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libcutils: fs_config() add check /odm/etc/fs_config_* 

Add reading of vendor file-system config files
/odm/etc/fs_config_dirs and /odm/etc/fs_config_files.

Order of interpretation (for dirs and files respectively):
- /system/etc/fs_config_dirs or /system/etc/fs_config_files
- /vendor/etc/fs_config_dirs or /vendor/etc/fs_config_files
- /oem/etc/fs_config_dirs or /oem/etc/fs_config_files
- /odm/etc/fs_config_dirs or /odm/etc/fs_config_files
- internal android_dirs[] or android_files[] structures.

No restrictions are placed on the odm file-system config files,
although the developer is advised to restrict the scope to the /odm
file-system since the intent is to provide support only for
customized portions of odm.img.

Test: full build and install smoke test and inspection
Bug: 36071012
Change-Id: Ic3afb5bb4ea20b15bd5df728be9f16045bf5b039
This commit is contained in:
Mark Salyzyn 2017-03-22 15:23:24 -07:00
parent 2af784bf20
commit 2b616cea9e
1 changed files with 11 additions and 4 deletions
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15
libcutils/fs_config.c
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@ -116,16 +116,21 @@ static const char sys_conf_file[] = "/system/etc/fs_config_files";
* although the developer is advised to restrict the scope to the /vendor or
* oem/ file-system since the intent is to provide support for customized
* portions of a separate vendor.img or oem.img. Has to remain open so that
* customization can also land on /system/vendor or /system/orm. We expect
* build-time checking or filtering when constructing the associated
* fs_config_* files.
* customization can also land on /system/vendor, /system/oem or /system/odm.
* We expect build-time checking or filtering when constructing the associated
* fs_config_* files (see build/tools/fs_config/fs_config_generate.c)
*/
static const char ven_conf_dir[] = "/vendor/etc/fs_config_dirs";
static const char ven_conf_file[] = "/vendor/etc/fs_config_files";
static const char oem_conf_dir[] = "/oem/etc/fs_config_dirs";
static const char oem_conf_file[] = "/oem/etc/fs_config_files";
static const char odm_conf_dir[] = "/odm/etc/fs_config_dirs";
static const char odm_conf_file[] = "/odm/etc/fs_config_files";
static const char* conf[][2] = {
{sys_conf_file, sys_conf_dir}, {ven_conf_file, ven_conf_dir}, {oem_conf_file, oem_conf_dir},
{sys_conf_file, sys_conf_dir},
{ven_conf_file, ven_conf_dir},
{oem_conf_file, oem_conf_dir},
{odm_conf_file, odm_conf_dir},
};
static const struct fs_path_config android_files[] = {
@ -142,6 +147,8 @@ static const struct fs_path_config android_files[] = {
{ 00600, AID_ROOT, AID_ROOT, 0, "default.prop" },
{ 00600, AID_ROOT, AID_ROOT, 0, "odm/build.prop" },
{ 00600, AID_ROOT, AID_ROOT, 0, "odm/default.prop" },
{ 00444, AID_ROOT, AID_ROOT, 0, odm_conf_dir + 1 },
{ 00444, AID_ROOT, AID_ROOT, 0, odm_conf_file + 1 },
{ 00444, AID_ROOT, AID_ROOT, 0, oem_conf_dir + 1 },
{ 00444, AID_ROOT, AID_ROOT, 0, oem_conf_file + 1 },
{ 00750, AID_ROOT, AID_SHELL, 0, "sbin/fs_mgr" },