auto import from //branches/cupcake/...@127101
diff --git a/vold/volmgr.c b/vold/volmgr.c
new file mode 100644
index 0000000..8ceb1dd
--- /dev/null
+++ b/vold/volmgr.c
@@ -0,0 +1,792 @@
+
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <sched.h>
+
+#include <sys/mount.h>
+
+#include <cutils/config_utils.h>
+#include <cutils/properties.h>
+
+#include "vold.h"
+#include "volmgr.h"
+#include "blkdev.h"
+#include "ums.h"
+
+#include "volmgr_ext3.h"
+#include "volmgr_vfat.h"
+
+#define DEBUG_VOLMGR 0
+
+static volume_t *vol_root = NULL;
+
+static struct volmgr_fstable_entry fs_table[] = {
+ { "ext3", ext3_identify, ext3_check, ext3_mount },
+ { "vfat", vfat_identify, vfat_check, vfat_mount },
+ { NULL, NULL, NULL, NULL }
+};
+
+struct _volume_state_event_map {
+ volume_state_t state;
+ char *event;
+ char *property_val;
+};
+
+static struct _volume_state_event_map volume_state_strings[] = {
+ { volstate_unknown, "volstate_unknown:", "unknown" },
+ { volstate_nomedia, VOLD_EVT_NOMEDIA, VOLD_ES_PVAL_NOMEDIA },
+ { volstate_unmounted, VOLD_EVT_UNMOUNTED, VOLD_ES_PVAL_UNMOUNTED },
+ { volstate_checking, VOLD_EVT_CHECKING, VOLD_ES_PVAL_CHECKING },
+ { volstate_mounted, VOLD_EVT_MOUNTED, VOLD_ES_PVAL_MOUNTED },
+ { volstate_mounted_ro, VOLD_EVT_MOUNTED_RO, VOLD_ES_PVAL_MOUNTED_RO },
+ { volstate_badremoval, VOLD_EVT_BADREMOVAL, VOLD_ES_PVAL_BADREMOVAL },
+ { volstate_damaged, VOLD_EVT_DAMAGED, VOLD_ES_PVAL_DAMAGED },
+ { volstate_nofs, VOLD_EVT_NOFS, VOLD_ES_PVAL_NOFS },
+ { volstate_ums, VOLD_EVT_UMS, VOLD_ES_PVAL_UMS },
+ { 0, NULL, NULL }
+};
+
+
+static int volmgr_readconfig(char *cfg_path);
+static int volmgr_config_volume(cnode *node);
+static volume_t *volmgr_lookup_volume_by_mediapath(char *media_path, boolean fuzzy);
+static volume_t *volmgr_lookup_volume_by_dev(blkdev_t *dev);
+static int _volmgr_start(volume_t *vol, blkdev_t *dev);
+static int volmgr_start_fs(struct volmgr_fstable_entry *fs, volume_t *vol, blkdev_t *dev);
+static void *volmgr_start_fs_thread(void *arg);
+static void volmgr_start_fs_thread_sighandler(int signo);
+static void volume_setstate(volume_t *vol, volume_state_t state);
+static char *conv_volstate_to_eventstr(volume_state_t state);
+static char *conv_volstate_to_propstr(volume_state_t state);
+static int volume_send_state(volume_t *vol);
+static void _cb_volstopped_for_ums_enable(volume_t *v);
+static int _volmgr_enable_ums(volume_t *);
+static int volmgr_shutdown_volume(volume_t *v, void (* cb) (volume_t *));
+static int volmgr_stop_volume(volume_t *v, void (*cb) (volume_t *, void *), void *arg, int emit_statechange);
+static void _cb_volume_stopped_for_eject(volume_t *v, void *arg);
+static void _cb_volume_stopped_for_shutdown(volume_t *v, void *arg);
+static int _volmgr_consider_disk_and_vol(volume_t *vol, blkdev_t *dev);
+static void volmgr_uncage_reaper(volume_t *vol);
+static void volmgr_reaper_thread_sighandler(int signo);
+
+/*
+ * Public functions
+ */
+int volmgr_bootstrap(void)
+{
+ int rc;
+
+ if ((rc = volmgr_readconfig("/system/etc/vold.conf")) < 0) {
+ LOGE("Unable to process config\n");
+ return rc;
+ }
+
+ return 0;
+}
+
+int volmgr_send_states(void)
+{
+ volume_t *vol_scan = vol_root;
+ int rc;
+
+ while (vol_scan) {
+ pthread_mutex_lock(&vol_scan->lock);
+ if ((rc = volume_send_state(vol_scan)) < 0) {
+ LOGE("Error sending state to framework (%d)\n", rc);
+ }
+ pthread_mutex_unlock(&vol_scan->lock);
+ vol_scan = vol_scan->next;
+ }
+
+ return 0;
+}
+
+/*
+ * Called when a block device is ready to be
+ * evaluated by the volume manager.
