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am 25aabb9e: Permission to view shared storage for all users.

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* commit '25aabb9edeb9203e52758d307b8a94ec8c64d338':
  Permission to view shared storage for all users.
This commit is contained in:
Jeff Sharkey 2015-07-06 19:18:20 +00:00 • committed by Android Git Automerger
commit 341b607c89
1 changed files with 10 additions and 1 deletions
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11
sdcard/sdcard.c
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@ -444,7 +444,16 @@ static void derive_permissions_locked(struct fuse* fuse, struct node *parent,
/* Legacy internal layout places users at top level */
node->perm = PERM_ROOT;
node->userid = strtoul(node->name, NULL, 10);
node->gid = multiuser_get_uid(node->userid, fuse->gid);
if (fuse->gid == AID_SDCARD_RW) {
/* As an optimization, certain trusted system components only run
* as owner but operate across all users. Since we're now handing
* out the sdcard_rw GID only to trusted apps, we're okay relaxing
* the user boundary enforcement for the default view. The UIDs
* assigned to app directories are still multiuser aware. */
node->gid = fuse->gid;
} else {
node->gid = multiuser_get_uid(node->userid, fuse->gid);
}
node->mode = 0771;
break;
case PERM_ROOT: