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-rw-r--r--nuttx/net/net_close.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/nuttx/net/net_close.c b/nuttx/net/net_close.c
deleted file mode 100644
index dce87ba47..000000000
--- a/nuttx/net/net_close.c
+++ /dev/null
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-/****************************************************************************
- * net/net_close.c
- *
- * Copyright (C) 2007-2012 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#ifdef CONFIG_NET
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <stdint.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <arch/irq.h>
-#include <nuttx/net/uip/uip-arch.h>
-
-#include "net_internal.h"
-#include "uip/uip_internal.h"
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-#ifdef CONFIG_NET_TCP
-struct tcp_close_s
-{
- FAR struct socket *cl_psock; /* Reference to the TCP socket */
- FAR struct uip_callback_s *cl_cb; /* Reference to TCP callback instance */
- sem_t cl_sem; /* Semaphore signals disconnect completion */
-};
-#endif
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Function: netclose_interrupt
- *
- * Description:
- * Handle uIP callback events.
- *
- * Parameters:
- * conn - uIP TCP connection structure
- *
- * Returned Value:
- * None
- *
- * Assumptions:
- * Called from normal user-level logic
- *
- ****************************************************************************/
-
-#ifdef CONFIG_NET_TCP
-static uint16_t netclose_interrupt(struct uip_driver_s *dev, void *pvconn,
- void *pvpriv, uint16_t flags)
-{
- struct tcp_close_s *pstate = (struct tcp_close_s *)pvpriv;
-
- nllvdbg("flags: %04x\n", flags);
-
- if (pstate)
- {
- /* UIP_CLOSE: The remote host has closed the connection
- * UIP_ABORT: The remote host has aborted the connection
- */
-
- if ((flags & (UIP_CLOSE|UIP_ABORT)) != 0)
- {
- /* The disconnection is complete */
-
- pstate->cl_cb->flags = 0;
- pstate->cl_cb->priv = NULL;
- pstate->cl_cb->event = NULL;
- sem_post(&pstate->cl_sem);
- nllvdbg("Resuming\n");
- }
- else
- {
- /* Drop data received in this state and make sure that UIP_CLOSE
- * is set in the response
- */
-
- dev->d_len = 0;
- return (flags & ~UIP_NEWDATA) | UIP_CLOSE;
- }
- }
-
- return flags;
-}
-#endif /* CONFIG_NET_TCP */
-
-/****************************************************************************
- * Function: netclose_disconnect
- *
- * Description:
- * Break any current TCP connection
- *
- * Parameters:
- * conn - uIP TCP connection structure
- *
- * Returned Value:
- * None
- *
- * Assumptions:
- * Called from normal user-level logic
- *
- ****************************************************************************/
-
-#ifdef CONFIG_NET_TCP
-static inline void netclose_disconnect(FAR struct socket *psock)
-{
- struct tcp_close_s state;
- uip_lock_t flags;
-
- /* Interrupts are disabled here to avoid race conditions */
-
- flags = uip_lock();
-
- /* Is the TCP socket in a connected state? */
-
- if (_SS_ISCONNECTED(psock->s_flags))
- {
- struct uip_conn *conn = (struct uip_conn*)psock->s_conn;
-
- /* Check for the case where the host beat us and disconnected first */
-
- if (conn->tcpstateflags == UIP_ESTABLISHED)
- {
- /* Set up to receive TCP data event callbacks */
-
- state.cl_cb = uip_tcpcallbackalloc(conn);
- if (state.cl_cb)
- {
- state.cl_psock = psock;
- sem_init(&state.cl_sem, 0, 0);
-
- state.cl_cb->flags = UIP_NEWDATA|UIP_POLL|UIP_CLOSE|UIP_ABORT;
- state.cl_cb->priv = (void*)&state;
- state.cl_cb->event = netclose_interrupt;
-
- /* Notify the device driver of the availaibilty of TX data */
-
- netdev_txnotify(&conn->ripaddr);
-
- /* Wait for the disconnect event */
-
- (void)uip_lockedwait(&state.cl_sem);
-
- /* We are now disconnected */
-
- sem_destroy(&state.cl_sem);
- uip_tcpcallbackfree(conn, state.cl_cb);
- }
- }
- }
-
- uip_unlock(flags);
-}
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Function: psock_close
- *
- * Description:
- * Performs the close operation on a socket instance
- *
- * Parameters:
- * psock Socket instance
- *
- * Returned Value:
- * 0 on success; -1 on error with errno set appropriately.
- *
- * Assumptions:
- *
- ****************************************************************************/
-
-int psock_close(FAR struct socket *psock)
-{
- int err;
-
- /* Verify that the sockfd corresponds to valid, allocated socket */
-
- if (!psock || psock->s_crefs <= 0)
- {
- err = EBADF;
- goto errout;
- }
-
- /* We perform the uIP close operation only if this is the last count on the socket.
- * (actually, I think the socket crefs only takes the values 0 and 1 right now).
- */
-
- if (psock->s_crefs <= 1)
- {
- /* Perform uIP side of the close depending on the protocol type */
-
- switch (psock->s_type)
- {
-#ifdef CONFIG_NET_TCP
- case SOCK_STREAM:
- {
- struct uip_conn *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->crefs <= 1)
- {
- /* Yes... free the connection structure */
-
- uip_unlisten(conn); /* No longer accepting connections */
- netclose_disconnect(psock); /* Break any current connections */
- conn->crefs = 0; /* No more references on the connection */
- uip_tcpfree(conn); /* Free uIP resources */
- }
- else
- {
- /* No.. Just decrement the reference count */
-
- conn->crefs--;
- }
- }
- break;
-#endif
-
-#ifdef CONFIG_NET_UDP
- case SOCK_DGRAM:
- {
- struct uip_udp_conn *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->crefs <= 1)
- {
- /* Yes... free the connection structure */
-
- conn->crefs = 0; /* No more references on the connection */
- uip_udpfree(psock->s_conn); /* Free uIP resources */
- }
- else
- {
- /* No.. Just decrement the reference count */
-
- conn->crefs--;
- }
- }
- break;
-#endif
-
- default:
- err = EBADF;
- goto errout;
- }
- }
-
- /* Then release our reference on the socket structure containing the connection */
-
- sock_release(psock);
- return OK;
-
-errout:
- errno = err;
- return ERROR;
-}
-
-/****************************************************************************
- * Function: net_close
- *
- * Description:
- * Performs the close operation on socket descriptors
- *
- * Parameters:
- * sockfd Socket descriptor of socket
- *
- * Returned Value:
- * 0 on success; -1 on error with errno set appropriately.
- *
- * Assumptions:
- *
- ****************************************************************************/
-
-int net_close(int sockfd)
-{
- return psock_close(sockfd_socket(sockfd));
-}
-
-#endif /* CONFIG_NET */
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