+ */
+int volmgr_consider_disk(blkdev_t *dev)
+{
+ volume_t *vol;
+
+ if (!(vol = volmgr_lookup_volume_by_mediapath(dev->media->devpath, true))) {
+ LOG_VOL("volmgr ignoring '%s' - no matching volume found\n", dev->media->devpath);
+ return 0;
+ }
+
+ pthread_mutex_lock(&vol->lock);
+ int rc = _volmgr_consider_disk_and_vol(vol, dev);
+ pthread_mutex_unlock(&vol->lock);
+ return rc;
+}
+
+int volmgr_start_volume_by_mountpoint(char *mount_point)
+{
+ volume_t *v = vol_root;
+
+ while(v) {
+ if (!strcmp(v->mount_point, mount_point)) {
+ pthread_mutex_lock(&v->lock);
+ if (!v->dev) {
+ LOGE("Cannot start volume '%s' (volume is not bound to a blkdev)\n", mount_point);
+ pthread_mutex_unlock(&v->lock);
+ return -ENOENT;
+ }
+
+ if (_volmgr_consider_disk_and_vol(v, v->dev->disk) < 0) {
+ LOGE("volmgr failed to start volume '%s'\n", v->mount_point);
+ }
+ pthread_mutex_unlock(&v->lock);
+ return 0;
+ }
+ v = v->next;
+ }
+
+ return -ENOENT;
+}
+
+int volmgr_stop_volume_by_mountpoint(char *mount_point)
+{
+ volume_t *v = vol_root;
+
+ while(v) {
+ if (!strcmp(v->mount_point, mount_point)) {
+ pthread_mutex_lock(&v->lock);
+ if (volmgr_shutdown_volume(v, _cb_volstopped_for_ums_enable) < 0)
+ LOGE("unable to shutdown volume '%s'\n", v->mount_point);
+ pthread_mutex_unlock(&v->lock);
+ return 0;
+ }
+ v = v->next;
+ }
+
+ return -ENOENT;
+}
+
+int volmgr_notify_eject(blkdev_t *dev, void (* cb) (blkdev_t *))
+{
+#if DEBUG_VOLMGR
+ LOG_VOL("volmgr_notify_eject(%s)\n", dev->dev_fspath);
+#endif
+
+ volume_t *v;
+
+ // XXX: Partitioning support is going to need us to stop *all*
+ // devices in this volume
+ if (!(v = volmgr_lookup_volume_by_dev(dev))) {
+ if (cb)
+ cb(dev);
+ return 0;
+ }
+
+ pthread_mutex_lock(&v->lock);
+ if (v->state == volstate_mounted)
+ volume_setstate(v, volstate_badremoval);
+
+ int rc = volmgr_stop_volume(v, _cb_volume_stopped_for_eject, cb, false);
+
+ pthread_mutex_unlock(&v->lock);
+ return rc;
+}
+
+static void _cb_volume_stopped_for_eject(volume_t *v, void *arg)
+{
+ void (* eject_cb) (blkdev_t *) = arg;
+ LOG_VOL("Volume %s has been stopped for eject\n", v->mount_point);
+
+ eject_cb(v->dev);
+ v->dev = NULL; // Clear dev because its being ejected
+}
+
+/*
+ * Instructs the volume manager to enable or disable USB mass storage
+ * on any volumes configured to use it.
