support for ext4/EMMC filesystems in updater binary
Make the mount and format functions take extra parameters describing
the filesystem type and add support for mounting and formatting ext4
filesystems on EMMC.
Change recovery to consistently use stdout for status messages instead
of mixing stdout and stderr.
diff --git a/updater/install.c b/updater/install.c
index e869134..167b402 100644
--- a/updater/install.c
+++ b/updater/install.c
@@ -36,24 +36,35 @@
#include "updater.h"
#include "applypatch/applypatch.h"
-// mount(type, location, mount_point)
+#ifdef USE_EXT4
+#include "make_ext4fs.h"
+#endif
+
+// mount(fs_type, partition_type, location, mount_point)
//
-// what: type="MTD" location="<partition>" to mount a yaffs2 filesystem
-// type="vfat" location="/dev/block/<whatever>" to mount a device
+// fs_type="yaffs2" partition_type="MTD" location=partition
+// fs_type="ext4" partition_type="EMMC" location=device
Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
char* result = NULL;
- if (argc != 3) {
- return ErrorAbort(state, "%s() expects 3 args, got %d", name, argc);
+ if (argc != 4) {
+ return ErrorAbort(state, "%s() expects 4 args, got %d", name, argc);
}
- char* type;
+ char* fs_type;
+ char* partition_type;
char* location;
char* mount_point;
- if (ReadArgs(state, argv, 3, &type, &location, &mount_point) < 0) {
+ if (ReadArgs(state, argv, 4, &fs_type, &partition_type,
+ &location, &mount_point) < 0) {
return NULL;
}
- if (strlen(type) == 0) {
- ErrorAbort(state, "type argument to %s() can't be empty", name);
+ if (strlen(fs_type) == 0) {
+ ErrorAbort(state, "fs_type argument to %s() can't be empty", name);
+ goto done;
+ }
+ if (strlen(partition_type) == 0) {
+ ErrorAbort(state, "partition_type argument to %s() can't be empty",
+ name);
goto done;
}
if (strlen(location) == 0) {
@@ -67,7 +78,7 @@
mkdir(mount_point, 0755);
- if (strcmp(type, "MTD") == 0) {
+ if (strcmp(partition_type, "MTD") == 0) {
mtd_scan_partitions();
const MtdPartition* mtd;
mtd = mtd_find_partition_by_name(location);
@@ -77,7 +88,7 @@
result = strdup("");
goto done;
}
- if (mtd_mount_partition(mtd, mount_point, "yaffs2", 0 /* rw */) != 0) {
+ if (mtd_mount_partition(mtd, mount_point, fs_type, 0 /* rw */) != 0) {
fprintf(stderr, "mtd mount of %s failed: %s\n",
location, strerror(errno));
result = strdup("");
@@ -85,7 +96,7 @@
}
result = mount_point;
} else {
- if (mount(location, mount_point, type,
+ if (mount(location, mount_point, fs_type,
MS_NOATIME | MS_NODEV | MS_NODIRATIME, "") < 0) {
fprintf(stderr, "%s: failed to mount %s at %s: %s\n",
name, location, mount_point, strerror(errno));
@@ -96,7 +107,8 @@
}
done:
- free(type);
+ free(fs_type);
+ free(partition_type);
free(location);
if (result != mount_point) free(mount_point);
return StringValue(result);
@@ -162,22 +174,29 @@
}
-// format(type, location)
+// format(fs_type, partition_type, location)
//
-// type="MTD" location=partition
+// fs_type="yaffs2" partition_type="MTD" location=partition
+// fs_type="ext4" partition_type="EMMC" location=device
Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
char* result = NULL;
- if (argc != 2) {
- return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
+ if (argc != 3) {
+ return ErrorAbort(state, "%s() expects 3 args, got %d", name, argc);
}
- char* type;
+ char* fs_type;
+ char* partition_type;
char* location;
- if (ReadArgs(state, argv, 2, &type, &location) < 0) {
+ if (ReadArgs(state, argv, 3, &fs_type, &partition_type, &location) < 0) {
return NULL;
}
- if (strlen(type) == 0) {
- ErrorAbort(state, "type argument to %s() can't be empty", name);
+ if (strlen(fs_type) == 0) {
+ ErrorAbort(state, "fs_type argument to %s() can't be empty", name);
+ goto done;
+ }
+ if (strlen(partition_type) == 0) {
+ ErrorAbort(state, "partition_type argument to %s() can't be empty",
+ name);
goto done;
}
if (strlen(location) == 0) {
@@ -185,7 +204,7 @@
goto done;
}
- if (strcmp(type, "MTD") == 0) {
+ if (strcmp(partition_type, "MTD") == 0) {
mtd_scan_partitions();
const MtdPartition* mtd = mtd_find_partition_by_name(location);
if (mtd == NULL) {
@@ -212,12 +231,26 @@
goto done;
}
result = location;
+#ifdef USE_EXT4
+ } else if (strcmp(fs_type, "ext4") == 0) {
+ reset_ext4fs_info();
+ int status = make_ext4fs(location, NULL, NULL, 0, 0);
+ if (status != 0) {
+ fprintf(stderr, "%s: make_ext4fs failed (%d) on %s",
+ name, status, location);
+ result = strdup("");
+ goto done;
+ }
+ result = location;
+#endif
} else {
- fprintf(stderr, "%s: unsupported type \"%s\"", name, type);
+ fprintf(stderr, "%s: unsupported fs_type \"%s\" partition_type \"%s\"",
+ name, fs_type, partition_type);
}
done:
- free(type);
+ free(fs_type);
+ free(partition_type);
if (result != location) free(location);
return StringValue(result);
}