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/*
*
* oFono - Open Source Telephony
*
* Copyright (C) 2015 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <ofono/types.h>
#include <gril.h>
#include "rilmodem-test-server.h"
#define MAX_REQUEST_SIZE 4096
struct server_data {
int server_sk;
ConnectFunc connect_func;
GIOChannel *server_io;
const struct rilmodem_test_data *rtd;
void *user_data;
};
/* Warning: length is stored in network order */
struct rsp_hdr {
uint32_t length;
uint32_t unsolicited;
uint32_t serial;
uint32_t error;
};
static gboolean read_server(gpointer data)
{
struct server_data *sd = data;
GIOStatus status;
gsize offset, rbytes, wbytes;
gchar *buf, *bufp;
uint32_t req_serial;
struct rsp_hdr rsp;
buf = g_malloc0(MAX_REQUEST_SIZE);
status = g_io_channel_read_chars(sd->server_io, buf, MAX_REQUEST_SIZE,
&rbytes, NULL);
g_assert(status == G_IO_STATUS_NORMAL);
g_assert(rbytes == sd->rtd->req_size);
/* validate len, and request_id */
g_assert(!memcmp(buf, sd->rtd->req_data, (sizeof(uint32_t) * 2)));
/*
* header: size (uint32), reqid (uin32), serial (uint32)
* header size == 16 ( excludes sizeof(size) )
*/
/* advance past request_no */
bufp = buf + (sizeof(uint32_t) * 2);
req_serial = (uint32_t) *bufp;
/* advance past serial_no */
bufp += sizeof(uint32_t);
/* validate the rest of the parcel... */
offset = (sizeof(uint32_t) * 3);
g_assert(!memcmp(bufp, sd->rtd->req_data + offset,
sd->rtd->req_size - offset));
/* Length does not include the length field. Network order. */
rsp.length = htonl(sizeof(rsp) - sizeof(rsp.length) +
sd->rtd->rsp_size);
rsp.unsolicited = 0;
rsp.serial = req_serial;
rsp.error = sd->rtd->rsp_error;
/* copy header */
memcpy(buf, &rsp, sizeof(rsp));
if (sd->rtd->rsp_size) {
bufp = buf + sizeof(rsp);
memcpy(bufp, sd->rtd->rsp_data, sd->rtd->rsp_size);
}
status = g_io_channel_write_chars(sd->server_io,
buf,
sizeof(rsp) + sd->rtd->rsp_size,
&wbytes, NULL);
/* FIXME: assert wbytes is correct */
g_assert(status == G_IO_STATUS_NORMAL);
g_free(buf);
g_io_channel_unref(sd->server_io);
return FALSE;
}
static gboolean on_socket_connected(GIOChannel *chan, GIOCondition cond,
gpointer data)
{
struct server_data *sd = data;
struct sockaddr saddr;
unsigned int len = sizeof(saddr);
int fd;
GIOStatus status;
g_assert(cond == G_IO_IN);
fd = accept(sd->server_sk, &saddr, &len);
g_assert(fd != -1);
sd->server_io = g_io_channel_unix_new(fd);
g_assert(sd->server_io != NULL);
status = g_io_channel_set_encoding(sd->server_io, NULL, NULL);
g_assert(status == G_IO_STATUS_NORMAL);
g_io_channel_set_buffered(sd->server_io, FALSE);
g_io_channel_set_close_on_unref(sd->server_io, TRUE);
if (sd->connect_func)
sd->connect_func(sd->user_data);
if (sd->rtd->unsol_test == FALSE)
g_idle_add(read_server, sd);
return FALSE;
}
void rilmodem_test_server_close(struct server_data *sd)
{
g_assert(sd->server_sk);
close(sd->server_sk);
g_free(sd);
}
struct server_data *rilmodem_test_server_create(ConnectFunc connect,
const struct rilmodem_test_data *test_data,
void *data)
{
GIOChannel *io;
struct sockaddr_un addr;
int retval;
struct server_data *sd;
sd = g_new0(struct server_data, 1);
sd->connect_func = connect;
sd->user_data = data;
sd->rtd = test_data;
sd->server_sk = socket(AF_UNIX, SOCK_STREAM, 0);
g_assert(sd->server_sk);
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, RIL_SERVER_SOCK_PATH, sizeof(addr.sun_path) - 1);
/* Unlink any existing socket for this session */
unlink(addr.sun_path);
retval = bind(sd->server_sk, (struct sockaddr *) &addr, sizeof(addr));
g_assert(retval >= 0);
retval = listen(sd->server_sk, 0);
g_assert(retval >= 0);
io = g_io_channel_unix_new(sd->server_sk);
g_assert(io != NULL);
g_io_channel_set_close_on_unref(io, TRUE);
g_io_add_watch_full(io, G_PRIORITY_DEFAULT,
G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
on_socket_connected, sd, NULL);
g_io_channel_unref(io);
return sd;
}
void rilmodem_test_server_write(struct server_data *sd,
const unsigned char *buf,
const size_t buf_len)
{
GIOStatus status;
gsize wbytes;
status = g_io_channel_write_chars(sd->server_io,
(const char *) buf,
buf_len,
&wbytes, NULL);
g_assert(status == G_IO_STATUS_NORMAL);
status = g_io_channel_flush(sd->server_io, NULL);
g_assert(status == G_IO_STATUS_NORMAL);
}
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