+ */
+int volmgr_enable_ums(boolean enable)
+{
+ volume_t *v = vol_root;
+
+ while(v) {
+ if (v->ums_path) {
+ int rc;
+
+ pthread_mutex_lock(&v->lock);
+ if (enable) {
+ // Stop the volume, and enable UMS in the callback
+ if ((rc = volmgr_shutdown_volume(v, _cb_volstopped_for_ums_enable)) < 0)
+ LOGE("unable to shutdown volume '%s'\n", v->mount_point);
+ } else {
+ // Disable UMS
+ if ((rc = ums_disable(v->ums_path)) < 0) {
+ LOGE("unable to disable ums on '%s'\n", v->mount_point);
+ pthread_mutex_unlock(&v->lock);
+ continue;
+ }
+ volume_setstate(v, volstate_unmounted);
+
+ LOG_VOL("Kick-starting volume '%s' after UMS disable\n", v->dev->disk->dev_fspath);
+ // Start volume
+ if ((rc = _volmgr_consider_disk_and_vol(v, v->dev->disk)) < 0) {
+ LOGE("volmgr failed to consider disk '%s'\n", v->dev->disk->dev_fspath);
+ }
+ }
+ pthread_mutex_unlock(&v->lock);
+ }
+ v = v->next;
+ }
+ return 0;
+}
+
+/*
+ * Static functions
+ */
+
+// vol->lock must be held!
+static int _volmgr_consider_disk_and_vol(volume_t *vol, blkdev_t *dev)
+{
+ int rc = 0;
+
+#if DEBUG_VOLMGR
+ LOG_VOL("volmgr_consider_disk_and_vol(%s, %s):\n", vol->mount_point, dev->dev_fspath);
+#endif
+
+ if (vol->state != volstate_nomedia && vol->state != volstate_unmounted) {
+ LOGE("Volume manager is already handling volume '%s' (currently in state %d)\n", vol->mount_point, vol->state);
+ return -EADDRINUSE;
+ }
+
+ volume_setstate(vol, volstate_unmounted);
+
+ LOG_VOL("Evaluating dev '%s' for mountable filesystems for '%s'\n", dev->devpath, vol->mount_point);
+
+ if (dev->nr_parts == 0) {
+ rc = _volmgr_start(vol, dev);
+#if DEBUG_VOLMGR
+ LOG_VOL("_volmgr_start(%s, %s) rc = %d\n", vol->mount_point, dev->dev_fspath ,rc);
+#endif
+ } else {
+ /*
+ * Device has multiple partitions
+ * This is where interesting partition policies could be implemented.
