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cf3f3ffcd0da1ef5512bf4a2dce4e0e1861acbc7
ModemManager/plugins/option/mm-broadband-bearer-hso.c
T
Aleksander Morgado 09d563fd34 hso: make report_connection_status() a separate logical block 
This block is a subclassed method from MMBaseBearer, which we just
happen to also use as part of the 3GPP dial logic in the connection
attempt.

So make it a separate logical block, and call the processing of the
connection attempt if one is found.

This change makes it similar to the same logic in the Icera plugin.
2017-12-05 10:55:41 +01:00

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/* -*- 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) 2008 - 2009 Novell, Inc.
* Copyright (C) 2009 - 2012 Red Hat, Inc.
* Copyright (C) 2012 Aleksander Morgado <aleksander@gnu.org>
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <arpa/inet.h>
#include <ModemManager.h>
#define _LIBMM_INSIDE_MM
#include <libmm-glib.h>
#include "mm-base-modem-at.h"
#include "mm-broadband-bearer-hso.h"
#include "mm-log.h"
#include "mm-modem-helpers.h"
#include "mm-daemon-enums-types.h"
G_DEFINE_TYPE (MMBroadbandBearerHso, mm_broadband_bearer_hso, MM_TYPE_BROADBAND_BEARER);
struct _MMBroadbandBearerHsoPrivate {
guint auth_idx;
GTask *connect_pending;
guint connect_pending_id;
gulong connect_port_closed_id;
};
/*****************************************************************************/
/* 3GPP IP config retrieval (sub-step of the 3GPP Connection sequence) */
typedef struct {
MMBaseModem *modem;
MMPortSerialAt *primary;
guint cid;
} GetIpConfig3gppContext;
static void
get_ip_config_context_free (GetIpConfig3gppContext *ctx)
{
g_object_unref (ctx->primary);
g_object_unref (ctx->modem);
g_slice_free (GetIpConfig3gppContext, ctx);
}
static gboolean
get_ip_config_3gpp_finish (MMBroadbandBearer *self,
GAsyncResult *res,
MMBearerIpConfig **ipv4_config,
MMBearerIpConfig **ipv6_config,
GError **error)
{
MMBearerIpConfig *ip_config;
ip_config = g_task_propagate_pointer (G_TASK (res), error);
if (!ip_config)
return FALSE;
/* No IPv6 for now */
*ipv4_config = ip_config; /* Transfer ownership */
*ipv6_config = NULL;
return TRUE;
}
#define OWANDATA_TAG "_OWANDATA: "
static void
ip_config_ready (MMBaseModem *modem,
GAsyncResult *res,
GTask *task)
{
GetIpConfig3gppContext *ctx;
MMBearerIpConfig *ip_config = NULL;
const gchar *response;
GError *error = NULL;
gchar **items;
gchar *dns[3] = { 0 };
guint i;
guint dns_i;
response = mm_base_modem_at_command_full_finish (modem, res, &error);
if (error) {
g_task_return_error (task, error);
g_object_unref (task);
return;
}
/* TODO: use a regex to parse this */
/* Check result */
if (!g_str_has_prefix (response, OWANDATA_TAG)) {
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Couldn't get IP config: invalid response '%s'",
response);
g_object_unref (task);
return;
}
ctx = g_task_get_task_data (task);
response = mm_strip_tag (response, OWANDATA_TAG);
items = g_strsplit (response, ", ", 0);
for (i = 0, dns_i = 0; items[i]; i++) {
if (i == 0) { /* CID */
gint num;
if (!mm_get_int_from_str (items[i], &num) ||
num != ctx->cid) {
error = g_error_new (MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Unknown CID in OWANDATA response ("
"got %d, expected %d)", (guint) num, ctx->cid);
break;
}
} else if (i == 1) { /* IP address */
guint32 tmp;
if (!inet_pton (AF_INET, items[i], &tmp))
break;
ip_config = mm_bearer_ip_config_new ();
mm_bearer_ip_config_set_method (ip_config, MM_BEARER_IP_METHOD_STATIC);
mm_bearer_ip_config_set_address (ip_config, items[i]);
mm_bearer_ip_config_set_prefix (ip_config, 32);
} else if (i == 3 || i == 4) { /* DNS entries */
guint32 tmp;
if (!inet_pton (AF_INET, items[i], &tmp)) {
g_clear_object (&ip_config);
break;
}
dns[dns_i++] = items[i];
}
}
if (!ip_config) {
if (error)
g_task_return_error (task, error);
else
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Couldn't get IP config: couldn't parse response '%s'",
response);
} else {
/* If we got DNS entries, set them in the IP config */
if (dns[0])
