Matched changes NetworkSocketAPI

Responded to feedback from mbed-client implementation
to introduce a full feature set that should support most
of the use cases for the API.
pull/2231/head
Christopher Haster 2016-04-06 08:50:56 -05:00
parent b032d1886f
commit 697ac558be
3 changed files with 309 additions and 103 deletions

View File

@ -14,9 +14,9 @@
* limitations under the License.
*/
#include "mbed.h"
#include "LWIPInterface.h"
#include "mbed.h"
#include "lwip/inet.h"
#include "lwip/netif.h"
#include "lwip/dhcp.h"
@ -26,15 +26,11 @@
#include "netif/etharp.h"
#include "eth_arch.h"
#define LWIP_TIMEOUT 15000
/* TCP/IP and Network Interface Initialisation */
static struct netif netif;
static char ip_addr[NS_IP_SIZE] = "\0";
static char mac_addr[NS_MAC_SIZE] = "\0";
static char ip_addr[NSAPI_IP_SIZE] = "\0";
static char mac_addr[NSAPI_MAC_SIZE] = "\0";
static Semaphore tcpip_inited(0);
static Semaphore netif_linked(0);
@ -86,8 +82,7 @@ static void set_mac_address(void)
}
// LWIPInterface implementation
int32_t LWIPInterface::connect()
int LWIPInterface::connect()
{
// Set up network
set_mac_address();
@ -100,14 +95,14 @@ int32_t LWIPInterface::connect()
// Wait for an IP Address
// -1: error, 0: timeout
if (netif_up.wait(LWIP_TIMEOUT) < 0) {
return NS_ERROR_TIMEOUT;
if (netif_up.wait(1500) < 0) {
return NSAPI_ERROR_DHCP_FAILURE;
}
return 0;
}
int32_t LWIPInterface::disconnect()
int LWIPInterface::disconnect()
{
dhcp_release(&netif);
dhcp_stop(&netif);
@ -117,90 +112,204 @@ int32_t LWIPInterface::disconnect()
return 0;
}
const char *LWIPInterface::getIPAddress()
const char *LWIPInterface::get_ip_address()
{
return ip_addr;
}
const char *LWIPInterface::getMACAddress()
const char *LWIPInterface::get_mac_address()
{
return mac_addr;
}
SocketInterface *LWIPInterface::createSocket(ns_protocol_t proto)
void *LWIPInterface::socket_create(nsapi_protocol_t proto)
{
int type = (proto == NS_UDP) ? SOCK_DGRAM : SOCK_STREAM;
int type = (proto == NSAPI_UDP) ? SOCK_DGRAM : SOCK_STREAM;
int fd = lwip_socket(AF_INET, type, 0);
if (fd < 0) {
return 0;
}
return new LWIPSocket(fd);
return (void *)(fd+1);
}
void LWIPInterface::destroySocket(SocketInterface *siface)
void LWIPInterface::socket_destroy(void *handle)
{
LWIPSocket *socket = (LWIPSocket *)siface;
lwip_close(socket->fd);
delete socket;
int fd = (int)handle-1;
lwip_close(fd);
}
// TCP SocketInterface implementation
int32_t LWIPInterface::LWIPSocket::open(const char *ip, uint16_t port)
int LWIPInterface::socket_set_option(void *handle, int optname, const void *optval, unsigned optlen)
{
struct sockaddr_in host;
memset(&host, 0, sizeof host);
inet_aton(ip, &host.sin_addr);
host.sin_family = AF_INET;
host.sin_port = htons(port);
int fd = (int)handle-1;
return lwip_setsockopt(fd, SOL_SOCKET, optname, optval, (socklen_t)optlen);
}
if (lwip_connect(fd, (const struct sockaddr *)&host, sizeof host) < 0) {
return NS_ERROR_NO_CONNECTION;
int LWIPInterface::socket_get_option(void *handle, int optname, void *optval, unsigned *optlen)
{
int fd = (int)handle-1;
return lwip_getsockopt(fd, SOL_SOCKET, optname, optval, (socklen_t*)optlen);
}
int LWIPInterface::socket_bind(void *handle, int port)
{
int fd = (int)handle-1;
struct sockaddr_in sa;
memset(&sa, 0, sizeof sa);
sa.sin_family = AF_INET;
sa.sin_port = htons(port);
sa.sin_addr.s_addr = INADDR_ANY;
if (lwip_bind(fd, (const struct sockaddr *)&sa, sizeof sa) < 0) {
return NSAPI_ERROR_DEVICE_ERROR;
}
return 0;
}
int LWIPInterface::socket_listen(void *handle, int backlog)