+ * For now just try them in sequence until one succeeds
+ */
+
+ rc = -ENODEV;
+ int i;
+ for (i = 0; i < dev->nr_parts; i++) {
+ blkdev_t *part = blkdev_lookup_by_devno(dev->major, (i+1));
+ if (!part) {
+ LOGE("Error - unable to lookup partition for blkdev %d:%d\n", dev->major, (i+1));
+ continue;
+ }
+ rc = _volmgr_start(vol, part);
+#if DEBUG_VOLMGR
+ LOG_VOL("_volmgr_start(%s, %s) rc = %d\n", vol->mount_point, part->dev_fspath, rc);
+#endif
+ if (!rc)
+ break;
+ }
+
+ if (rc == -ENODEV) {
+ // Assert to make sure each partition had a backing blkdev
+ LOGE("Internal consistency error\n");
+ return 0;
+ }
+ }
+
+ if (rc == -ENODATA) {
+ LOGE("Device %s contains no usable filesystems\n", dev->dev_fspath);
+ rc = 0;
+ }
+
+ return rc;
+}
+
+static void volmgr_reaper_thread_sighandler(int signo)
+{
+ LOGE("volmgr reaper thread got signal %d\n", signo);
+}
+
+static void __reaper_cleanup(void *arg)
+{
+ volume_t *vol = (volume_t *) arg;
+
+ LOG_VOL("__reaper_cleanup(%s):\n", vol->mount_point);
+
+ vol->worker_running = false;
+
+ // Wake up anyone that was waiting on this thread
+ pthread_mutex_unlock(&vol->worker_sem);
+
+ // Unlock the volume
+ pthread_mutex_unlock(&vol->lock);
+}
+
+static void *volmgr_reaper_thread(void *arg)
+{
+ volume_t *vol = (volume_t *) arg;
+
+ pthread_cleanup_push(__reaper_cleanup, arg);
+ pthread_mutex_lock(&vol->lock);
+
+ vol->worker_running = true;
+ vol->worker_pid = getpid();
+
+ struct sigaction actions;
+
+ memset(&actions, 0, sizeof(actions));
+ sigemptyset(&actions.sa_mask);
+ actions.sa_flags = 0;
+ actions.sa_handler = volmgr_reaper_thread_sighandler;
+ sigaction(SIGUSR1, &actions, NULL);
+
+ LOG_VOL("Worker thread pid %d reaping %s\n", getpid(), vol->mount_point);
+
+ boolean send_sig_kill = false;
+ int i, rc;
+
+ for (i = 0; i < 10; i++) {
+ rc = umount(vol->mount_point);
+ LOG_VOL("volmngr reaper umount(%s) attempt %d rc = %d\n",
+ vol->mount_point, i + 1, rc);
+ if (!rc)
+ break;
+ if (rc && (errno == EINVAL || errno == ENOENT)) {
+ rc = 0;
+ break;
+ }
+ KillProcessesWithOpenFiles(vol->mount_point, send_sig_kill, NULL, 0);
+ sleep(1);
+ if (!send_sig_kill)
+ send_sig_kill = true;
+ }
+
+ if (!rc) {
+ LOG_VOL("Reaper sucessfully unmounted %s\n", vol->mount_point);
+ volume_setstate(vol, volstate_unmounted);
+ } else {
+ LOGE("Unable to unmount!! (%d)\n", rc);
+ }
+
+ out:
+ pthread_cleanup_pop(1);
+ pthread_exit(NULL);
+ return NULL;
+}
+
+static void volmgr_uncage_reaper(volume_t *vol)
+{
+ if (vol->worker_running) {
+ LOGE("Worker thread is currently running.. waiting..\n");
+ pthread_mutex_lock(&vol->worker_sem);
+ LOG_VOL("Worker thread now available\n");
+ }
+
+ vol->worker_args.fs = NULL;
+ vol->worker_args.dev = NULL;
+
+ pthread_attr_t attr;
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+ pthread_create(&vol->worker_thread, &attr, volmgr_reaper_thread, vol);
+}
+
+static int volmgr_stop_volume(volume_t *v, void (*cb) (volume_t *, void *), void *arg, boolean emit_statechange)
+{
+ int i, rc;
+
