colin/ModemManager
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ModemManager/plugins/mm-modem-hso.c

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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 Red Hat, Inc.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <dbus/dbus-glib.h>
#define G_UDEV_API_IS_SUBJECT_TO_CHANGE
#include <gudev/gudev.h>
#include "mm-modem-hso.h"
#include "mm-modem-simple.h"
#include "mm-serial-parsers.h"
#include "mm-errors.h"
#include "mm-callback-info.h"
static void impl_hso_authenticate (MMModemHso *self,
const char *username,
const char *password,
DBusGMethodInvocation *context);
#include "mm-modem-gsm-hso-glue.h"
static void modem_init (MMModem *modem_class);
static void modem_simple_init (MMModemSimple *simple_class);
G_DEFINE_TYPE_EXTENDED (MMModemHso, mm_modem_hso, MM_TYPE_GENERIC_GSM, 0,
G_IMPLEMENT_INTERFACE (MM_TYPE_MODEM, modem_init)
G_IMPLEMENT_INTERFACE (MM_TYPE_MODEM_SIMPLE, modem_simple_init))
#define MM_MODEM_HSO_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MM_TYPE_MODEM_HSO, MMModemHsoPrivate))
static void _internal_hso_modem_authenticate (MMModemHso *self, MMCallbackInfo *info);
const char *auth_commands[] = {
"$QCPDPP",
/* Icera-based devices (GI0322/Quicksilver, iCON 505) don't implement
* $QCPDPP, but instead use _OPDPP with the same arguments.
*/
"_OPDPP",
NULL
};
typedef struct {
/* Pending connection attempt */
MMCallbackInfo *connect_pending_data;
guint connect_pending_id;
guint32 auth_idx;
} MMModemHsoPrivate;
#define OWANDATA_TAG "_OWANDATA: "
MMModem *
mm_modem_hso_new (const char *device,
const char *driver,
const char *plugin)
{
g_return_val_if_fail (device != NULL, NULL);
g_return_val_if_fail (driver != NULL, NULL);
g_return_val_if_fail (plugin != NULL, NULL);
return MM_MODEM (g_object_new (MM_TYPE_MODEM_HSO,
MM_MODEM_MASTER_DEVICE, device,
MM_MODEM_DRIVER, driver,
MM_MODEM_PLUGIN, plugin,
MM_MODEM_IP_METHOD, MM_MODEM_IP_METHOD_STATIC,
NULL));
}
#define IGNORE_ERRORS_TAG "ignore-errors"
static void
hso_call_control_done (MMSerialPort *port,
GString *response,
GError *error,
gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
if (error && !mm_callback_info_get_data (info, IGNORE_ERRORS_TAG))
info->error = g_error_copy (error);
mm_callback_info_schedule (info);
}
static guint32
hso_get_cid (MMModemHso *self)
{
guint32 cid;
cid = mm_generic_gsm_get_cid (MM_GENERIC_GSM (self));
if (cid == 0)
cid = 1;
return cid;
}
static void
hso_call_control (MMModemHso *self,
gboolean activate,
gboolean ignore_errors,
MMModemFn callback,
gpointer user_data)
{
MMCallbackInfo *info;
char *command;
MMSerialPort *primary;
info = mm_callback_info_new (MM_MODEM (self), callback, user_data);
mm_callback_info_set_data (info, IGNORE_ERRORS_TAG, GUINT_TO_POINTER (ignore_errors), NULL);
command = g_strdup_printf ("AT_OWANCALL=%d,%d,1", hso_get_cid (self), activate ? 1 : 0);
primary = mm_generic_gsm_get_port (MM_GENERIC_GSM (self), MM_PORT_TYPE_PRIMARY);
g_assert (primary);
mm_serial_port_queue_command (primary, command, 3, hso_call_control_done, info);
g_free (command);
}
static void
connect_pending_done (MMModemHso *self)
{
MMModemHsoPrivate *priv = MM_MODEM_HSO_GET_PRIVATE (self);
if (priv->connect_pending_data) {
mm_callback_info_schedule (priv->connect_pending_data);
priv->connect_pending_data = NULL;
}
if (priv->connect_pending_id) {
g_source_remove (priv->connect_pending_id);
priv->connect_pending_id = 0;
}
}
static gboolean
hso_connect_timed_out (gpointer data)
{
MMModemHsoPrivate *priv = MM_MODEM_HSO_GET_PRIVATE (data);
priv->connect_pending_data->error = g_error_new_literal (MM_SERIAL_ERROR,
