Per-app media directories on external storage.
This change defines per-app directories on external storage that
will be scanned and included in MediaStore. This gives apps a way
to write content to secondary shared storage in a way that can
easily be surfaced to other apps.
Bug: 14382377
Change-Id: I6f03d8076a9391d8b9eb8421ec3fc93669b3ba0d
diff --git a/sdcard/sdcard.c b/sdcard/sdcard.c
index 7baad63..3a164ed 100644
--- a/sdcard/sdcard.c
+++ b/sdcard/sdcard.c
@@ -139,6 +139,8 @@
PERM_ANDROID_DATA,
/* This node is "/Android/obb" */
PERM_ANDROID_OBB,
+ /* This node is "/Android/media" */
+ PERM_ANDROID_MEDIA,
/* This node is "/Android/user" */
PERM_ANDROID_USER,
} perm_t;
@@ -475,6 +477,10 @@
/* Single OBB directory is always shared */
node->graft_path = fuse->obbpath;
node->graft_pathlen = strlen(fuse->obbpath);
+ } else if (!strcasecmp(node->name, "media")) {
+ /* App-specific directories inside; let anyone traverse */
+ node->perm = PERM_ANDROID_MEDIA;
+ node->mode = 0771;
} else if (!strcasecmp(node->name, "user")) {
/* User directories must only be accessible to system, protected
* by sdcard_all. Zygote will bind mount the appropriate user-
@@ -486,6 +492,7 @@
break;
case PERM_ANDROID_DATA:
case PERM_ANDROID_OBB:
+ case PERM_ANDROID_MEDIA:
appid = (appid_t) (uintptr_t) hashmapGet(fuse->package_to_appid, node->name);
if (appid != 0) {
node->uid = multiuser_get_uid(parent->userid, appid);