diff options
Diffstat (limited to 'src/nm-udev-manager.c')
| -rw-r--r-- | src/nm-udev-manager.c | 674 |
1 files changed, 0 insertions, 674 deletions
diff --git a/src/nm-udev-manager.c b/src/nm-udev-manager.c deleted file mode 100644 index 7e867406..00000000 --- a/src/nm-udev-manager.c +++ /dev/null @@ -1,674 +0,0 @@ -/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ -/* NetworkManager -- Network link manager - * - * 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. - * - * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Copyright (C) 2009 - 2012 Red Hat, Inc. - */ - -#include <config.h> -#include <net/if_arp.h> - -#include <gmodule.h> -#include <gudev/gudev.h> - -#include "nm-udev-manager.h" -#include "nm-marshal.h" -#include "nm-logging.h" -#include "nm-system.h" - -typedef struct { - GUdevClient *client; - - /* Authoritative rfkill state (RFKILL_* enum) */ - RfKillState rfkill_states[RFKILL_TYPE_MAX]; - GSList *killswitches; - - gboolean disposed; -} NMUdevManagerPrivate; - -#define NM_UDEV_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_UDEV_MANAGER, NMUdevManagerPrivate)) - -G_DEFINE_TYPE (NMUdevManager, nm_udev_manager, G_TYPE_OBJECT) - -enum { - DEVICE_ADDED, - DEVICE_REMOVED, - RFKILL_CHANGED, - - LAST_SIGNAL -}; - -static guint signals[LAST_SIGNAL] = { 0 }; - - -typedef struct { - char *name; - guint64 seqnum; - char *path; - char *driver; - RfKillType rtype; - gint state; - gboolean platform; -} Killswitch; - -RfKillState -nm_udev_manager_get_rfkill_state (NMUdevManager *self, RfKillType rtype) -{ - g_return_val_if_fail (self != NULL, RFKILL_UNBLOCKED); - g_return_val_if_fail (rtype < RFKILL_TYPE_MAX, RFKILL_UNBLOCKED); - - return NM_UDEV_MANAGER_GET_PRIVATE (self)->rfkill_states[rtype]; -} - -static const char * -rfkill_type_to_desc (RfKillType rtype) -{ - if (rtype == 0) - return "WiFi"; - else if (rtype == 1) - return "WWAN"; - else if (rtype == 2) - return "WiMAX"; - return "unknown"; -} - -static const char * -rfkill_state_to_desc (RfKillState rstate) -{ - if (rstate == 0) - return "unblocked"; - else if (rstate == 1) - return "soft-blocked"; - else if (rstate == 2) - return "hard-blocked"; - return "unknown"; -} - -static Killswitch * -killswitch_new (GUdevDevice *device, RfKillType rtype) -{ - Killswitch *ks; - GUdevDevice *parent = NULL, *grandparent = NULL; - const char *driver, *subsys, *parent_subsys = NULL; - - ks = g_malloc0 (sizeof (Killswitch)); - ks->name = g_strdup (g_udev_device_get_name (device)); - ks->seqnum = g_udev_device_get_seqnum (device); - ks->path = g_strdup (g_udev_device_get_sysfs_path (device)); - ks->rtype = rtype; - - driver = g_udev_device_get_property (device, "DRIVER"); - subsys = g_udev_device_get_subsystem (device); - - /* Check parent for various attributes */ - parent = g_udev_device_get_parent (device); - if (parent) { - parent_subsys = g_udev_device_get_subsystem (parent); - if (!driver) - driver = g_udev_device_get_property (parent, "DRIVER"); - if (!driver) { - /* Sigh; try the grandparent */ - grandparent = g_udev_device_get_parent (parent); - if (grandparent) - driver = g_udev_device_get_property (grandparent, "DRIVER"); - } - } - - if (!driver) - driver = "(unknown)"; - ks->driver = g_strdup (driver); - - if ( g_strcmp0 (subsys, "platform") == 0 - || g_strcmp0 (parent_subsys, "platform") == 0 - || g_strcmp0 (subsys, "acpi") == 0 - || g_strcmp0 (parent_subsys, "acpi") == 0) - ks->platform = TRUE; - - if (grandparent) - g_object_unref (grandparent); - if (parent) - g_object_unref (parent); - return ks; -} - -static void -killswitch_destroy (Killswitch *ks) -{ - g_return_if_fail (ks != NULL); - - g_free (ks->name); - g_free (ks->path); - g_free (ks->driver); - memset (ks, 0, sizeof (Killswitch)); - g_free (ks); -} - -NMUdevManager * -nm_udev_manager_new (void) -{ - return NM_UDEV_MANAGER (g_object_new (NM_TYPE_UDEV_MANAGER, NULL)); -} - -static RfKillState -sysfs_state_to_nm_state (gint sysfs_state) -{ - switch (sysfs_state) { - case 0: - return RFKILL_SOFT_BLOCKED; - case 1: - return RFKILL_UNBLOCKED; - case 2: - return RFKILL_HARD_BLOCKED; - default: - nm_log_warn (LOGD_RFKILL, "unhandled rfkill state %d", sysfs_state); - break; - } - return RFKILL_UNBLOCKED; -} - -static void -recheck_killswitches (NMUdevManager *self) -{ - NMUdevManagerPrivate *priv = NM_UDEV_MANAGER_GET_PRIVATE (self); - GSList *iter; - RfKillState poll_states[RFKILL_TYPE_MAX]; - RfKillState platform_states[RFKILL_TYPE_MAX]; - gboolean platform_checked[RFKILL_TYPE_MAX]; - int i; - - /* Default state is unblocked */ - for (i = 0; i < RFKILL_TYPE_MAX; i++) { - poll_states[i] = RFKILL_UNBLOCKED; - platform_states[i] = RFKILL_UNBLOCKED; - platform_checked[i] = FALSE; - } - - /* Poll the states of all killswitches */ - for (iter = priv->killswitches; iter; iter = g_slist_next (iter)) { - Killswitch *ks = iter->data; - GUdevDevice *device; - RfKillState dev_state; - int sysfs_state; - - device = g_udev_client_query_by_subsystem_and_name (priv->client, "rfkill", ks->name); - if (device) { - sysfs_state = g_udev_device_get_property_as_int (device, "RFKILL_STATE"); - dev_state = sysfs_state_to_nm_state (sysfs_state); - - nm_log_dbg (LOGD_RFKILL, "%s rfkill%s switch %s state now %d/%u", - rfkill_type_to_desc (ks->rtype), - ks->platform ? " platform" : "", - ks->name, - sysfs_state, - dev_state); - - if (ks->platform == FALSE) { - if (dev_state > poll_states[ks->rtype]) - poll_states[ks->rtype] = dev_state; - } else { - platform_checked[ks->rtype] = TRUE; - if (dev_state > platform_states[ks->rtype]) - platform_states[ks->rtype] = dev_state; - } - g_object_unref (device); - } - } - - /* Log and emit change signal for final rfkill states */ - for (i = 0; i < RFKILL_TYPE_MAX; i++) { - if (platform_checked[i] == TRUE) { - /* blocked platform switch state overrides device state, otherwise - * let the device state stand. (bgo #655773) - */ - if (platform_states[i] != RFKILL_UNBLOCKED) - poll_states[i] = platform_states[i]; - } - - if (poll_states[i] != priv->rfkill_states[i]) { - nm_log_dbg (LOGD_RFKILL, "%s rfkill state now '%s'", - rfkill_type_to_desc (i), - rfkill_state_to_desc (poll_states[i])); - - priv->rfkill_states[i] = poll_states[i]; - g_signal_emit (self, signals[RFKILL_CHANGED], 0, i, priv->rfkill_states[i]); - } - } -} - -static Killswitch * -killswitch_find_by_name (NMUdevManager *self, const char *name) -{ - NMUdevManagerPrivate *priv = NM_UDEV_MANAGER_GET_PRIVATE (self); - GSList *iter; - - g_return_val_if_fail (name != NULL, NULL); - - for (iter = priv->killswitches; iter; iter = g_slist_next (iter)) { - Killswitch *candidate = iter->data; - - if (!strcmp (name, candidate->name)) - return candidate; - } - return NULL; -} - -static const RfKillType -rfkill_type_to_enum (const char *str) -{ - g_return_val_if_fail (str != NULL, RFKILL_TYPE_UNKNOWN); - - if (!strcmp (str, "wlan")) - return RFKILL_TYPE_WLAN; - else if (!strcmp (str, "wwan")) - return RFKILL_TYPE_WWAN; - else if (!strcmp (str, "wimax")) - return RFKILL_TYPE_WIMAX; - - return RFKILL_TYPE_UNKNOWN; -} - -static void -add_one_killswitch (NMUdevManager *self, GUdevDevice *device) -{ - NMUdevManagerPrivate *priv = NM_UDEV_MANAGER_GET_PRIVATE (self); - const char *str_type; - RfKillType rtype; - Killswitch *ks; - - str_type = g_udev_device_get_property (device, "RFKILL_TYPE"); - rtype = rfkill_type_to_enum (str_type); - if (rtype == RFKILL_TYPE_UNKNOWN) - return; - - ks = killswitch_new (device, rtype); - priv->killswitches = g_slist_prepend (priv->killswitches, ks); - - nm_log_info (LOGD_RFKILL, "%s: found %s radio killswitch (at %s) (%sdriver %s)", - ks->name, - rfkill_type_to_desc (rtype), - ks->path, - ks->platform ? "platform " : "", - ks->driver ? ks->driver : "<unknown>"); -} - -static void -rfkill_add (NMUdevManager *self, GUdevDevice *device) -{ - const char *name; - - g_return_if_fail (device != NULL); - name = g_udev_device_get_name (device); - g_return_if_fail (name != NULL); - - if (!killswitch_find_by_name (self, name)) - add_one_killswitch (self, device); -} - -static void -rfkill_remove (NMUdevManager *self, - GUdevDevice *device) -{ - NMUdevManagerPrivate *priv = NM_UDEV_MANAGER_GET_PRIVATE (self); - GSList *iter; - const char *name; - - g_return_if_fail (device != NULL); - name = g_udev_device_get_name (device); - g_return_if_fail (name != NULL); - - for (iter = priv->killswitches; iter; iter = g_slist_next (iter)) { - Killswitch *ks = iter->data; - - if (!strcmp (ks->name, name)) { - nm_log_info (LOGD_RFKILL, "radio killswitch %s disappeared", ks->path); - priv->killswitches = g_slist_remove (priv->killswitches, ks); - killswitch_destroy (ks); - break; - } - } -} - -static gboolean -dev_get_attrs (GUdevDevice *udev_device, - const char **out_ifname, - const char **out_path, - char **out_driver, - int *out_ifindex) -{ - GUdevDevice *parent = NULL, *grandparent = NULL; - const char *ifname, *driver, *path, *subsys; - gint ifindex = -1; - gboolean success = FALSE; - - g_return_val_if_fail (udev_device != NULL, FALSE); - g_return_val_if_fail (out_ifname != NULL, FALSE); - g_return_val_if_fail (out_path != NULL, FALSE); - g_return_val_if_fail (out_driver != NULL, FALSE); - g_return_val_if_fail (out_ifindex != NULL, FALSE); - - ifname = g_udev_device_get_name (udev_device); - if (!ifname) { - nm_log_dbg (LOGD_HW, "failed to get device's interface"); - return FALSE; - } - - path = g_udev_device_get_sysfs_path (udev_device); - if (!path) { - nm_log_warn (LOGD_HW, "couldn't determine device path; ignoring..."); - return FALSE; - } - - driver = g_udev_device_get_driver (udev_device); - if (!driver) { - /* Try the parent */ - parent = g_udev_device_get_parent (udev_device); - if (parent) { - driver = g_udev_device_get_driver (parent); - if (!driver) { - /* try the grandparent if it's an ibmebus device or if the - * subsys is NULL which usually indicates some sort of - * platform device like a 'gadget' net interface. - */ - subsys = g_udev_device_get_subsystem (parent); - if ( (g_strcmp0 (subsys, "ibmebus") == 0) - || (subsys == NULL)) { - grandparent = g_udev_device_get_parent (parent); - if (grandparent) - driver = g_udev_device_get_driver (grandparent); - } - } - } - } - - if (g_udev_device_get_sysfs_attr (udev_device, "ifindex")) - ifindex = g_udev_device_get_sysfs_attr_as_int (udev_device, "ifindex"); - - if (!driver) { - switch (nm_system_get_iface_type (ifindex, ifname)) { - case NM_IFACE_TYPE_BOND: - driver = "bonding"; - break; - case NM_IFACE_TYPE_BRIDGE: - driver = "bridge"; - break; - case NM_IFACE_TYPE_VLAN: - driver = "8021q"; - break; - default: - if (g_str_has_prefix (ifname, "easytether")) - driver = "easytether"; - break; - } - - if (!driver) { - nm_log_warn (LOGD_HW, "%s: couldn't determine device driver; ignoring...", path); - goto out; - } - } - - *out_ifname = ifname; - *out_path = path; - *out_driver = g_strdup (driver); - *out_ifindex = ifindex; - success = TRUE; - -out: - if (grandparent) - g_object_unref (grandparent); - if (parent) - g_object_unref (parent); - - return success; -} - -static void -net_add (NMUdevManager *self, GUdevDevice *udev_device) -{ - gint ifindex = -1; - gint etype; - const char *ifname = NULL, *path = NULL, *tmp; - char *driver = NULL; - gboolean is_ctc; - - g_return_if_fail (udev_device != NULL); - - if (!dev_get_attrs (udev_device, &ifname, &path, &driver, &ifindex)) - return; - - if (ifindex < 0) { - nm_log_warn (LOGD_HW, "%s: device had invalid ifindex %d; ignoring...", path, ifindex); - goto out; - } - - etype = g_udev_device_get_sysfs_attr_as_int (udev_device, "type"); - is_ctc = (strncmp (ifname, "ctc", 3) == 0) && (etype == 256); - - /* Ignore devices that don't report Ethernet encapsulation, except for - * s390 CTC-type devices that report 256 for some reason. - * FIXME: use something other than interface name to detect CTC here. - */ - if ((etype != ARPHRD_ETHER) && (etype != ARPHRD_INFINIBAND) && (is_ctc == FALSE)) { - nm_log_dbg (LOGD_HW, "(%s): ignoring interface with type %d", ifname, etype); - goto out; - } - - /* Not all ethernet devices are immediately usable; newer mobile broadband - * devices (Ericsson, Option, Sierra) require setup on the tty before the - * ethernet device is usable. 2.6.33 and later kernels set the 'DEVTYPE' - * uevent variable which we can use to ignore the interface as a NMDevice - * subclass. ModemManager will pick it up though and so we'll handle it - * through the mobile broadband stuff. - */ - tmp = g_udev_device_get_property (udev_device, "DEVTYPE"); - if (g_strcmp0 (tmp, "wwan") == 0) { - nm_log_dbg (LOGD_HW, "(%s): ignoring interface with devtype '%s'", ifname, tmp); - goto out; - } - - g_signal_emit (self, signals[DEVICE_ADDED], 0, udev_device, ifname, path, driver, ifindex); - -out: - g_free (driver); -} - -static void -net_remove (NMUdevManager *self, GUdevDevice *device) -{ - g_signal_emit (self, signals[DEVICE_REMOVED], 0, device); -} - -static void -adsl_add (NMUdevManager *self, GUdevDevice *udev_device) -{ - gint ifindex = -1; - const char *ifname = NULL, *path = NULL; - char *driver = NULL; - - g_return_if_fail (udev_device != NULL); - - nm_log_dbg (LOGD_HW, "adsl_add: ATM Device detected from udev. Adding .."); - - if (dev_get_attrs (udev_device, &ifname, &path, &driver, &ifindex)) - g_signal_emit (self, signals[DEVICE_ADDED], 0, udev_device, ifname, path, driver, ifindex); - g_free (driver); -} - -static void -adsl_remove (NMUdevManager *self, GUdevDevice *device) -{ - nm_log_dbg (LOGD_HW, "adsl_remove: Removing ATM Device"); - - g_signal_emit (self, signals[DEVICE_REMOVED], 0, device); -} - -void -nm_udev_manager_query_devices (NMUdevManager *self) -{ - NMUdevManagerPrivate *priv = NM_UDEV_MANAGER_GET_PRIVATE (self); - GUdevEnumerator *enumerator; - GList *devices, *iter; - - g_return_if_fail (self != NULL); - g_return_if_fail (NM_IS_UDEV_MANAGER (self)); - - enumerator = g_udev_enumerator_new (priv->client); - g_udev_enumerator_add_match_subsystem (enumerator, "net"); - g_udev_enumerator_add_match_is_initialized (enumerator); - - devices = g_udev_enumerator_execute (enumerator); - for (iter = devices; iter; iter = g_list_next (iter)) { - net_add (self, G_UDEV_DEVICE (iter->data)); - g_object_unref (G_UDEV_DEVICE (iter->data)); - } - g_list_free (devices); - g_object_unref (enumerator); - - - enumerator = g_udev_enumerator_new (priv->client); - g_udev_enumerator_add_match_subsystem (enumerator, "atm"); - g_udev_enumerator_add_match_is_initialized (enumerator); - devices = g_udev_enumerator_execute (enumerator); - for (iter = devices; iter; iter = g_list_next (iter)) { - adsl_add (self, G_UDEV_DEVICE (iter->data)); - g_object_unref (G_UDEV_DEVICE (iter->data)); - } - g_list_free (devices); - g_object_unref (enumerator); -} - -static void -handle_uevent (GUdevClient *client, - const char *action, - GUdevDevice *device, - gpointer user_data) -{ - NMUdevManager *self = NM_UDEV_MANAGER (user_data); - const char *subsys; - - g_return_if_fail (action != NULL); - - /* A bit paranoid */ - subsys = g_udev_device_get_subsystem (device); - g_return_if_fail (subsys != NULL); - - nm_log_dbg (LOGD_HW, "UDEV event: action '%s' subsys '%s' device '%s'", - action, subsys, g_udev_device_get_name (device)); - - g_return_if_fail (!strcmp (subsys, "rfkill") || !strcmp (subsys, "net") || - !strcmp (subsys, "atm")); - - if (!strcmp (action, "add")) { - if (!strcmp (subsys, "rfkill")) - rfkill_add (self, device); - else if (!strcmp (subsys, "net")) - net_add (self, device); - else if (!strcmp (subsys, "atm")) - adsl_add (self, device); - } else if (!strcmp (action, "remove")) { - if (!strcmp (subsys, "rfkill")) - rfkill_remove (self, device); - else if (!strcmp (subsys, "net")) - net_remove (self, device); - else if (!strcmp (subsys, "atm")) - adsl_remove (self, device); - } - - recheck_killswitches (self); -} - -static void -nm_udev_manager_init (NMUdevManager *self) -{ - NMUdevManagerPrivate *priv = NM_UDEV_MANAGER_GET_PRIVATE (self); - const char *subsys[4] = { "rfkill", "net", "atm", NULL }; - GList *switches, *iter; - guint32 i; - - for (i = 0; i < RFKILL_TYPE_MAX; i++) - priv->rfkill_states[i] = RFKILL_UNBLOCKED; - - priv->client = g_udev_client_new (subsys); - g_signal_connect (priv->client, "uevent", G_CALLBACK (handle_uevent), self); - - switches = g_udev_client_query_by_subsystem (priv->client, "rfkill"); - for (iter = switches; iter; iter = g_list_next (iter)) { - add_one_killswitch (self, G_UDEV_DEVICE (iter->data)); - g_object_unref (G_UDEV_DEVICE (iter->data)); - } - g_list_free (switches); - - recheck_killswitches (self); -} - -static void -dispose (GObject *object) -{ - NMUdevManager *self = NM_UDEV_MANAGER (object); - NMUdevManagerPrivate *priv = NM_UDEV_MANAGER_GET_PRIVATE (self); - - if (priv->disposed) { - G_OBJECT_CLASS (nm_udev_manager_parent_class)->dispose (object); - return; - } - priv->disposed = TRUE; - - g_object_unref (priv->client); - - g_slist_foreach (priv->killswitches, (GFunc) killswitch_destroy, NULL); - g_slist_free (priv->killswitches); - - G_OBJECT_CLASS (nm_udev_manager_parent_class)->dispose (object); -} - -static void -nm_udev_manager_class_init (NMUdevManagerClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - - g_type_class_add_private (klass, sizeof (NMUdevManagerPrivate)); - - /* virtual methods */ - object_class->dispose = dispose; - - /* Signals */ - signals[DEVICE_ADDED] = - g_signal_new ("device-added", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (NMUdevManagerClass, device_added), - NULL, NULL, - _nm_marshal_VOID__POINTER_POINTER_POINTER_POINTER_INT, - G_TYPE_NONE, 5, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_INT); - - signals[DEVICE_REMOVED] = - g_signal_new ("device-removed", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (NMUdevManagerClass, device_removed), - NULL, NULL, - g_cclosure_marshal_VOID__POINTER, - G_TYPE_NONE, 1, G_TYPE_POINTER); - - signals[RFKILL_CHANGED] = - g_signal_new ("rfkill-changed", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_FIRST, - G_STRUCT_OFFSET (NMUdevManagerClass, rfkill_changed), - NULL, NULL, - _nm_marshal_VOID__UINT_UINT, - G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_UINT); -} - |