsent = psock_6lowpan_udp_sendto(psock, buf, len, flags, to, minlen);
|
|
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
if (nsent < 0)
|
|
{
|
|
/* UDP/IP packet sendto */
|
|
|
|
nsent = psock_udp_sendto(psock, buf, len, flags, to, tolen);
|
|
}
|
|
#endif /* NET_UDP_HAVE_STACK */
|
|
|
|
#elif defined(NET_UDP_HAVE_STACK)
|
|
nsent = psock_udp_sendto(psock, buf, len, flags, to, tolen);
|
|
#else
|
|
nwarn("WARNING: UDP not available in this configuiration\n");
|
|
nsent = -ENOSYS;
|
|
#endif /* CONFIG_NET_6LOWPAN */
|
|
#else
|
|
nwarn("WARNING: UDP not enabled in this configuiration\n");
|
|
nsent = -EISCONN;
|
|
#endif /* CONFIG_NET_UDP */
|
|
|
|
return nsent;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_sendmsg
|
|
*
|
|
* Description:
|
|
* The inet_send() call may be used only when the socket is in a connected
|
|
* state (so that the intended recipient is known).
|
|
*
|
|
* Input Parameters:
|
|
* psock An instance of the internal socket structure.
|
|
* msg Message to send
|
|
* flags Send flags
|
|
*
|
|
* Returned Value:
|
|
* On success, returns the number of characters sent. On error, a negated
|
|
* errno value is returned (see sendmsg() for the list of appropriate error
|
|
* values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static ssize_t inet_sendmsg(FAR struct socket *psock,
|
|
FAR struct msghdr *msg, int flags)
|
|
{
|
|
FAR void *buf = msg->msg_iov->iov_base;
|
|
size_t len = msg->msg_iov->iov_len;
|
|
FAR const struct sockaddr *to = msg->msg_name;
|
|
socklen_t tolen = msg->msg_namelen;
|
|
FAR const struct iovec *iov;
|
|
FAR const struct iovec *end;
|
|
int ret;
|
|
|
|
if (msg->msg_iovlen == 1)
|
|
{
|
|
return to ? inet_sendto(psock, buf, len, flags, to, tolen) :
|
|
inet_send(psock, buf, len, flags);
|
|
}
|
|
|
|
end = &msg->msg_iov[msg->msg_iovlen];
|
|
for (len = 0, iov = msg->msg_iov; iov != end; iov++)
|
|
{
|
|
len += iov->iov_len;
|
|
}
|
|
|
|
buf = kmm_malloc(len);
|
|
if (buf == NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (len = 0, iov = msg->msg_iov; iov != end; iov++)
|
|
{
|
|
memcpy(((unsigned char *)buf) + len, iov->iov_base, iov->iov_len);
|
|
len += iov->iov_len;
|
|
}
|
|
|
|
ret = to ? inet_sendto(psock, buf, len, flags, to, tolen) :
|
|
inet_send(psock, buf, len, flags);
|
|
|
|
kmm_free(buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_ioctl
|
|
*
|
|
* Description:
|
|
* This function performs network 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
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_ioctl(FAR struct socket *psock, int cmd, unsigned long arg)
|
|
{
|
|
/* Verify that the sockfd corresponds to valid, allocated socket */
|
|
|
|
if (psock == NULL || psock->s_conn == NULL)
|
|
{
|
|
return -EBADF;
|
|
}
|
|
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM ||
|
|
(psock->s_type == SOCK_CTRL &&
|
|
(psock->s_proto == 0 || psock->s_proto == IPPROTO_TCP)))
|
|
{
|
|
return tcp_ioctl(psock->s_conn, cmd, arg);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_NET_UDP) && defined(NET_UDP_HAVE_STACK)
|
|
if (psock->s_type == SOCK_DGRAM ||
|
|
(psock->s_type == SOCK_CTRL &&
|
|
(psock->s_proto == 0 || psock->s_proto == IPPROTO_UDP)))
|
|
{
|
|
return udp_ioctl(psock->s_conn, cmd, arg);
|
|
}
|
|
#endif
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_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 inet_socketpair(FAR struct socket *psocks[2])
|
|
{
|
|
#if defined(CONFIG_NET_TCP) || defined(CONFIG_NET_UDP)
|
|
FAR struct socket *pserver = psocks[1];
|
|
#if defined(CONFIG_NET_TCP)
|
|
FAR struct socket server;
|
|
#endif
|
|
union sockaddr_u addr[2];
|
|
socklen_t len;
|
|
int ret;
|
|
|
|
/* Set the sock address to localhost */