{
return NSAPI_ERROR_UNSUPPORTED;
}
int LWIPInterface::socket_connect(void *handle, const SocketAddress &addr)
{
int fd = (int)handle-1;
struct sockaddr_in sa;
memset(&sa, 0, sizeof sa);
inet_aton(addr.get_ip_address(), &sa.sin_addr);
sa.sin_family = AF_INET;
sa.sin_port = htons(addr.get_port());
if (lwip_connect(fd, (const struct sockaddr *)&sa, sizeof sa) < 0) {
return NSAPI_ERROR_NO_CONNECTION;
}
return 0;
}
int32_t LWIPInterface::LWIPSocket::close()
bool LWIPInterface::socket_is_connected(void *handle)
{
return 0;
return true;
}
int32_t LWIPInterface::LWIPSocket::send(const void *voiddata, uint32_t size)
int LWIPInterface::socket_accept(void *handle, void **connection)
{
uint8_t *data = (uint8_t *)voiddata;
uint32_t writtenLen = 0;
return NSAPI_ERROR_UNSUPPORTED;
}
while (writtenLen < size) {
int ret = lwip_send(fd, data + writtenLen, size - writtenLen, 0);
int LWIPInterface::socket_send(void *handle, const void *p, unsigned size)
{
int fd = (int)handle-1;
uint8_t *data = (uint8_t *)p;
unsigned written = 0;
while (written < size) {
int ret = lwip_send(fd, data + written, size - written, 0);
if (ret > 0) {
writtenLen += ret;
written += ret;
} else if (ret == 0) {
return NS_ERROR_NO_CONNECTION;
return NSAPI_ERROR_NO_CONNECTION;
} else {
return NS_ERROR_DEVICE_ERROR;
return NSAPI_ERROR_DEVICE_ERROR;
}
}
return writtenLen;
return written;
}
int32_t LWIPInterface::LWIPSocket::recv(void *data, uint32_t size)
int LWIPInterface::socket_recv(void *handle, void *data, unsigned size)
{
int fd = (int)handle-1;
int ret = lwip_recv(fd, data, size, MSG_DONTWAIT);
if (ret > 0) {
return ret;
} else if (ret == 0) {
return NS_ERROR_NO_CONNECTION;
return NSAPI_ERROR_NO_CONNECTION;
} else if (ret == -1) {
return NS_ERROR_WOULD_BLOCK;
return NSAPI_ERROR_WOULD_BLOCK;
} else {
return NS_ERROR_DEVICE_ERROR;
return NSAPI_ERROR_DEVICE_ERROR;
}
}
int LWIPInterface::socket_sendto(void *handle, const SocketAddress &addr, const void *p, unsigned size)
{
int fd = (int)handle-1;
uint8_t *data = (uint8_t *)p;
unsigned written = 0;
struct sockaddr_in sa;
memset(&sa, 0, sizeof sa);
inet_aton(addr.get_ip_address(), &sa.sin_addr);
sa.sin_family = AF_INET;
sa.sin_port = htons(addr.get_port());
while (written < size) {
int ret = lwip_sendto(fd, data + written, size - written, 0,
(const struct sockaddr *)&sa, sizeof sa);
if (ret > 0) {
written += ret;
} else if (ret == 0) {
return NSAPI_ERROR_NO_CONNECTION;
} else {
return NSAPI_ERROR_DEVICE_ERROR;
}
}
return written;
}
int LWIPInterface::socket_recvfrom(void *handle, SocketAddress *addr, void *data, unsigned size)
{
int fd = (int)handle-1;
struct sockaddr_in sa;
socklen_t sa_len = sizeof sa;
int ret = lwip_recvfrom(fd, data, size, MSG_DONTWAIT,
(struct sockaddr *)&sa, &sa_len);
if (ret > 0 && addr) {
addr->set_ip_address(inet_ntoa(sa.sin_addr));
addr->set_port(ntohs(sa.sin_port));
}
if (ret > 0) {
return ret;
} else if (ret == 0) {
return NSAPI_ERROR_NO_CONNECTION;
} else if (ret == -1) {
return NSAPI_ERROR_WOULD_BLOCK;
} else {
return NSAPI_ERROR_DEVICE_ERROR;
}
}
int LWIPInterface::socket_close(void *handle, bool shutdown)
{
int fd = (int)handle-1;
if (shutdown) {
lwip_shutdown(fd, SHUT_RDWR);
}
lwip_close(fd);
return 0;
}
void LWIPInterface::socket_attach_accept(void *handle, void (*callback)(void *), void *id)
{
}
void LWIPInterface::socket_attach_send(void *handle, void (*callback)(void *), void *id)
{
}
void LWIPInterface::socket_attach_recv(void *handle, void (*callback)(void *), void *id)
{
}

