Files
ModemManager/plugins/iridium/mm-bearer-iridium.c
Aleksander Morgado 064e92e9b7 api,simple: new 'multiplex' setting in bearer properties
Both the Simple.Connect() and Modem.CreateBearer() are updated to
allow a new 'multiplex' setting in the properties provided by the user
in both of these methods.

The new setting expects a MMBearerMultiplexSupport enum indicating
what kind of multiplex needs the user has:
 * none: if multiplex must not be used.
 * requested: if multiplex should be used if available.
 * required: if multiplex must be used.

The underlying implementations will take care of accepting or
rejecting the setting depending on the system and modem capabilities.
2021-03-10 10:59:19 +01:00

263 lines
7.6 KiB
C

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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:
*
* Copyright (C) 2012 Ammonit Measurement GmbH
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <ModemManager.h>
#define _LIBMM_INSIDE_MM
#include <libmm-glib.h>
#include "mm-bearer-iridium.h"
#include "mm-base-modem-at.h"
/* Allow up to 200s to get a proper IP connection */
#define BEARER_IRIDIUM_IP_TIMEOUT_DEFAULT 200
G_DEFINE_TYPE (MMBearerIridium, mm_bearer_iridium, MM_TYPE_BASE_BEARER)
/*****************************************************************************/
/* Connect */
typedef struct {
MMPortSerialAt *primary;
GError *saved_error;
} ConnectContext;
static void
connect_context_free (ConnectContext *ctx)
{
if (ctx->saved_error)
g_error_free (ctx->saved_error);
if (ctx->primary)
g_object_unref (ctx->primary);
g_free (ctx);
}
static MMBearerConnectResult *
connect_finish (MMBaseBearer *self,
GAsyncResult *res,
GError **error)
{
return g_task_propagate_pointer (G_TASK (res), error);
}
static void
connect_report_ready (MMBaseModem *modem,
GAsyncResult *res,
GTask *task)
{
ConnectContext *ctx;
const gchar *result;
/* If cancelled, complete */
if (g_task_return_error_if_cancelled (task)) {
g_object_unref (task);
return;
}
ctx = g_task_get_task_data (task);
/* If we got a proper extended reply, build the new error to be set */
result = mm_base_modem_at_command_full_finish (modem, res, NULL);
if (result && g_str_has_prefix (result, "+CEER: ") && strlen (result) > 7) {
g_task_return_new_error (task,
ctx->saved_error->domain,
ctx->saved_error->code,
"%s", &result[7]);
} else {
/* Otherwise, take the original error as it was */
g_task_return_error (task, ctx->saved_error);
ctx->saved_error = NULL;
}
g_object_unref (task);
}
static void
dial_ready (MMBaseModem *modem,
GAsyncResult *res,
GTask *task)
{
ConnectContext *ctx;
MMBearerIpConfig *config;
ctx = g_task_get_task_data (task);
/* DO NOT check for cancellable here. If we got here without errors, the
* bearer is really connected and therefore we need to reflect that in
* the state machine. */
mm_base_modem_at_command_full_finish (modem, res, &(ctx->saved_error));
if (ctx->saved_error) {
/* Try to get more information why it failed */
mm_base_modem_at_command_full (
modem,
ctx->primary,
"+CEER",
3,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback)connect_report_ready,
task);
return;
}
/* Port is connected; update the state */
mm_port_set_connected (MM_PORT (ctx->primary), TRUE);
/* Build IP config; always PPP based */
config = mm_bearer_ip_config_new ();
mm_bearer_ip_config_set_method (config, MM_BEARER_IP_METHOD_PPP);
/* Return operation result */
g_task_return_pointer (
task,
mm_bearer_connect_result_new (MM_PORT (ctx->primary), config, NULL),
(GDestroyNotify)mm_bearer_connect_result_unref);
g_object_unref (task);
g_object_unref (config);
}
static void
service_type_ready (MMBaseModem *modem,
GAsyncResult *res,
GTask *task)
{
ConnectContext *ctx;
GError *error = NULL;
/* If cancelled, complete */
if (g_task_return_error_if_cancelled (task)) {
g_object_unref (task);
return;
}
ctx = g_task_get_task_data (task);
/* Errors setting the service type will be critical */
mm_base_modem_at_command_full_finish (modem, res, &error);
if (error) {
g_task_return_error (task, error);
g_object_unref (task);
return;
}
/* We just use the default number to dial in the Iridium network. Also note
* that we won't specify a specific port to use; Iridium modems only expose
* one. */
mm_base_modem_at_command_full (
modem,
ctx->primary,
"ATDT008816000025",
MM_BASE_BEARER_DEFAULT_CONNECTION_TIMEOUT,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback)dial_ready,
task);
}
static void
connect (MMBaseBearer *self,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
ConnectContext *ctx;
GTask *task;
MMBaseModem *modem = NULL;
task = g_task_new (self, cancellable, callback, user_data);
if (mm_bearer_properties_get_multiplex (mm_base_bearer_peek_config (self)) == MM_BEARER_MULTIPLEX_SUPPORT_REQUIRED) {
g_task_return_new_error (task, MM_CORE_ERROR, MM_CORE_ERROR_UNSUPPORTED,
"Multiplex support not available");
g_object_unref (task);
return;
}
g_object_get (self,
MM_BASE_BEARER_MODEM, &modem,
NULL);
g_assert (modem);
/* Don't bother to get primary and check if connected and all that; we
* already do this check when sending the ATDT call */
/* In this context, we only keep the stuff we'll need later */
ctx = g_new0 (ConnectContext, 1);
ctx->primary = mm_base_modem_get_port_primary (modem);
g_task_set_task_data (task, ctx, (GDestroyNotify) connect_context_free);
/* Bearer service type set to 9600bps (V.110), which behaves better than the
* default 9600bps (V.32). */
mm_base_modem_at_command_full (
modem,
ctx->primary,
"+CBST=71,0,1",
3,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback)service_type_ready,
task);
g_object_unref (modem);
}
/*****************************************************************************/
MMBaseBearer *
mm_bearer_iridium_new (MMBroadbandModemIridium *modem,
MMBearerProperties *config)
{
MMBaseBearer *bearer;
/* The Iridium bearer inherits from MMBaseBearer (so it's not a MMBroadbandBearer)
* and that means that the object is not async-initable, so we just use
* g_object_get() here */
bearer = g_object_new (MM_TYPE_BEARER_IRIDIUM,
MM_BASE_BEARER_MODEM, modem,
MM_BASE_BEARER_CONFIG, config,
"ip-timeout", BEARER_IRIDIUM_IP_TIMEOUT_DEFAULT,
NULL);
/* Only export valid bearers */
mm_base_bearer_export (bearer);
return bearer;
}
static void
mm_bearer_iridium_init (MMBearerIridium *self)
{
}
static void
mm_bearer_iridium_class_init (MMBearerIridiumClass *klass)
{
MMBaseBearerClass *base_bearer_class = MM_BASE_BEARER_CLASS (klass);
/* Virtual methods */
base_bearer_class->connect = connect;
base_bearer_class->connect_finish = connect_finish;
base_bearer_class->load_connection_status = NULL;
base_bearer_class->load_connection_status_finish = NULL;
}