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
if (psocks[0]->s_domain == AF_INET6)
|
|
{
|
|
struct in6_addr init_sin6_addr = IN6ADDR_LOOPBACK_INIT;
|
|
|
|
len = sizeof(addr[0].in6addr);
|
|
memset(&addr[0], 0, len);
|
|
addr[0].in6addr.sin6_family = psocks[0]->s_domain;
|
|
addr[0].in6addr.sin6_addr = init_sin6_addr;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
len = sizeof(addr[0].inaddr);
|
|
memset(&addr[0], 0, len);
|
|
addr[0].inaddr.sin_family = psocks[0]->s_domain;
|
|
addr[0].inaddr.sin_addr.s_addr = HTONL(INADDR_LOOPBACK);
|
|
}
|
|
|
|
memcpy(&addr[1], &addr[0], len);
|
|
|
|
ret = psock_bind(psocks[0], &addr[0].addr, len);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
psock_getsockname(psocks[0], &addr[0].addr, &len);
|
|
|
|
/* For SOCK_STREAM, Use proxy service handle to make temporary
|
|
* pserver process, psocks[1] will be replaced with a new accept handle
|
|
*/
|
|
|
|
#if defined(CONFIG_NET_TCP)
|
|
if (psocks[0]->s_type == SOCK_STREAM)
|
|
{
|
|
ret = psock_socket(psocks[1]->s_domain, psocks[1]->s_type,
|
|
psocks[1]->s_proto, &server);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
pserver = &server;
|
|
}
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
ret = psock_bind(pserver, &addr[1].addr, len);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
|
|
psock_getsockname(pserver, &addr[1].addr, &len);
|
|
|
|
#if defined(CONFIG_NET_UDP)
|
|
if (psocks[0]->s_type == SOCK_DGRAM)
|
|
{
|
|
ret = psock_connect(psocks[0], &addr[1].addr, len);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
|
|
ret = psock_connect(pserver, &addr[0].addr, len);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
}
|
|
#endif /* CONFIG_NET_UDP */
|
|
|
|
#if defined(CONFIG_NET_TCP)
|
|
if (psocks[0]->s_type == SOCK_STREAM)
|
|
{
|
|
FAR struct socket_conn_s *conn = psocks[1]->s_conn;
|
|
|
|
ret = psock_listen(pserver, 2);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
|
|
ret = psock_connect(psocks[0], &addr[1].addr, len);
|
|
if (ret < 0)
|
|
{
|
|
goto errout;
|
|
}
|
|
|
|
/* Release the resource of psocks[1], accept will replace
|
|
* this handle
|
|
*/
|
|
|
|
psock_close(psocks[1]);
|
|
|
|
ret = psock_accept(pserver, &addr[1].addr, &len, psocks[1],
|
|
conn->s_flags & _SF_NONBLOCK ? SOCK_NONBLOCK : 0);
|
|
}
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
errout:
|
|
#if defined(CONFIG_NET_TCP)
|
|
if (pserver->s_type == SOCK_STREAM)
|
|
{
|
|
psock_close(pserver);
|
|
}
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
return ret;
|
|
#else
|
|
return -EOPNOTSUPP;
|
|
#endif /* CONFIG_NET_TCP || CONFIG_NET_UDP */
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_shutdown
|
|
*
|
|
* Description:
|
|
* Performs the shutdown operation on an AF_INET or AF_INET6 socket
|
|
*
|
|
* Input Parameters:
|
|
* psock Socket instance
|
|
* how Specifies the type of shutdown
|
|
*
|
|
* Returned Value:
|
|
* 0: Success; Negated errno on failure
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int inet_shutdown(FAR struct socket *psock, int how)
|
|
{
|
|
switch (psock->s_type)
|
|
{
|
|
#ifdef CONFIG_NET_TCP
|
|
case SOCK_STREAM:
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
return tcp_shutdown(psock, how);
|
|
#else
|
|
nwarn("WARNING: SOCK_STREAM support is not available in this "
|
|
"configuration\n");
|
|
return -EAFNOSUPPORT;
|
|
#endif /* NET_TCP_HAVE_STACK */
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_sendfile
|
|
*
|
|
* Description:
|
|
* The inet_sendfile() call may be used only when the INET socket is in a
|
|
* connected state (so that the intended recipient is known).
|
|
*
|
|
* Input Parameters:
|
|
* psock An instance of the internal socket structure.
