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/*
* Copyright (c) 2009-2013, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google, Inc. 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.
*/
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <cutils/sockets.h>
#include "debug.h"
#include "transport.h"
#include "utils.h"
#define container_of(ptr, type, member) \
((type*)((char*)(ptr) - offsetof(type, member)))
#define SOCKET_WORKING 0
#define SOCKET_STOPPED -1
struct socket_transport {
struct transport transport;
int fd;
};
struct socket_handle {
struct transport_handle handle;
int fd;
};
void socket_close(struct transport_handle *thandle)
{
struct socket_handle * handle = container_of(thandle, struct socket_handle, handle);
close(handle->fd);
}
struct transport_handle *socket_connect(struct transport *transport)
{
struct socket_handle *handle = calloc(sizeof(struct socket_handle), 1);
struct socket_transport *socket_transport = container_of(transport, struct socket_transport, transport);
struct sockaddr addr;
socklen_t alen = sizeof(addr);
handle->fd = accept(socket_transport->fd, &addr, &alen);
if (handle->fd < 0) {
D(WARN, "socket connect error");
return NULL;
}
D(DEBUG, "[ socket_thread - registering device ]");
return &handle->handle;
}
ssize_t socket_write(struct transport_handle *thandle, const void *data, size_t len)
{
ssize_t ret;
struct socket_handle *handle = container_of(thandle, struct socket_handle, handle);
D(DEBUG, "about to write (fd=%d, len=%zu)", handle->fd, len);
ret = bulk_write(handle->fd, data, len);
if (ret < 0) {
D(ERR, "ERROR: fd = %d, ret = %zd", handle->fd, ret);
return -1;
}
D(DEBUG, "[ socket_write done fd=%d ]", handle->fd);
return ret;
}
ssize_t socket_read(struct transport_handle *thandle, void *data, size_t len)
{
ssize_t ret;
struct socket_handle *handle = container_of(thandle, struct socket_handle, handle);
D(DEBUG, "about to read (fd=%d, len=%zu)", handle->fd, len);
ret = bulk_read(handle->fd, data, len);
if (ret < 0) {
D(ERR, "ERROR: fd = %d, ret = %zd", handle->fd, ret);
return -1;
}
D(DEBUG, "[ socket_read done fd=%d ret=%zd]", handle->fd, ret);
return ret;
}
static int listen_socket_init(struct socket_transport *socket_transport)
{
int s = android_get_control_socket("fastbootd");
if (s < 0) {
D(WARN, "android_get_control_socket(fastbootd): %s\n", strerror(errno));
return 0;
}
if (listen(s, 4) < 0) {
D(WARN, "listen(control socket): %s\n", strerror(errno));
return 0;
}
socket_transport->fd = s;
return 1;
}
int transport_socket_init()
{
struct socket_transport *socket_transport = malloc(sizeof(struct socket_transport));
socket_transport->transport.connect = socket_connect;
socket_transport->transport.close = socket_close;
socket_transport->transport.read = socket_read;
socket_transport->transport.write = socket_write;
if (!listen_socket_init(socket_transport)) {
D(ERR, "socket transport init failed");
free(socket_transport);
return 0;
}
transport_register(&socket_transport->transport);
return 1;
}
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