MM_SERIAL_RESPONSE_TIMEOUT,
"Connection timed out");
connect_pending_done (MM_MODEM_HSO (data));
return FALSE;
}
static void
hso_enabled (MMModem *modem,
GError *error,
gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
if (error) {
info->error = g_error_copy (error);
mm_callback_info_schedule (info);
} else {
MMModemHsoPrivate *priv = MM_MODEM_HSO_GET_PRIVATE (modem);
GSource *source;
source = g_timeout_source_new_seconds (30);
g_source_set_closure (source, g_cclosure_new_object (G_CALLBACK (hso_connect_timed_out), G_OBJECT (modem)));
g_source_attach (source, NULL);
priv->connect_pending_data = info;
priv->connect_pending_id = g_source_get_id (source);
g_source_unref (source);
}
}
static void
clear_old_context (MMModem *modem,
GError *error,
gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
if (error) {
info->error = g_error_copy (error);
mm_callback_info_schedule (info);
} else {
/* Success, activate the PDP context and start the data session */
hso_call_control (MM_MODEM_HSO (modem), TRUE, FALSE, hso_enabled, info);
}
}
static void
auth_done (MMSerialPort *port,
GString *response,
GError *error,
gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
MMModemHso *self = MM_MODEM_HSO (info->modem);
MMModemHsoPrivate *priv = MM_MODEM_HSO_GET_PRIVATE (self);
if (error) {
priv->auth_idx++;
if (auth_commands[priv->auth_idx]) {
/* Try the next auth command */
_internal_hso_modem_authenticate (self, info);
} else {
/* Reset to 0 so that something gets tried for the next connection */
priv->auth_idx = 0;
info->error = g_error_copy (error);
mm_callback_info_schedule (info);
}
} else {
priv->auth_idx = 0;
/* success, kill any existing connections first */
hso_call_control (self, FALSE, TRUE, clear_old_context, info);
}
}
static void
_internal_hso_modem_authenticate (MMModemHso *self, MMCallbackInfo *info)
{
MMModemHsoPrivate *priv = MM_MODEM_HSO_GET_PRIVATE (self);
MMSerialPort *primary;
guint32 cid;
char *command;
const char *username, *password;
primary = mm_generic_gsm_get_port (MM_GENERIC_GSM (self), MM_PORT_TYPE_PRIMARY);
g_assert (primary);
cid = hso_get_cid (self);
username = mm_callback_info_get_data (info, "username");
password = mm_callback_info_get_data (info, "password");
if (!username && !password)
command = g_strdup_printf ("%s=%d,0", auth_commands[priv->auth_idx], cid);
else {
command = g_strdup_printf ("%s=%d,1,\"%s\",\"%s\"",
auth_commands[priv->auth_idx],
cid,
password ? password : "",
username ? username : "");
}
mm_serial_port_queue_command (primary, command, 3, auth_done, info);
g_free (command);
}
void
mm_hso_modem_authenticate (MMModemHso *self,
const char *username,
const char *password,
MMModemFn callback,
gpointer user_data)
{
MMCallbackInfo *info;
g_return_if_fail (MM_IS_MODEM_HSO (self));
g_return_if_fail (callback != NULL);
info = mm_callback_info_new (MM_MODEM (self), callback, user_data);
if (username)
mm_callback_info_set_data (info, "username", g_strdup (username), g_free);
if (password)
mm_callback_info_set_data (info, "password", g_strdup (password), g_free);
_internal_hso_modem_authenticate (self, info);
}
/*****************************************************************************/
static void
generic_done (MMModem *modem, GError *error, gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
if (error)
info->error = g_error_copy (error);
mm_callback_info_schedule (info);
}
static void
parent_enable_done (MMModem *modem, GError *error, gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
if (error) {
info->error = g_error_copy (error);
mm_callback_info_schedule (info);
} else {
/* HSO needs manual PIN checking */