mm_bearer_ip_config_set_dns (ip_config, (const gchar **)dns);
g_task_return_pointer (task, ip_config, g_object_unref);
}
g_object_unref (task);
g_strfreev (items);
}
static void
get_ip_config_3gpp (MMBroadbandBearer *self,
MMBroadbandModem *modem,
MMPortSerialAt *primary,
MMPortSerialAt *secondary,
MMPort *data,
guint cid,
MMBearerIpFamily ip_family,
GAsyncReadyCallback callback,
gpointer user_data)
{
GetIpConfig3gppContext *ctx;
GTask *task;
gchar *command;
ctx = g_slice_new0 (GetIpConfig3gppContext);
ctx->modem = g_object_ref (modem);
ctx->primary = g_object_ref (primary);
ctx->cid = cid;
task = g_task_new (self, NULL, callback, user_data);
g_task_set_task_data (task, ctx, (GDestroyNotify)get_ip_config_context_free);
command = g_strdup_printf ("AT_OWANDATA=%d", cid);
mm_base_modem_at_command_full (
MM_BASE_MODEM (modem),
primary,
command,
3,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback)ip_config_ready,
task);
g_free (command);
}
/*****************************************************************************/
/* 3GPP Dialing (sub-step of the 3GPP Connection sequence) */
typedef struct {
MMBaseModem *modem;
MMPortSerialAt *primary;
guint cid;
MMPort *data;
guint auth_idx;
GError *saved_error;
} Dial3gppContext;
static void
dial_3gpp_context_free (Dial3gppContext *ctx)
{
g_assert (!ctx->saved_error);
g_clear_object (&ctx->data);
g_clear_object (&ctx->primary);
g_clear_object (&ctx->modem);
g_slice_free (Dial3gppContext, ctx);
}
static MMPort *
dial_3gpp_finish (MMBroadbandBearer *self,
GAsyncResult *res,
GError **error)
{
return MM_PORT (g_task_propagate_pointer (G_TASK (res), error));
}
static void
connect_reset_ready (MMBaseModem *modem,
GAsyncResult *res,
GTask *task)
{
Dial3gppContext *ctx;
ctx = g_task_get_task_data (task);
mm_base_modem_at_command_full_finish (modem, res, NULL);
/* When reset is requested, it was either cancelled or an error was stored */
if (!g_task_return_error_if_cancelled (task)) {
g_assert (ctx->saved_error);
g_task_return_error (task, ctx->saved_error);
ctx->saved_error = NULL;
}
g_object_unref (task);
}
static void
connect_reset (GTask *task)
{
Dial3gppContext *ctx;
gchar *command;
ctx = g_task_get_task_data (task);
/* Need to reset the connection attempt */
command = g_strdup_printf ("AT_OWANCALL=%d,0,1", ctx->cid);
mm_base_modem_at_command_full (ctx->modem,
ctx->primary,
command,
3,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback)connect_reset_ready,
task);
g_free (command);
}
static void
process_pending_connect_attempt (MMBroadbandBearerHso *self,
MMBearerConnectionStatus status)
{
GTask *task;
Dial3gppContext *ctx;
/* Recover task and remove both cancellation and timeout (if any)*/
g_assert (self->priv->connect_pending);
task = self->priv->connect_pending;
self->priv->connect_pending = NULL;
ctx = g_task_get_task_data (task);
if (self->priv->connect_pending_id) {
g_source_remove (self->priv->connect_pending_id);
self->priv->connect_pending_id = 0;
}
if (self->priv->connect_port_closed_id) {
g_signal_handler_disconnect (ctx->primary, self->priv->connect_port_closed_id);
self->priv->connect_port_closed_id = 0;
}
/* Reporting connected */
if (status == MM_BEARER_CONNECTION_STATUS_CONNECTED) {
/* If we wanted to get cancelled before, do it now. */
if (g_cancellable_is_cancelled (g_task_get_cancellable (task))) {
connect_reset (task);
return;
}
g_task_return_pointer (task, g_object_ref (ctx->data), g_object_unref);
g_object_unref (task);
return;
}
/* Received CONNECTION_FAILED or DISCONNECTED during a connection attempt,
* so return a failed error. Note that if the cancellable has been cancelled
* already, a cancelled error would be returned instead. */
g_task_return_new_error (task, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Call setup failed");
g_object_unref (task);
}
static gboolean
connect_timed_out_cb (MMBroadbandBearerHso *self)
{
GTask *task;
Dial3gppContext *ctx;
/* Cleanup timeout ID */
self->priv->connect_pending_id = 0;
/* Recover task and own it */
task = self->priv->connect_pending;
self->priv->connect_pending = NULL;
g_assert (task);
ctx = g_task_get_task_data (task);
