Add support for tune2fs file operations
This allows tune2fs to be executed from within OTA scripts,
allowing for file system modifications without formatting the
partition
Bug: 18430740
Change-Id: I0c2e05b5ef4a81ecea043e9b7b99b545d18fe5e6
diff --git a/updater/install.c b/updater/install.c
index ff7de47..2b2ffb0 100644
--- a/updater/install.c
+++ b/updater/install.c
@@ -46,6 +46,7 @@
#include "mtdutils/mtdutils.h"
#include "updater.h"
#include "install.h"
+#include "tune2fs.h"
#ifdef USE_EXT4
#include "make_ext4fs.h"
@@ -1539,6 +1540,37 @@
return StringValue(strdup("t"));
}
+Value* Tune2FsFn(const char* name, State* state, int argc, Expr* argv[]) {
+ if (argc == 0) {
+ return ErrorAbort(state, "%s() expects args, got %d", name, argc);
+ }
+
+ char** args = ReadVarArgs(state, argc, argv);
+ if (args == NULL) {
+ return ErrorAbort(state, "%s() could not read args", name);
+ }
+
+ int i;
+ char** args2 = malloc(sizeof(char*) * (argc+1));
+ // Tune2fs expects the program name as its args[0]
+ args2[0] = strdup(name);
+ for (i = 0; i < argc; ++i) {
+ args2[i + 1] = args[i];
+ }
+ int result = tune2fs_main(argc + 1, args2);
+ for (i = 0; i < argc; ++i) {
+ free(args[i]);
+ }
+ free(args);
+
+ free(args2[0]);
+ free(args2);
+ if (result != 0) {
+ return ErrorAbort(state, "%s() returned error code %d", name, result);
+ }
+ return StringValue(strdup("t"));
+}
+
void RegisterInstallFunctions() {
RegisterFunction("mount", MountFn);
RegisterFunction("is_mounted", IsMountedFn);
@@ -1589,4 +1621,5 @@
RegisterFunction("set_stage", SetStageFn);
RegisterFunction("enable_reboot", EnableRebootFn);
+ RegisterFunction("tune2fs", Tune2FsFn);
}