| /* |
| * |
| * oFono - Open Source Telephony |
| * |
| * Copyright (C) 2008-2011 Intel Corporation. All rights reserved. |
| * |
| * 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 |
| |
| #include <errno.h> |
| #include <ctype.h> |
| #include <stdlib.h> |
| |
| #include <libudev.h> |
| |
| #include <glib.h> |
| #include <string.h> |
| |
| #define OFONO_API_SUBJECT_TO_CHANGE |
| #include <ofono/plugin.h> |
| #include <ofono/modem.h> |
| #include <ofono/log.h> |
| |
| static GSList *modem_list = NULL; |
| static GHashTable *devpath_list = NULL; |
| |
| static struct ofono_modem *find_modem(const char *devpath) |
| { |
| GSList *list; |
| |
| for (list = modem_list; list; list = list->next) { |
| struct ofono_modem *modem = list->data; |
| const char *path = ofono_modem_get_string(modem, "Path"); |
| |
| if (g_strcmp0(devpath, path) == 0) |
| return modem; |
| } |
| |
| return NULL; |
| } |
| |
| static const char *get_property(struct udev_device *device, |
| char const *property_name) |
| { |
| struct udev_list_entry *entry; |
| |
| entry = udev_device_get_properties_list_entry(device); |
| while (entry) { |
| const char *name = udev_list_entry_get_name(entry); |
| |
| if (g_strcmp0(name, property_name) == 0) |
| return udev_list_entry_get_value(entry); |
| |
| entry = udev_list_entry_get_next(entry); |
| } |
| |
| return NULL; |
| } |
| |
| static const char *get_driver(struct udev_device *udev_device) |
| { |
| return get_property(udev_device, "OFONO_DRIVER"); |
| } |
| |
| static const char *get_serial(struct udev_device *udev_device) |
| { |
| const char *serial; |
| |
| serial = get_property(udev_device, "ID_SERIAL_SHORT"); |
| |
| if (serial != NULL) { |
| unsigned int i, len = strlen(serial); |
| |
| for (i = 0; i < len; i++) { |
| if (!g_ascii_isalnum(serial[i])) |
| return NULL; |
| } |
| } |
| |
| return serial; |
| } |
| |
| static void add_ifx(struct ofono_modem *modem, |
| struct udev_device *udev_device) |
| { |
| struct udev_list_entry *entry; |
| const char *devnode; |
| |
| DBG("modem %p", modem); |
| |
| devnode = udev_device_get_devnode(udev_device); |
| ofono_modem_set_string(modem, "Device", devnode); |
| |
| entry = udev_device_get_properties_list_entry(udev_device); |
| while (entry) { |
| const char *name = udev_list_entry_get_name(entry); |
| const char *value = udev_list_entry_get_value(entry); |
| |
| if (g_str_equal(name, "OFONO_IFX_LDISC") == TRUE) |
| ofono_modem_set_string(modem, "LineDiscipline", value); |
| else if (g_str_equal(name, "OFONO_IFX_AUDIO") == TRUE) |
| ofono_modem_set_string(modem, "AudioSetting", value); |
| else if (g_str_equal(name, "OFONO_IFX_LOOPBACK") == TRUE) |
| ofono_modem_set_string(modem, "AudioLoopback", value); |
| |
| entry = udev_list_entry_get_next(entry); |
| } |
| |
| ofono_modem_register(modem); |
| } |
| |
| static void add_isi(struct ofono_modem *modem, |
| struct udev_device *udev_device) |
| { |
| const char *ifname, *type, *addr; |
| |
| DBG("modem %p", modem); |
| |
| if (ofono_modem_get_string(modem, "Interface")) |
| return; |
| |
| addr = get_property(udev_device, "OFONO_ISI_ADDRESS"); |
| if (addr != NULL) |