+ if (v->state == volstate_mounted || v->state == volstate_badremoval) {
+ // Try to unmount right away (5 retries)
+ for (i = 0; i < 5; i++) {
+ rc = umount(v->mount_point);
+ LOG_VOL("volmngr quick stop umount(%s) attempt %d rc = %d\n",
+ v->mount_point, i + 1, rc);
+ if (!rc)
+ break;
+ if (rc && (errno == EINVAL || errno == ENOENT)) {
+ rc = 0;
+ break;
+ }
+ sched_yield();
+ }
+
+ if (!rc) {
+ LOG_VOL("volmgr_stop_volume(%s): Volume unmounted sucessfully\n",
+ v->mount_point);
+ if (emit_statechange)
+ volume_setstate(v, volstate_unmounted);
+ goto out_cb_immed;
+ }
+
+ /*
+ * Since the volume is still in use, dispatch the stopping to
+ * a thread
+ */
+ LOG_VOL("Volume %s is busy (%d) - uncaging the reaper\n", v->mount_point, rc);
+ volmgr_uncage_reaper(v);
+ return -EINPROGRESS;
+ } else if (v->state == volstate_checking) {
+ volume_setstate(v, volstate_unmounted);
+ if (v->worker_running) {
+ LOG_VOL("Cancelling worker thread\n");
+ pthread_kill(v->worker_thread, SIGUSR1);
+ } else
+ LOGE("Strange... we were in checking state but worker thread wasn't running..\n");
+ goto out_cb_immed;
+ }
+
+ LOGE("volmgr: nothing to do to stop vol '%s' (in state %d)\n",
+ v->mount_point, v->state);
+ out_cb_immed:
+ if (cb)
+ cb(v, arg);
+ return 0;
+}
+
+
+/*
+ * Gracefully stop a volume
+ */
+static int volmgr_shutdown_volume(volume_t *v, void (* cb) (volume_t *))
+{
+ return volmgr_stop_volume(v, NULL, cb, true);
+}
+
+static void _cb_volume_stopped_for_shutdown(volume_t *v, void *arg)
+{
+ void (* shutdown_cb) (volume_t *) = arg;
+
+ LOG_VOL("Volume %s has been stopped for shutdown\n", v->mount_point);
+ shutdown_cb(v);
+}
+
+/*
+ * Called when a volume is sucessfully unmounted for UMS enable
+ */
+static void _cb_volstopped_for_ums_enable(volume_t *v)
+{
+ int rc;
+
+ if ((rc = ums_enable(v->dev->dev_fspath, v->ums_path)) < 0) {
+ LOGE("Error enabling ums (%d)\n", rc);
+ return;
+ }
+ volume_setstate(v, volstate_ums);
+}
+
+static int volmgr_readconfig(char *cfg_path)
+{
+ cnode *root = config_node("", "");
+ cnode *node;
+
+ config_load_file(root, cfg_path);
+ node = root->first_child;
+
+ while (node) {
+ if (!strcmp(node->name, "volume"))
+ volmgr_config_volume(node);
+ else
+ LOGE("Skipping unknown configuration node '%s'\n", node->name);
+ node = node->next;
+ }
+ return 0;
+}
+
+static int volmgr_config_volume(cnode *node)
+{
+ volume_t *new;
+ int rc = 0;
+
+ if (!(new = malloc(sizeof(volume_t))))
+ return -ENOMEM;
+ memset(new, 0, sizeof(volume_t));
+
+ new->state = volstate_nomedia;
+ pthread_mutex_init(&new->lock, NULL);
+ pthread_mutex_init(&new->worker_sem, NULL);
+
+ cnode *child = node->first_child;
+
+ while (child) {
+ if (!strcmp(child->name, "media_path"))
+ new->media_path = strdup(child->value);
+ else if (!strcmp(child->name, "media_type")) {
+ if (!strcmp(child->value, "mmc"))
+ new->media_type = media_mmc;
+ else {
+ LOGE("Invalid media type '%s'\n", child->value);
+ rc = -EINVAL;
+ goto out_free;
+ }
+ } else if (!strcmp(child->name, "mount_point"))