|
|
* buf Data to send
|
|
* len Length of data to send
|
|
* flags Send flags
|
|
*
|
|
* Returned Value:
|
|
* On success, returns the number of characters sent. On error,
|
|
* a negated errno value is returned. See sendfile() for a list
|
|
* appropriate error return values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_NET_SENDFILE
|
|
static ssize_t inet_sendfile(FAR struct socket *psock,
|
|
FAR struct file *infile, FAR off_t *offset,
|
|
size_t count)
|
|
{
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
if (psock->s_type == SOCK_STREAM)
|
|
{
|
|
return tcp_sendfile(psock, infile, offset, count);
|
|
}
|
|
#endif
|
|
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: inet_recvmsg
|
|
*
|
|
* Description:
|
|
* Implements the socket recvfrom interface for the case of the AF_INET
|
|
* and AF_INET6 address families. inet_recvmsg() receives messages from
|
|
* a socket, and may be used to receive data on a socket whether or not it
|
|
* is connection-oriented.
|
|
*
|
|
* If msg_name is not NULL, and the underlying protocol provides the source
|
|
* address, this source address is filled in. The argument 'msg_namelen' is
|
|
* initialized to the size of the buffer associated with msg_name, and
|
|
* modified on return to indicate the actual size of the address stored
|
|
* there.
|
|
*
|
|
* Input Parameters:
|
|
* psock - A pointer to a NuttX-specific, internal socket structure
|
|
* msg - Buffer to receive the message
|
|
* flags - Receive flags
|
|
*
|
|
* Returned Value:
|
|
* On success, returns the number of characters received. If no data is
|
|
* available to be received and the peer has performed an orderly shutdown,
|
|
* recvmsg() will return 0. Otherwise, on errors, a negated errno value is
|
|
* returned (see recvmsg() for the list of appropriate error values).
|
|
*
|
|
****************************************************************************/
|
|
|
|
static ssize_t inet_recvmsg(FAR struct socket *psock,
|
|
FAR struct msghdr *msg, int flags)
|
|
{
|
|
ssize_t ret;
|
|
|
|
/* If a 'from' address has been provided, verify that it is large
|
|
* enough to hold this address family.
|
|
*/
|
|
|
|
if (msg->msg_name)
|
|
{
|
|
socklen_t minlen;
|
|
|
|
/* Get the minimum socket length */
|
|
|
|
switch (psock->s_domain)
|
|
{
|
|
#ifdef CONFIG_NET_IPv4
|
|
case PF_INET:
|
|
{
|
|
minlen = sizeof(struct sockaddr_in);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
|
case PF_INET6:
|
|
{
|
|
minlen = sizeof(struct sockaddr_in6);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
DEBUGPANIC();
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (msg->msg_namelen < minlen)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/* Read from the network interface driver buffer.
|
|
* Or perform the TCP/IP or UDP recv() operation.
|
|
*/
|
|
|
|
switch (psock->s_type)
|
|
{
|
|
#ifdef CONFIG_NET_TCP
|
|
case SOCK_STREAM:
|
|
{
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
ret = psock_tcp_recvfrom(psock, msg, flags);
|
|
#else
|
|
ret = -ENOSYS;
|
|
#endif
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_TCP */
|
|
|
|
#ifdef CONFIG_NET_UDP
|
|
case SOCK_DGRAM:
|
|
{
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
ret = psock_udp_recvfrom(psock, msg, flags);
|
|
#else
|
|
ret = -ENOSYS;
|
|
#endif
|
|
}
|
|
break;
|
|
#endif /* CONFIG_NET_UDP */
|
|
|
|
#if defined(CONFIG_NET_TCP) || defined(CONFIG_NET_UDP)
|
|
case SOCK_CTRL:
|
|
{
|
|
nerr("ERROR: Inappropriate socket type: %d\n", psock->s_type);
|
|
ret = -EOPNOTSUPP;
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
{
|
|
nerr("ERROR: Unsupported socket type: %d\n", psock->s_type);
|
|
ret = -ENOSYS;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif /* NET_UDP_HAVE_STACK || NET_TCP_HAVE_STACK */
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: inet_close
|
|
*
|
|
* Description:
|
|
* Performs the close operation on an AF_INET or AF_INET6 socket instance
|
|
*
|
|
* Input Parameters:
|
|
* psock Socket instance
|
|
*
|
|
* Returned Value:
|
|
* 0 on success; -1 on error with errno set appropriately.
|
|
*
|
|
* Assumptions:
|
|
*
|
|
****************************************************************************/
|
|
|
|
int inet_close(FAR struct socket *psock)
|
|
{
|
|
/* Perform some pre-close operations for the AF_INET/AF_INET6 address
|
|
* types.