mm_generic_gsm_check_pin (MM_GENERIC_GSM (modem), generic_done, info);
}
}
static void
enable (MMModem *modem,
MMModemFn callback,
gpointer user_data)
{
MMModem *parent_modem_iface;
MMCallbackInfo *info;
info = mm_callback_info_new (modem, callback, user_data);
parent_modem_iface = g_type_interface_peek_parent (MM_MODEM_GET_INTERFACE (info->modem));
parent_modem_iface->enable (info->modem, parent_enable_done, info);
}
static void
disable_done (MMModem *modem,
GError *error,
gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
MMModem *parent_modem_iface;
/* Do the normal disable stuff */
parent_modem_iface = g_type_interface_peek_parent (MM_MODEM_GET_INTERFACE (info->modem));
parent_modem_iface->disable (info->modem, generic_done, info);
}
static void
disable (MMModem *modem,
MMModemFn callback,
gpointer user_data)
{
MMCallbackInfo *info;
mm_generic_gsm_pending_registration_stop (MM_GENERIC_GSM (modem));
info = mm_callback_info_new (modem, callback, user_data);
/* Kill any existing connection */
hso_call_control (MM_MODEM_HSO (modem), FALSE, TRUE, disable_done, info);
}
static void
do_connect (MMModem *modem,
const char *number,
MMModemFn callback,
gpointer user_data)
{
MMCallbackInfo *info;
info = mm_callback_info_new (modem, callback, user_data);
mm_callback_info_schedule (info);
}
static void
free_dns_array (gpointer data)
{
g_array_free ((GArray *) data, TRUE);
}
static void
ip4_config_invoke (MMCallbackInfo *info)
{
MMModemIp4Fn callback = (MMModemIp4Fn) info->callback;
callback (info->modem,
GPOINTER_TO_UINT (mm_callback_info_get_data (info, "ip4-address")),
(GArray *) mm_callback_info_get_data (info, "ip4-dns"),
info->error, info->user_data);
}
static void
get_ip4_config_done (MMSerialPort *port,
GString *response,
GError *error,
gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
char **items, **iter;
GArray *dns_array;
int i;
guint32 tmp;
guint cid;
if (error) {
info->error = g_error_copy (error);
goto out;
} else if (!g_str_has_prefix (response->str, OWANDATA_TAG)) {
info->error = g_error_new_literal (MM_MODEM_ERROR, MM_MODEM_ERROR_GENERAL,
"Retrieving failed: invalid response.");
goto out;
}
cid = hso_get_cid (MM_MODEM_HSO (info->modem));
dns_array = g_array_sized_new (FALSE, TRUE, sizeof (guint32), 2);
items = g_strsplit (response->str + strlen (OWANDATA_TAG), ", ", 0);
for (iter = items, i = 0; *iter; iter++, i++) {
if (i == 0) { /* CID */
long int num;
errno = 0;
num = strtol (*iter, NULL, 10);
if (errno != 0 || num < 0 || (guint) num != cid) {
info->error = g_error_new (MM_MODEM_ERROR, MM_MODEM_ERROR_GENERAL,
"Unknown CID in OWANDATA response ("
"got %d, expected %d)", (guint) num, cid);
break;
}
} else if (i == 1) { /* IP address */
if (inet_pton (AF_INET, *iter, &tmp) > 0)
mm_callback_info_set_data (info, "ip4-address", GUINT_TO_POINTER (tmp), NULL);
} else if (i == 3) { /* DNS 1 */
if (inet_pton (AF_INET, *iter, &tmp) > 0)
g_array_append_val (dns_array, tmp);
} else if (i == 4) { /* DNS 2 */
if (inet_pton (AF_INET, *iter, &tmp) > 0)
g_array_append_val (dns_array, tmp);
}
}
g_strfreev (items);
mm_callback_info_set_data (info, "ip4-dns", dns_array, free_dns_array);
out:
mm_callback_info_schedule (info);
}
static void
get_ip4_config (MMModem *modem,
MMModemIp4Fn callback,
gpointer user_data)
{
MMCallbackInfo *info;
char *command;
MMSerialPort *primary;
info = mm_callback_info_new_full (modem, ip4_config_invoke, G_CALLBACK (callback), user_data);
command = g_strdup_printf ("AT_OWANDATA=%d", hso_get_cid (MM_MODEM_HSO (modem)));
primary = mm_generic_gsm_get_port (MM_GENERIC_GSM (modem), MM_PORT_TYPE_PRIMARY);
g_assert (primary);