+ new->mount_point = strdup(child->value);
+ else if (!strcmp(child->name, "ums_path"))
+ new->ums_path = strdup(child->value);
+ else
+ LOGE("Ignoring unknown config entry '%s'\n", child->name);
+ child = child->next;
+ }
+
+ if (!new->media_path || !new->mount_point || new->media_type == media_unknown) {
+ LOGE("Required configuration parameter missing for volume\n");
+ rc = -EINVAL;
+ goto out_free;
+ }
+
+ if (!vol_root)
+ vol_root = new;
+ else {
+ volume_t *scan = vol_root;
+ while (scan->next)
+ scan = scan->next;
+ scan->next = new;
+ }
+
+ return rc;
+
+ out_free:
+ if (new->media_path)
+ free(new->media_path);
+ if (new->mount_point)
+ free(new->mount_point);
+ if (new->ums_path)
+ free(new->ums_path);
+ return rc;
+}
+
+static volume_t *volmgr_lookup_volume_by_dev(blkdev_t *dev)
+{
+ volume_t *scan = vol_root;
+ while(scan) {
+ if (scan->dev == dev)
+ return scan;
+ scan = scan->next;
+ }
+ return NULL;
+}
+
+static volume_t *volmgr_lookup_volume_by_mediapath(char *media_path, boolean fuzzy)
+{
+ volume_t *scan = vol_root;
+ volume_t *res = NULL;
+
+ while (scan) {
+ if (fuzzy) {
+ if (!strncmp(media_path, scan->media_path, strlen(scan->media_path))) {
+ if (!res)
+ res = scan;
+ else {
+ LOGE("Warning - multiple matching volumes for media '%s' - using first\n", media_path);
+ break;
+ }
+ }
+ } else if (!strcmp(media_path, scan->media_path))
+ return scan;
+
+ scan = scan->next;
+ }
+ return res;
+}
+
+/*
+ * Attempt to bring a volume online
+ * Returns: 0 on success, errno on failure, with the following exceptions:
+ * - ENODATA - Unsupported filesystem type / blank
+ * vol->lock MUST be held!
+ */
+static int _volmgr_start(volume_t *vol, blkdev_t *dev)
+{
+ struct volmgr_fstable_entry *fs;
+ int rc = ENODATA;
+
+#if DEBUG_VOLMGR
+ LOG_VOL("_volmgr_start(%s, %s):\n", vol->mount_point, dev->dev_fspath);
+#endif
+
+ for (fs = fs_table; fs->name; fs++) {
+ if (!fs->identify_fn(dev))
+ break;
+ }
+
+ if (!fs) {
+ LOGE("No supported filesystems on %s\n", dev->dev_fspath);
+ volume_setstate(vol, volstate_nofs);
+ return -ENODATA;
+ }
+
+ return volmgr_start_fs(fs, vol, dev);
+}
+
+// vol->lock MUST be held!
+static int volmgr_start_fs(struct volmgr_fstable_entry *fs, volume_t *vol, blkdev_t *dev)
+{
+ /*
+ * Spawn a thread to do the actual checking / mounting in
+ */
+
+ if (vol->worker_running) {
+ LOGE("Worker thread is currently running.. waiting..\n");
+ pthread_mutex_lock(&vol->worker_sem);
+ LOG_VOL("Worker thread now available\n");
+ }
+
+ vol->dev = dev;
+
+ vol->worker_args.fs = fs;
+ vol->worker_args.dev = dev;
+
+ pthread_attr_t attr;
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+ pthread_create(&vol->worker_thread, &attr, volmgr_start_fs_thread, vol);
+
+ return 0;
+}
+
+static void __start_fs_thread_lock_cleanup(void *arg)
+{
+ volume_t *vol = (volume_t *) arg;
+
+ LOG_VOL("__start_fs_thread_lock_cleanup(%s):\n", vol->mount_point);
+
+ vol->worker_running = false;
+
+ // Wake up anyone that was waiting on this thread
+ pthread_mutex_unlock(&vol->worker_sem);
+
