Support F2FS for the data partition
This adds F2FS support
- for wiping a device
- for the install "format" command.
Note: crypto data in "footer" with a default/negative length
is not supported, unlike with "ext4".
Change-Id: I8d141a0d4d14df9fe84d3b131484e9696fcd8870
Signed-off-by: JP Abgrall <jpa@google.com>
diff --git a/updater/install.c b/updater/install.c
index 42f2289..edc386d 100644
--- a/updater/install.c
+++ b/updater/install.c
@@ -211,14 +211,29 @@
return StringValue(result);
}
+static int exec_cmd(const char* path, char* const argv[]) {
+ int status;
+ pid_t child;
+ if ((child = vfork()) == 0) {
+ execv(path, argv);
+ _exit(-1);
+ }
+ waitpid(child, &status, 0);
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
+ printf("%s failed with status %d\n", path, WEXITSTATUS(status));
+ }
+ return WEXITSTATUS(status);
+}
+
// format(fs_type, partition_type, location, fs_size, mount_point)
//
// fs_type="yaffs2" partition_type="MTD" location=partition fs_size=<bytes> mount_point=<location>
// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
-// if fs_size == 0, then make_ext4fs uses the entire partition.
+// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
+// if fs_size == 0, then make fs uses the entire partition.
// if fs_size > 0, that is the size to use
-// if fs_size < 0, then reserve that many bytes at the end of the partition
+// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs")
Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
char* result = NULL;
if (argc != 5) {
@@ -290,6 +305,24 @@
goto done;
}
result = location;
+ } else if (strcmp(fs_type, "f2fs") == 0) {
+ char *num_sectors;
+ if (asprintf(&num_sectors, "%lld", atoll(fs_size) / 512) <= 0) {
+ printf("format_volume: failed to create %s command for %s\n", fs_type, location);
+ result = strdup("");
+ goto done;
+ }
+ const char *f2fs_path = "/sbin/mkfs.f2fs";
+ const char* const f2fs_argv[] = {"mkfs.f2fs", "-t", "-d1", location, num_sectors, NULL};
+ int status = exec_cmd(f2fs_path, (char* const*)f2fs_argv);
+ free(num_sectors);
+ if (status != 0) {
+ printf("%s: mkfs.f2fs failed (%d) on %s",
+ name, status, location);
+ result = strdup("");
+ goto done;
+ }
+ result = location;
#endif
} else {
printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"",