vold: Change VFAT mount options to enable sdcard write restrictions (b76a63b7) · Commits · e / os / android_system_core

vold/volmgr_vfat.c

+9 −2

Original line number	Diff line number	Diff line
		@@ -118,15 +118,22 @@ int vfat_mount(blkdev_t dev, volume_t vol, boolean safe_mode)
		flags \|= MS_REMOUNT;
		}

		/*
		* The mount masks restrict access so that:
		* 1. The 'system' user cannot access the SD card at all -
		* (protects system_server from grabbing file references)
		* 2. Group users can RWX
		* 3. Others can only RX
		*/
		rc = mount(devpath, vol->mount_point, "vfat", flags,
		"utf8,uid=1000,gid=1000,fmask=711,dmask=700,shortname=mixed");
		"utf8,uid=1000,gid=1015,fmask=702,dmask=702,shortname=mixed");

		if (rc && errno == EROFS) {
		LOGE("vfat_mount(%d:%d, %s): Read only filesystem - retrying mount RO",
		dev->major, dev->minor, vol->mount_point);
		flags \|= MS_RDONLY;
		rc = mount(devpath, vol->mount_point, "vfat", flags,
		"utf8,uid=1000,gid=1000,fmask=711,dmask=700,shortname=mixed");
		"utf8,uid=1000,gid=1015,fmask=702,dmask=702,shortname=mixed");
		}

		#if VFAT_DEBUG