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@ -28,36 +28,166 @@
class LWIPInterface : public EthernetInterface
{
public:
/** Start the interface
* @return 0 on success, negative on failure
*/
virtual int connect();
// Implementation of EthernetInterface
virtual int32_t connect();
virtual int32_t disconnect();
/** Stop the interface
* @return 0 on success, negative on failure
*/
virtual int disconnect();
// Implementation of NetworkInterface
virtual const char *getIPAddress();
virtual const char *getMACAddress();
/** Get the internally stored IP address
/return IP address of the interface or null if not yet connected
*/
virtual const char *get_ip_address();
virtual SocketInterface *createSocket(ns_protocol_t proto);
virtual void destroySocket(SocketInterface *socket);
/** Get the internally stored MAC address
/return MAC address of the interface
*/
virtual const char *get_mac_address();
private:
protected:
/** Create a socket
/param proto The type of socket to open, TCP or UDP
/return The alocated socket or null on failure
*/
virtual void *socket_create(nsapi_protocol_t proto);
// Implementation of the TCP SocketInterface for LWIP
class LWIPSocket : public SocketInterface
{
public:
/** Destroy a socket
/param socket Previously allocated socket
*/
virtual void socket_destroy(void *handle);
LWIPSocket(int fd) : fd(fd) {}
int fd;
/** Set socket options
\param handle Socket handle
\param optname Option ID
\param optval Option value
\param optlen Length of the option value
\return 0 on success, negative on failure
*/
virtual int socket_set_option(void *handle, int optname, const void *optval, unsigned int optlen);
// Implementation of SocketInterface
virtual int32_t open(const char *ip, uint16_t port);
virtual int32_t close();
/** Get socket options
\param handle Socket handle
\param optname Option ID
\param optval Buffer pointer where to write the option value
\param optlen Length of the option value
\return 0 on success, negative on failure
*/
virtual int socket_get_option(void *handle, int optname, void *optval, unsigned int *optlen);
virtual int32_t send(const void *data, uint32_t size);
virtual int32_t recv(void *data, uint32_t size);
};
/** Bind a server socket to a specific port
\param handle Socket handle
\param port The port to listen for incoming connections on
\return 0 on success, negative on failure.
*/
virtual int socket_bind(void *handle, int port);
/** Start listening for incoming connections
\param handle Socket handle
\param backlog Number of pending connections that can be queued up at any
one time [Default: 1]
\return 0 on success, negative on failure
*/
virtual int socket_listen(void *handle, int backlog);
/** Connects this TCP socket to the server
\param handle Socket handle
\param address SocketAddress to connect to
\return 0 on success, negative on failure
*/
virtual int socket_connect(void *handle, const SocketAddress &address);
/** Check if the socket is connected
\param handle Socket handle
\return true if connected, false otherwise
*/
virtual bool socket_is_connected(void *handle);
/** Accept a new connection.
\param handle Socket handle
\param socket A TCPSocket instance that will handle the incoming connection.
\return 0 on success, negative on failure.
\note This call is not-blocking, if this call would block, must
immediately return NSAPI_ERROR_WOULD_WAIT
*/
virtual int socket_accept(void *handle, void **connection);
/** Send data to the remote host
\param handle Socket handle
\param data The buffer to send to the host
\param size The length of the buffer to send
\return Number of written bytes on success, negative on failure
\note This call is not-blocking, if this call would block, must
immediately return NSAPI_ERROR_WOULD_WAIT
*/
virtual int socket_send(void *handle, const void *data, unsigned size);
/** Receive data from the remote host
\param handle Socket handle
\param data The buffer in which to store the data received from the host
\param size The maximum length of the buffer
\return Number of received bytes on success, negative on failure
\note This call is not-blocking, if this call would block, must
immediately return NSAPI_ERROR_WOULD_WAIT
*/
virtual int socket_recv(void *handle, void *data, unsigned size);
/** Send a packet to a remote endpoint
\param handle Socket handle
\param address The remote SocketAddress
\param data The packet to be sent
\param size The length of the packet to be sent
\return the number of written bytes on success, negative on failure
\note This call is not-blocking, if this call would block, must
immediately return NSAPI_ERROR_WOULD_WAIT
*/
virtual int socket_sendto(void *handle, const SocketAddress &address, const void *data, unsigned size);
/** Receive a packet from a remote endpoint
\param handle Socket handle
\param address Destination for the remote SocketAddress or null
\param buffer The buffer for storing the incoming packet data
If a packet is too long to fit in the supplied buffer,
excess bytes are discarded
\param size The length of the buffer
\return the number of received bytes on success, negative on failure
\note This call is not-blocking, if this call would block, must
immediately return NSAPI_ERROR_WOULD_WAIT
*/
virtual int socket_recvfrom(void *handle, SocketAddress *address, void *buffer, unsigned size);
/** Close the socket
\param handle Socket handle
\param shutdown free the left-over data in message queues
*/
virtual int socket_close(void *handle, bool shutdown);
/** Register a callback on when a new connection is ready
\param handle Socket handle
\param callback Function to call when accept will succeed, may be called in
interrupt context.
\param id Argument to pass to callback
*/
virtual void socket_attach_accept(void *handle, void (*callback)(void *), void *id);
/** Register a callback on when send is ready
\param handle Socket handle
\param callback Function to call when accept will succeed, may be called in
interrupt context.
\param id Argument to pass to callback
*/
virtual void socket_attach_send(void *handle, void (*callback)(void *), void *id);
/** Register a callback on when recv is ready
\param handle Socket handle
\param callback Function to call when accept will succeed, may be called in
interrupt context.
\param id Argument to pass to callback
*/
virtual void socket_attach_recv(void *handle, void (*callback)(void *), void *id);
};
#endif

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@ -1,33 +0,0 @@
/*
* Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/