/* Remove closed port watch, if found */
if (self->priv->connect_port_closed_id) {
g_signal_handler_disconnect (ctx->primary, self->priv->connect_port_closed_id);
self->priv->connect_port_closed_id = 0;
}
/* Setup error to return after the reset */
g_assert (!ctx->saved_error);
ctx->saved_error = g_error_new (MM_MOBILE_EQUIPMENT_ERROR,
MM_MOBILE_EQUIPMENT_ERROR_NETWORK_TIMEOUT,
"Connection attempt timed out");
/* It's probably pointless to try to reset this here, but anyway... */
connect_reset (task);
return G_SOURCE_REMOVE;
}
static void
forced_close_cb (MMBroadbandBearerHso *self)
{
/* Just treat the forced close event as any other unsolicited message */
mm_base_bearer_report_connection_status (MM_BASE_BEARER (self),
MM_BEARER_CONNECTION_STATUS_CONNECTION_FAILED);
}
static void
activate_ready (MMBaseModem *modem,
GAsyncResult *res,
MMBroadbandBearerHso *self)
{
GTask *task;
Dial3gppContext *ctx;
GError *error = NULL;
task = self->priv->connect_pending;
self->priv->connect_pending = NULL;
/* Try to recover the connection task. If none found, it means the
* task was already completed and we have nothing else to do.
* But note that we won't take owneship of the task yet! */
if (!task) {
mm_dbg ("Connection context was finished already by an unsolicited message");
/* Run _finish() to finalize the async call, even if we don't care
* about the result */
mm_base_modem_at_command_full_finish (modem, res, NULL);
goto out;
}
/* From now on, if we get cancelled, we'll need to run the connection
* reset ourselves just in case */
/* Errors on the dial command are fatal */
if (!mm_base_modem_at_command_full_finish (modem, res, &error)) {
g_task_return_error (task, error);
g_object_unref (task);
goto out;
}
/* Track the task again */
self->priv->connect_pending = task;
/* We will now setup a timeout and keep the context in the bearer's private.
* Reports of modem being connected will arrive via unsolicited messages.
* This timeout should be long enough. Actually... ideally should never get
* reached. */
self->priv->connect_pending_id = g_timeout_add_seconds (60,
(GSourceFunc)connect_timed_out_cb,
self);
/* If we get the port closed, we treat as a connect error */
ctx = g_task_get_task_data (task);
self->priv->connect_port_closed_id = g_signal_connect_swapped (ctx->primary,
"forced-close",
G_CALLBACK (forced_close_cb),
self);
out:
/* Balance refcount with the extra ref we passed to command_full() */
g_object_unref (self);
}
static void authenticate (GTask *task);
static void
authenticate_ready (MMBaseModem *modem,
GAsyncResult *res,
GTask *task)
{
MMBroadbandBearerHso *self;
Dial3gppContext *ctx;
gchar *command;
/* If cancelled, complete */
if (g_task_return_error_if_cancelled (task)) {
g_object_unref (task);
return;
}
self = g_task_get_source_object (task);
ctx = g_task_get_task_data (task);
if (!mm_base_modem_at_command_full_finish (modem, res, NULL)) {
/* Try the next auth command */
ctx->auth_idx++;
authenticate (task);
return;
}
/* Store which auth command worked, for next attempts */
self->priv->auth_idx = ctx->auth_idx;
/* The unsolicited response to AT_OWANCALL may come before the OK does.
* We will keep the connection context in the bearer private data so
* that it is accessible from the unsolicited message handler. Note
* also that we do NOT pass the ctx to the GAsyncReadyCallback, as it
* may not be valid any more when the callback is called (it may be
* already completed in the unsolicited handling) */
g_assert (self->priv->connect_pending == NULL);
self->priv->connect_pending = task;
/* Success, activate the PDP context and start the data session */
command = g_strdup_printf ("AT_OWANCALL=%d,1,1", ctx->cid);
mm_base_modem_at_command_full (ctx->modem,
ctx->primary,
command,
3,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback) activate_ready,
g_object_ref (self)); /* we pass the bearer object! */
g_free (command);
}
const gchar *auth_commands[] = {
"$QCPDPP",
/* Icera-based devices (GI0322/Quicksilver, iCON 505) don't implement
* $QCPDPP, but instead use _OPDPP with the same arguments.
*/
"_OPDPP",
NULL
};
static void
authenticate (GTask *task)
{
MMBroadbandBearerHso *self;
Dial3gppContext *ctx;
gchar *command;
const gchar *user;
const gchar *password;
MMBearerAllowedAuth allowed_auth;
self = g_task_get_source_object (task);
ctx = g_task_get_task_data (task);
if (!auth_commands[ctx->auth_idx]) {
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Couldn't run HSO authentication");
g_object_unref (task);
return;
}
user = mm_bearer_properties_get_user (mm_base_bearer_peek_config (MM_BASE_BEARER (self)));
password = mm_bearer_properties_get_password (mm_base_bearer_peek_config (MM_BASE_BEARER (self)));
allowed_auth = mm_bearer_properties_get_allowed_auth (mm_base_bearer_peek_config (MM_BASE_BEARER (self)));
/* Both user and password are required; otherwise firmware returns an error */
if (!user || !password || allowed_auth == MM_BEARER_ALLOWED_AUTH_NONE) {
mm_dbg ("Not using authentication");
command = g_strdup_printf ("%s=%d,0",
auth_commands[ctx->auth_idx],
ctx->cid);
} else {
gchar *quoted_user;
gchar *quoted_password;
guint hso_auth;
if (allowed_auth == MM_BEARER_ALLOWED_AUTH_UNKNOWN) {
mm_dbg ("Using default (PAP) authentication method");
hso_auth = 1;
} else if (allowed_auth & MM_BEARER_ALLOWED_AUTH_PAP) {
mm_dbg ("Using PAP authentication method");
hso_auth = 1;
} else if (allowed_auth & MM_BEARER_ALLOWED_AUTH_CHAP) {
mm_dbg ("Using CHAP authentication method");
hso_auth = 2;
} else {
gchar *str;
str = mm_bearer_allowed_auth_build_string_from_mask (allowed_auth);
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_UNSUPPORTED,
"Cannot use any of the specified authentication methods (%s)",
str);
g_object_unref (task);
g_free (str);
return;
}
quoted_user = mm_port_serial_at_quote_string (user);
quoted_password = mm_port_serial_at_quote_string (password);
command = g_strdup_printf ("%s=%d,%u,%s,%s",
auth_commands[ctx->auth_idx],
ctx->cid,
hso_auth,
quoted_password,
quoted_user);
g_free (quoted_user);
g_free (quoted_password);
}
mm_base_modem_at_command_full (ctx->modem,
ctx->primary,
command,
3,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback)authenticate_ready,
task);
g_free (command);
}
static void
dial_3gpp (MMBroadbandBearer *_self,
MMBaseModem *modem,
MMPortSerialAt *primary,
guint cid,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
MMBroadbandBearerHso *self = MM_BROADBAND_BEARER_HSO (_self);
GTask *task;
Dial3gppContext *ctx;
g_assert (primary != NULL);
task = g_task_new (self, cancellable, callback, user_data);
ctx = g_slice_new0 (Dial3gppContext);
ctx->modem = g_object_ref (modem);
ctx->primary = g_object_ref (primary);
ctx->cid = cid;
g_task_set_task_data (task, ctx, (GDestroyNotify)dial_3gpp_context_free);
/* Always start with the index that worked last time
* (will be 0 the first time)*/
ctx->auth_idx = self->priv->auth_idx;
/* We need a net data port */
ctx->data = mm_base_modem_get_best_data_port (modem, MM_PORT_TYPE_NET);
if (!ctx->data) {
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_NOT_FOUND,
"No valid data port found to launch connection");
g_object_unref (task);
return;
}
authenticate (task);
}
/*****************************************************************************/
/* 3GPP disconnect */
typedef struct {
MMBaseModem *modem;
MMPortSerialAt *primary;
} DisconnectContext;
static void
disconnect_context_free (DisconnectContext *ctx)
{
g_object_unref (ctx->primary);
g_object_unref (ctx->modem);
g_free (ctx);
}
static gboolean
disconnect_3gpp_finish (MMBroadbandBearer *self,
GAsyncResult *res,
GError **error)
{
return g_task_propagate_boolean (G_TASK (res), error);
}
static void
disconnect_owancall_ready (MMBaseModem *modem,
GAsyncResult *res,
GTask *task)
{
GError *error = NULL;
/* Ignore errors for now */
mm_base_modem_at_command_full_finish (modem, res, &error);
if (error) {