|
|
*/
|
|
|
|
#ifdef CONFIG_NET_TCP
|
|
if (psock->s_type == SOCK_STREAM ||
|
|
(psock->s_type == SOCK_CTRL &&
|
|
(psock->s_proto == 0 || psock->s_proto == IPPROTO_TCP)))
|
|
{
|
|
#ifdef NET_TCP_HAVE_STACK
|
|
FAR struct tcp_conn_s *conn = psock->s_conn;
|
|
int ret;
|
|
|
|
/* Is this the last reference to the connection structure (there
|
|
* could be more if the socket was dup'ed).
|
|
*/
|
|
|
|
if (conn->crefs <= 1)
|
|
{
|
|
/* Yes... Clost the socket */
|
|
|
|
ret = tcp_close(psock);
|
|
if (ret < 0)
|
|
{
|
|
/* This would normally occur only if there is a timeout
|
|
* from a lingering close.
|
|
*/
|
|
|
|
nerr("ERROR: tcp_close failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* No.. Just decrement the reference count */
|
|
|
|
conn->crefs--;
|
|
}
|
|
#else
|
|
nwarn("WARNING: SOCK_STREAM support is not available in this "
|
|
"configuration\n");
|
|
return -EAFNOSUPPORT;
|
|
#endif /* NET_TCP_HAVE_STACK */
|
|
}
|
|
else
|
|
#endif /* CONFIG_NET_TCP */
|
|
#ifdef CONFIG_NET_UDP
|
|
if (psock->s_type == SOCK_DGRAM ||
|
|
(psock->s_type == SOCK_CTRL &&
|
|
(psock->s_proto == 0 || psock->s_proto == IPPROTO_UDP)))
|
|
{
|
|
#ifdef NET_UDP_HAVE_STACK
|
|
FAR struct udp_conn_s *conn = psock->s_conn;
|
|
int ret;
|
|
|
|
/* Is this the last reference to the connection structure (there
|
|
* could be more if the socket was dup'ed).
|
|
*/
|
|
|
|
if (conn->crefs <= 1)
|
|
{
|
|
/* Yes... Clost the socket */
|
|
|
|
ret = udp_close(psock);
|
|
if (ret < 0)
|
|
{
|
|
/* This would normally occur only if there is a timeout
|
|
* from a lingering close.
|
|
*/
|
|
|
|
nerr("ERROR: udp_close failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* No.. Just decrement the reference count */
|
|
|
|
conn->crefs--;
|
|
}
|
|
#else
|
|
nwarn("WARNING: SOCK_DGRAM support is not available in this "
|
|
"configuration\n");
|
|
return -EAFNOSUPPORT;
|
|
#endif /* NET_UDP_HAVE_STACK */
|
|
}
|
|
else
|
|
#endif /* CONFIG_NET_UDP */
|
|
{
|
|
return -EBADF;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: inet_sockif
|
|
*
|
|
* Description:
|
|
* Return the socket interface associated with the inet address family.
|
|
*
|
|
* Input Parameters:
|
|
* family - Socket address family
|
|
* type - Socket type
|
|
* protocol - Socket protocol
|
|
*
|
|
* Returned Value:
|
|
* On success, a non-NULL instance of struct sock_intf_s is returned. NULL
|
|
* is returned only if the address family is not supported.
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR const struct sock_intf_s *
|
|
inet_sockif(sa_family_t family, int type, int protocol)
|
|
{
|
|
DEBUGASSERT(family == PF_INET || family == PF_INET6);
|
|
|
|
#if defined(HAVE_PFINET_SOCKETS) && defined(CONFIG_NET_ICMP_SOCKET)
|
|
/* PF_INET, ICMP data gram sockets are a special case of raw sockets */
|
|
|
|
if (family == PF_INET && (type == SOCK_DGRAM || type == SOCK_CTRL) &&
|
|
protocol == IPPROTO_ICMP)
|
|
{
|
|
return &g_icmp_sockif;
|
|
}
|
|
else
|
|
#endif
|
|
#if defined(HAVE_PFINET6_SOCKETS) && defined(CONFIG_NET_ICMPv6_SOCKET)
|
|
/* PF_INET, ICMP data gram sockets are a special case of raw sockets */
|
|
|
|
if (family == PF_INET6 && (type == SOCK_DGRAM || type == SOCK_CTRL ||
|
|
type == SOCK_RAW) && protocol == IPPROTO_ICMPV6)
|
|
{
|
|
return &g_icmpv6_sockif;
|
|
}
|
|
else
|
|
#endif
|
|
#if defined(NET_UDP_HAVE_STACK) || defined(NET_TCP_HAVE_STACK)
|
|
{
|
|
return &g_inet_sockif;
|
|
}
|
|
#else
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#endif /* HAVE_INET_SOCKETS */
|