+ // Unlock the volume
+ pthread_mutex_unlock(&vol->lock);
+}
+
+static void *volmgr_start_fs_thread(void *arg)
+{
+ volume_t *vol = (volume_t *) arg;
+
+ pthread_cleanup_push(__start_fs_thread_lock_cleanup, arg);
+ pthread_mutex_lock(&vol->lock);
+
+ vol->worker_running = true;
+ vol->worker_pid = getpid();
+
+ struct sigaction actions;
+
+ memset(&actions, 0, sizeof(actions));
+ sigemptyset(&actions.sa_mask);
+ actions.sa_flags = 0;
+ actions.sa_handler = volmgr_start_fs_thread_sighandler;
+ sigaction(SIGUSR1, &actions, NULL);
+
+ struct volmgr_fstable_entry *fs = vol->worker_args.fs;
+ blkdev_t *dev = vol->worker_args.dev;
+ int rc;
+
+ LOG_VOL("Worker thread pid %d starting %s fs %s on %s\n", getpid(), fs->name, dev->dev_fspath, vol->mount_point);
+
+ if (fs->check_fn) {
+ LOG_VOL("Starting %s filesystem check on %s\n", fs->name, dev->dev_fspath);
+ volume_setstate(vol, volstate_checking);
+ pthread_mutex_unlock(&vol->lock);
+ rc = fs->check_fn(dev);
+ pthread_mutex_lock(&vol->lock);
+ if (vol->state != volstate_checking) {
+ LOG_VOL("filesystem check aborted\n");
+ goto out;
+ }
+
+ if (rc < 0) {
+ LOG_VOL("%s filesystem check failed on %s\n", fs->name, dev->dev_fspath);
+ goto out_unmountable;
+ }
+ LOG_VOL("%s filesystem check of %s OK\n", fs->name, dev->dev_fspath);
+ }
+
+ rc = fs->mount_fn(dev, vol);
+ if (!rc) {
+ LOG_VOL("Sucessfully mounted %s filesystem %s on %s\n", fs->name, dev->devpath, vol->mount_point);
+ volume_setstate(vol, volstate_mounted);
+ goto out;
+ }
+
+ LOGE("%s filesystem mount of %s failed (%d)\n", fs->name, dev->devpath, rc);
+
+ out_unmountable:
+ volume_setstate(vol, volstate_damaged);
+ out:
+ pthread_cleanup_pop(1);
+ pthread_exit(NULL);
+ return NULL;
+}
+
+static void volmgr_start_fs_thread_sighandler(int signo)
+{
+ LOGE("volmgr thread got signal %d\n", signo);
+}
+
+static void volume_setstate(volume_t *vol, volume_state_t state)
+{
+ LOG_VOL("Volume %s state change from %d -> %d\n", vol->mount_point, vol->state, state);
+
+ vol->state = state;
+
+ char *prop_val = conv_volstate_to_propstr(vol->state);
+
+ property_set(PROP_EXTERNAL_STORAGE_STATE, prop_val);
+ volume_send_state(vol);
+}
+
+static int volume_send_state(volume_t *vol)
+{
+ char *event = conv_volstate_to_eventstr(vol->state);
+
+ return send_msg_with_data(event, vol->mount_point);
+}
+
+static char *conv_volstate_to_eventstr(volume_state_t state)
+{
+ int i;
+
+ for (i = 0; volume_state_strings[i].event != NULL; i++) {
+ if (volume_state_strings[i].state == state)
+ break;
+ }
+
+ if (!volume_state_strings[i].event)
+ LOGE("conv_volstate_to_eventstr(%d): Invalid state\n", state);
+ return volume_state_strings[i].event;
+}
+
+static char *conv_volstate_to_propstr(volume_state_t state)
+{
+ int i;
+
+ for (i = 0; volume_state_strings[i].event != NULL; i++) {
+ if (volume_state_strings[i].state == state)
+ break;
+ }
+
+ if (!volume_state_strings[i].event)
+ LOGE("conv_volstate_to_propval(%d): Invalid state\n", state);
+ return volume_state_strings[i].property_val;
+}
+