mm_dbg ("Disconnection failed (not fatal): %s", error->message);
g_error_free (error);
}
g_task_return_boolean (task, TRUE);
g_object_unref (task);
}
static void
disconnect_3gpp (MMBroadbandBearer *self,
MMBroadbandModem *modem,
MMPortSerialAt *primary,
MMPortSerialAt *secondary,
MMPort *data,
guint cid,
GAsyncReadyCallback callback,
gpointer user_data)
{
gchar *command;
DisconnectContext *ctx;
GTask *task;
g_assert (primary != NULL);
ctx = g_new0 (DisconnectContext, 1);
ctx->modem = MM_BASE_MODEM (g_object_ref (modem));
ctx->primary = g_object_ref (primary);
task = g_task_new (self, NULL, callback, user_data);
g_task_set_task_data (task, ctx, (GDestroyNotify)disconnect_context_free);
/* Use specific CID */
command = g_strdup_printf ("AT_OWANCALL=%d,0,0", cid);
mm_base_modem_at_command_full (MM_BASE_MODEM (modem),
primary,
command,
3,
FALSE,
FALSE, /* raw */
NULL, /* cancellable */
(GAsyncReadyCallback)disconnect_owancall_ready,
task);
g_free (command);
}
/*****************************************************************************/
static void
report_connection_status (MMBaseBearer *_self,
MMBearerConnectionStatus status)
{
MMBroadbandBearerHso *self = MM_BROADBAND_BEARER_HSO (_self);
g_assert (status == MM_BEARER_CONNECTION_STATUS_CONNECTED ||
status == MM_BEARER_CONNECTION_STATUS_CONNECTION_FAILED ||
status == MM_BEARER_CONNECTION_STATUS_DISCONNECTED);
/* Process pending connection attempt */
if (self->priv->connect_pending) {
process_pending_connect_attempt (self, status);
return;
}
mm_dbg ("Received spontaneous _OWANCALL (%s)",
mm_bearer_connection_status_get_string (status));
if (status == MM_BEARER_CONNECTION_STATUS_DISCONNECTED) {
/* If no connection attempt on-going, make sure we mark ourselves as
* disconnected */
MM_BASE_BEARER_CLASS (mm_broadband_bearer_hso_parent_class)->report_connection_status (
_self,
status);
}
}
/*****************************************************************************/
MMBaseBearer *
mm_broadband_bearer_hso_new_finish (GAsyncResult *res,
GError **error)
{
GObject *bearer;
GObject *source;
source = g_async_result_get_source_object (res);
bearer = g_async_initable_new_finish (G_ASYNC_INITABLE (source), res, error);
g_object_unref (source);
if (!bearer)
return NULL;
/* Only export valid bearers */
mm_base_bearer_export (MM_BASE_BEARER (bearer));
return MM_BASE_BEARER (bearer);
}
void
mm_broadband_bearer_hso_new (MMBroadbandModemHso *modem,
MMBearerProperties *config,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
g_async_initable_new_async (
MM_TYPE_BROADBAND_BEARER_HSO,
G_PRIORITY_DEFAULT,
cancellable,
callback,
user_data,
MM_BASE_BEARER_MODEM, modem,
MM_BASE_BEARER_CONFIG, config,
NULL);
}
static void
mm_broadband_bearer_hso_init (MMBroadbandBearerHso *self)
{
/* Initialize private data */
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
MM_TYPE_BROADBAND_BEARER_HSO,
MMBroadbandBearerHsoPrivate);
}
static void
mm_broadband_bearer_hso_class_init (MMBroadbandBearerHsoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MMBaseBearerClass *base_bearer_class = MM_BASE_BEARER_CLASS (klass);
MMBroadbandBearerClass *broadband_bearer_class = MM_BROADBAND_BEARER_CLASS (klass);
g_type_class_add_private (object_class, sizeof (MMBroadbandBearerHsoPrivate));
base_bearer_class->report_connection_status = report_connection_status;
base_bearer_class->load_connection_status = NULL;
base_bearer_class->load_connection_status_finish = NULL;
broadband_bearer_class->dial_3gpp = dial_3gpp;
broadband_bearer_class->dial_3gpp_finish = dial_3gpp_finish;
broadband_bearer_class->get_ip_config_3gpp = get_ip_config_3gpp;
broadband_bearer_class->get_ip_config_3gpp_finish = get_ip_config_3gpp_finish;
broadband_bearer_class->disconnect_3gpp = disconnect_3gpp;
broadband_bearer_class->disconnect_3gpp_finish = disconnect_3gpp_finish;
}
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