mm_serial_port_queue_command (primary, command, 3, get_ip4_config_done, info);
g_free (command);
}
static void
disconnect (MMModem *modem,
MMModemFn callback,
gpointer user_data)
{
MMCallbackInfo *info;
MMSerialPort *primary;
info = mm_callback_info_new (modem, callback, user_data);
primary = mm_generic_gsm_get_port (MM_GENERIC_GSM (modem), MM_PORT_TYPE_PRIMARY);
g_assert (primary);
mm_serial_port_queue_command (primary, "AT_OWANCALL=1,0,0", 3, NULL, info);
}
/*****************************************************************************/
static void
impl_hso_auth_done (MMModem *modem,
GError *error,
gpointer user_data)
{
DBusGMethodInvocation *context = (DBusGMethodInvocation *) user_data;
if (error)
dbus_g_method_return_error (context, error);
else
dbus_g_method_return (context);
}
static void
impl_hso_authenticate (MMModemHso *self,
const char *username,
const char *password,
DBusGMethodInvocation *context)
{
/* DBus doesn't support NULLs */
if (username && strlen (username) == 0)
username = NULL;
if (password && strlen (password) == 0)
password = NULL;
mm_hso_modem_authenticate (self, username, password, impl_hso_auth_done, context);
}
static void
connection_enabled (MMSerialPort *port,
GMatchInfo *info,
gpointer user_data)
{
MMModemHso *self = MM_MODEM_HSO (user_data);
MMModemHsoPrivate *priv = MM_MODEM_HSO_GET_PRIVATE (self);
char *str;
str = g_match_info_fetch (info, 2);
if (str[0] == '1')
connect_pending_done (self);
else if (str[0] == '3') {
MMCallbackInfo *cb_info = priv->connect_pending_data;
if (cb_info)
cb_info->error = g_error_new_literal (MM_MODEM_ERROR, MM_MODEM_ERROR_GENERAL,
"Call setup failed");
connect_pending_done (self);
} else if (str[0] == '0')
/* FIXME: disconnected. do something when we have modem status signals */
;
g_free (str);
}
/*****************************************************************************/
/* MMModemSimple interface */
typedef enum {
SIMPLE_STATE_BEGIN = 0,
SIMPLE_STATE_PARENT_CONNECT,
SIMPLE_STATE_AUTHENTICATE,
SIMPLE_STATE_DONE
} SimpleState;
static const char *
simple_get_string_property (MMCallbackInfo *info, const char *name, GError **error)
{
GHashTable *properties = (GHashTable *) mm_callback_info_get_data (info, "simple-connect-properties");
GValue *value;
value = (GValue *) g_hash_table_lookup (properties, name);
if (!value)
return NULL;
if (G_VALUE_HOLDS_STRING (value))
return g_value_get_string (value);
g_set_error (error, MM_MODEM_ERROR, MM_MODEM_ERROR_GENERAL,
"Invalid property type for '%s': %s (string expected)",
name, G_VALUE_TYPE_NAME (value));
return NULL;
}
static void
simple_state_machine (MMModem *modem, GError *error, gpointer user_data)
{
MMCallbackInfo *info = (MMCallbackInfo *) user_data;
MMModemSimple *parent_iface;
const char *username;
const char *password;
GHashTable *properties = (GHashTable *) mm_callback_info_get_data (info, "simple-connect-properties");
SimpleState state = GPOINTER_TO_UINT (mm_callback_info_get_data (info, "simple-connect-state"));
if (error) {
info->error = g_error_copy (error);
goto out;
}
switch (state) {
case SIMPLE_STATE_BEGIN:
state = SIMPLE_STATE_PARENT_CONNECT;
parent_iface = g_type_interface_peek_parent (MM_MODEM_SIMPLE_GET_INTERFACE (modem));
parent_iface->connect (MM_MODEM_SIMPLE (modem), properties, simple_state_machine, info);
break;
case SIMPLE_STATE_PARENT_CONNECT:
state = SIMPLE_STATE_AUTHENTICATE;
username = simple_get_string_property (info, "username", &info->error);
password = simple_get_string_property (info, "password", &info->error);
mm_hso_modem_authenticate (MM_MODEM_HSO (modem), username, password, simple_state_machine, info);
break;
case SIMPLE_STATE_AUTHENTICATE:
