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Commit 366b8b8d authored by Daniel Rosenberg's avatar Daniel Rosenberg
Browse files

Android: sdcardfs: Change cache GID value 



Change-Id: Ieb955dd26493da26a458bc20fbbe75bca32b094f
Signed-off-by: default avatarDaniel Rosenberg <drosen@google.com>
Bug: 37193650
parent 49794787

fs/sdcardfs/derived_perm.c

+1 −1
Original line number Diff line number Diff line
@@ -222,7 +222,7 @@ void fixup_lower_ownership(struct dentry *dentry, const char *name) 
		break;

	case PERM_ANDROID_PACKAGE_CACHE:

		if (info->d_uid != 0)

			gid = multiuser_get_cache_gid(info->d_uid);

			gid = multiuser_get_ext_cache_gid(info->d_uid);

		else

			gid = multiuser_get_uid(info->userid, uid);

		break;

fs/sdcardfs/multiuser.h

+4 −2
Original line number Diff line number Diff line
@@ -23,6 +23,8 @@ 
#define AID_APP_END          19999 /* last app user */

#define AID_CACHE_GID_START  20000 /* start of gids for apps to mark cached data */

#define AID_EXT_GID_START    30000 /* start of gids for apps to mark external data */

#define AID_EXT_CACHE_GID_START 40000 /* start of gids for apps to mark external cached data */

#define AID_EXT_CACHE_GID_END 49999   /* end of gids for apps to mark external cached data */

#define AID_SHARED_GID_START 50000 /* start of gids for apps in each user to share */



typedef uid_t userid_t;
@@ -33,9 +35,9 @@ static inline uid_t multiuser_get_uid(userid_t user_id, appid_t app_id) 
	return (user_id * AID_USER_OFFSET) + (app_id % AID_USER_OFFSET);

}



static inline gid_t multiuser_get_cache_gid(uid_t uid)

static inline gid_t multiuser_get_ext_cache_gid(uid_t uid)

{

	return uid - AID_APP_START + AID_CACHE_GID_START;

	return uid - AID_APP_START + AID_EXT_CACHE_GID_START;

}



static inline gid_t multiuser_get_ext_gid(uid_t uid)