| ofono_modem_set_integer(modem, "Address", atoi(addr)); |
| |
| if (g_strcmp0(udev_device_get_subsystem(udev_device), "net") != 0) |
| return; |
| |
| type = udev_device_get_sysattr_value(udev_device, "type"); |
| if (g_strcmp0(type, "820") != 0) |
| return; |
| |
| ifname = udev_device_get_sysname(udev_device); |
| ofono_modem_set_string(modem, "Interface", ifname); |
| |
| DBG("interface %s", ifname); |
| |
| ofono_modem_register(modem); |
| } |
| |
| static void add_calypso(struct ofono_modem *modem, |
| struct udev_device *udev_device) |
| { |
| const char *devnode; |
| |
| DBG("modem %p", modem); |
| |
| devnode = udev_device_get_devnode(udev_device); |
| ofono_modem_set_string(modem, "Device", devnode); |
| |
| ofono_modem_register(modem); |
| } |
| |
| static void add_tc65(struct ofono_modem *modem, |
| struct udev_device *udev_device) |
| { |
| const char *devnode; |
| |
| DBG("modem %p", modem); |
| |
| devnode = udev_device_get_devnode(udev_device); |
| ofono_modem_set_string(modem, "Device", devnode); |
| |
| ofono_modem_register(modem); |
| } |
| |
| static void add_nokiacdma(struct ofono_modem *modem, |
| struct udev_device *udev_device) |
| { |
| const char *devnode; |
| |
| DBG("modem %p", modem); |
| |
| devnode = udev_device_get_devnode(udev_device); |
| ofono_modem_set_string(modem, "Device", devnode); |
| |
| ofono_modem_register(modem); |
| } |
| |
| static void add_sim900(struct ofono_modem *modem, |
| struct udev_device *udev_device) |
| { |
| const char *devnode; |
| |
| DBG("modem %p", modem); |
| |
| devnode = udev_device_get_devnode(udev_device); |
| ofono_modem_set_string(modem, "Device", devnode); |
| |
| ofono_modem_register(modem); |
| } |
| |
| static void add_modem(struct udev_device *udev_device) |
| { |
| struct ofono_modem *modem; |
| struct udev_device *parent; |
| const char *devpath, *curpath, *driver; |
| |
| driver = get_driver(udev_device); |
| if (driver != NULL) { |
| devpath = udev_device_get_devpath(udev_device); |
| if (devpath == NULL) |
| return; |
| |
| modem = ofono_modem_create(NULL, driver); |
| if (modem == NULL) |
| return; |
| |
| ofono_modem_set_string(modem, "Path", devpath); |
| |
| modem_list = g_slist_prepend(modem_list, modem); |
| |
| goto done; |
| } |
| |
| parent = udev_device_get_parent(udev_device); |
| if (parent == NULL) |
| return; |
| |
| driver = get_driver(parent); |
| if (driver == NULL) { |
| parent = udev_device_get_parent(parent); |
| driver = get_driver(parent); |
| if (driver == NULL) { |
| parent = udev_device_get_parent(parent); |
| driver = get_driver(parent); |
| if (driver == NULL) |
| return; |
| } |
| } |
| |
| devpath = udev_device_get_devpath(parent); |
| if (devpath == NULL) |
| return; |
| |
| modem = find_modem(devpath); |
| if (modem == NULL) { |
| const char *serial = get_serial(parent); |
| |
| modem = ofono_modem_create(serial, driver); |
| if (modem == NULL) |
| return; |
| |
| ofono_modem_set_string(modem, "Path", devpath); |
| ofono_modem_set_integer(modem, "Registered", 0); |
| |
| modem_list = g_slist_prepend(modem_list, modem); |
| } |
| |
| done: |
| curpath = udev_device_get_devpath(udev_device); |
| if (curpath == NULL) |
| return; |
| |
| DBG("%s (%s)", curpath, driver); |
| |
| g_hash_table_insert(devpath_list, g_strdup(curpath), g_strdup(devpath)); |
| |
| if (g_strcmp0(driver, "ifx") == 0) |
| add_ifx(modem, udev_device); |
| else if (g_strcmp0(driver, "u8500") == 0) |
| add_isi(modem, udev_device); |
| else if (g_strcmp0(driver, "n900") == 0) |
| add_isi(modem, udev_device); |
| else if (g_strcmp0(driver, "calypso") == 0) |
| add_calypso(modem, udev_device); |
| else if (g_strcmp0(driver, "tc65") == 0) |
| add_tc65(modem, udev_device); |
| else if (g_strcmp0(driver, "nokiacdma") == 0) |
| add_nokiacdma(modem, udev_device); |
| else if (g_strcmp0(driver, "sim900") == 0) |
| add_sim900(modem, udev_device); |
| } |
| |
| static gboolean devpath_remove(gpointer key, gpointer value, gpointer user_data) |
| { |
| const char *path = value; |
| const char *devpath = user_data; |
| |
| DBG("%s -> %s", path, devpath); |
| |
| return g_str_equal(path, devpath); |
| } |
| |
| static void remove_modem(struct udev_device *udev_device) |
| { |
| struct ofono_modem *modem; |
| const char *curpath = udev_device_get_devpath(udev_device); |
| char *devpath, *remove; |
| |
| if (curpath == NULL) |
| return; |
| |
| DBG("%s", curpath); |
| |
| devpath = g_hash_table_lookup(devpath_list, curpath); |
| if (devpath == NULL) |
| return; |
| |
| modem = find_modem(devpath); |
| if (modem == NULL) |
| return; |
| |
| modem_list = g_slist_remove(modem_list, modem); |
| |
| ofono_modem_remove(modem); |
| |
| DBG("%s", devpath); |
| |
| remove = g_strdup(devpath); |
| |
| g_hash_table_foreach_remove(devpath_list, devpath_remove, remove); |
| |
| g_free(remove); |
| } |
| |
| static void enumerate_devices(struct udev *context) |
| { |
| struct udev_enumerate *enumerate; |
| struct udev_list_entry *entry; |
| |
| enumerate = udev_enumerate_new(context); |
| if (enumerate == NULL) |
| return; |
| |
| udev_enumerate_add_match_subsystem(enumerate, "tty"); |
| udev_enumerate_add_match_subsystem(enumerate, "net"); |
| udev_enumerate_add_match_subsystem(enumerate, "hsi"); |
| |
| udev_enumerate_scan_devices(enumerate); |
| |
| entry = udev_enumerate_get_list_entry(enumerate); |
| while (entry) { |
| const char *syspath = udev_list_entry_get_name(entry); |
| struct udev_device *device; |
| |
| device = udev_device_new_from_syspath(context, syspath); |
| if (device != NULL) { |
| const char *subsystem; |
| |
| subsystem = udev_device_get_subsystem(device); |
| |
| if (g_strcmp0(subsystem, "tty") == 0 || |
| g_strcmp0(subsystem, "net") == 0 || |
| g_strcmp0(subsystem, "hsi") == 0) |
| add_modem(device); |
| |
| udev_device_unref(device); |
| } |
| |
| entry = udev_list_entry_get_next(entry); |
| } |
| |
| udev_enumerate_unref(enumerate); |
| } |
| |
| static struct udev *udev_ctx; |
| static struct udev_monitor *udev_mon; |
| static guint udev_watch = 0; |
| |
| static gboolean udev_event(GIOChannel *channel, GIOCondition cond, |
| gpointer user_data) |
| { |
| struct udev_device *device; |
| const char *subsystem, *action; |
| |
| if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL)) { |