state = SIMPLE_STATE_DONE;
break;
default:
break;
}
out:
if (info->error || state == SIMPLE_STATE_DONE)
mm_callback_info_schedule (info);
else
mm_callback_info_set_data (info, "simple-connect-state", GUINT_TO_POINTER (state), NULL);
}
static void
simple_connect (MMModemSimple *simple,
GHashTable *properties,
MMModemFn callback,
gpointer user_data)
{
MMCallbackInfo *info;
info = mm_callback_info_new (MM_MODEM (simple), callback, user_data);
mm_callback_info_set_data (info, "simple-connect-properties",
g_hash_table_ref (properties),
(GDestroyNotify) g_hash_table_unref);
simple_state_machine (MM_MODEM (simple), NULL, info);
}
/*****************************************************************************/
static gboolean
grab_port (MMModem *modem,
const char *subsys,
const char *name,
MMPortType suggested_type,
gpointer user_data,
GError **error)
{
MMGenericGsm *gsm = MM_GENERIC_GSM (modem);
MMPortType ptype = MM_PORT_TYPE_IGNORED;
const char *sys[] = { "tty", "net", NULL };
GUdevClient *client;
GUdevDevice *device = NULL;
MMPort *port = NULL;
const char *sysfs_path;
client = g_udev_client_new (sys);
if (!client) {
g_set_error (error, 0, 0, "Could not get udev client.");
return FALSE;
}
device = g_udev_client_query_by_subsystem_and_name (client, subsys, name);
if (!device) {
g_set_error (error, 0, 0, "Could not get udev device.");
goto out;
}
sysfs_path = g_udev_device_get_sysfs_path (device);
if (!sysfs_path) {
g_set_error (error, 0, 0, "Could not get udev device sysfs path.");
goto out;
}
if (!strcmp (subsys, "tty")) {
char *hsotype_path;
char *contents = NULL;
hsotype_path = g_build_filename (sysfs_path, "hsotype", NULL);
if (g_file_get_contents (hsotype_path, &contents, NULL, NULL)) {
if (g_str_has_prefix (contents, "Control"))
ptype = MM_PORT_TYPE_PRIMARY;
else if (g_str_has_prefix (contents, "Application") || g_str_has_prefix (contents, "Application2"))
ptype = MM_PORT_TYPE_SECONDARY;
g_free (contents);
}
g_free (hsotype_path);
}
port = mm_generic_gsm_grab_port (gsm, subsys, name, ptype, error);
if (!port)
goto out;
if (MM_IS_SERIAL_PORT (port)) {
g_object_set (G_OBJECT (port), MM_SERIAL_PORT_SEND_DELAY, (guint64) 10000, NULL);
if (ptype == MM_PORT_TYPE_PRIMARY) {
GRegex *regex;
mm_generic_gsm_set_unsolicited_registration (gsm, TRUE);
regex = g_regex_new ("_OWANCALL: (\\d),\\s*(\\d)\\r\\n", G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
mm_serial_port_add_unsolicited_msg_handler (MM_SERIAL_PORT (port), regex, connection_enabled, modem, NULL);
g_regex_unref (regex);
}
}
out:
if (device)
g_object_unref (device);
g_object_unref (client);
return !!port;
}
/*****************************************************************************/
static void
mm_modem_hso_init (MMModemHso *self)
{
}
static void
modem_simple_init (MMModemSimple *class)
{
class->connect = simple_connect;
}
static void
modem_init (MMModem *modem_class)
{
modem_class->enable = enable;
modem_class->disable = disable;
modem_class->connect = do_connect;
modem_class->get_ip4_config = get_ip4_config;
modem_class->disconnect = disconnect;
modem_class->grab_port = grab_port;
}
static void
finalize (GObject *object)
{
/* Clear the pending connection if necessary */
connect_pending_done (MM_MODEM_HSO (object));
G_OBJECT_CLASS (mm_modem_hso_parent_class)->finalize (object);
}
static void
mm_modem_hso_class_init (MMModemHsoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
mm_modem_hso_parent_class = g_type_class_peek_parent (klass);
g_type_class_add_private (object_class, sizeof (MMModemHsoPrivate));
/* Virtual methods */
object_class->finalize = finalize;
}
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