| ofono_warn("Error with udev monitor channel"); |
| udev_watch = 0; |
| return FALSE; |
| } |
| |
| device = udev_monitor_receive_device(udev_mon); |
| if (device == NULL) |
| return TRUE; |
| |
| subsystem = udev_device_get_subsystem(device); |
| if (subsystem == NULL) |
| goto done; |
| |
| action = udev_device_get_action(device); |
| if (action == NULL) |
| goto done; |
| |
| DBG("subsystem %s %s", subsystem, action); |
| |
| if (g_str_equal(action, "add") == TRUE) { |
| if (g_strcmp0(subsystem, "tty") == 0 || |
| g_strcmp0(subsystem, "net") == 0 || |
| g_strcmp0(subsystem, "hsi") == 0) |
| add_modem(device); |
| } else if (g_str_equal(action, "remove") == TRUE) { |
| if (g_strcmp0(subsystem, "tty") == 0 || |
| g_strcmp0(subsystem, "net") == 0 || |
| g_strcmp0(subsystem, "hsi") == 0) |
| remove_modem(device); |
| } |
| |
| DBG("subsystem %s finished", subsystem); |
| |
| done: |
| udev_device_unref(device); |
| |
| return TRUE; |
| } |
| |
| static void udev_start(void) |
| { |
| GIOChannel *channel; |
| int fd; |
| |
| if (udev_monitor_enable_receiving(udev_mon) < 0) { |
| ofono_error("Failed to enable udev monitor"); |
| return; |
| } |
| |
| enumerate_devices(udev_ctx); |
| |
| fd = udev_monitor_get_fd(udev_mon); |
| |
| channel = g_io_channel_unix_new(fd); |
| if (channel == NULL) |
| return; |
| |
| udev_watch = g_io_add_watch(channel, |
| G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL, |
| udev_event, NULL); |
| |
| g_io_channel_unref(channel); |
| } |
| |
| static int udev_init(void) |
| { |
| devpath_list = g_hash_table_new_full(g_str_hash, g_str_equal, |
| g_free, g_free); |
| if (devpath_list == NULL) { |
| ofono_error("Failed to create udev path list"); |
| return -ENOMEM; |
| } |
| |
| udev_ctx = udev_new(); |
| if (udev_ctx == NULL) { |
| ofono_error("Failed to create udev context"); |
| g_hash_table_destroy(devpath_list); |
| return -EIO; |
| } |
| |
| udev_mon = udev_monitor_new_from_netlink(udev_ctx, "udev"); |
| if (udev_mon == NULL) { |
| ofono_error("Failed to create udev monitor"); |
| g_hash_table_destroy(devpath_list); |
| udev_unref(udev_ctx); |
| udev_ctx = NULL; |
| return -EIO; |
| } |
| |
| udev_monitor_filter_add_match_subsystem_devtype(udev_mon, "tty", NULL); |
| udev_monitor_filter_add_match_subsystem_devtype(udev_mon, "net", NULL); |
| udev_monitor_filter_add_match_subsystem_devtype(udev_mon, "hsi", NULL); |
| |
| udev_monitor_filter_update(udev_mon); |
| |
| udev_start(); |
| |
| return 0; |
| } |
| |
| static void udev_exit(void) |
| { |
| GSList *list; |
| |
| if (udev_watch > 0) |
| g_source_remove(udev_watch); |
| |
| for (list = modem_list; list; list = list->next) { |
| struct ofono_modem *modem = list->data; |
| |
| ofono_modem_remove(modem); |
| } |
| |
| g_slist_free(modem_list); |
| modem_list = NULL; |
| |
| g_hash_table_destroy(devpath_list); |
| devpath_list = NULL; |
| |
| if (udev_ctx == NULL) |
| return; |
| |
| udev_monitor_filter_remove(udev_mon); |
| |
| udev_monitor_unref(udev_mon); |
| udev_unref(udev_ctx); |
| } |
| |
| OFONO_PLUGIN_DEFINE(udev, "udev hardware detection", VERSION, |
| OFONO_PLUGIN_PRIORITY_DEFAULT, udev_init, udev_exit) |