summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Android.mk10
-rw-r--r--applypatch/Android.mk4
-rw-r--r--applypatch/applypatch.c311
-rw-r--r--applypatch/applypatch.h9
-rw-r--r--applypatch/main.c2
-rw-r--r--bootloader.c55
-rw-r--r--common.h8
-rw-r--r--default_recovery_ui.c2
-rw-r--r--install.c2
-rw-r--r--minelf/Android.mk27
-rw-r--r--minelf/Retouch.c406
-rw-r--r--minelf/Retouch.h51
-rw-r--r--recovery.c12
-rw-r--r--recovery_ui.h3
-rw-r--r--roots.c45
-rw-r--r--ui.c4
-rw-r--r--updater/Android.mk11
-rw-r--r--updater/install.c205
18 files changed, 999 insertions, 168 deletions
diff --git a/Android.mk b/Android.mk
index b0fefbd90..e8e7a79ab 100644
--- a/Android.mk
+++ b/Android.mk
@@ -24,6 +24,14 @@ LOCAL_FORCE_STATIC_EXECUTABLE := true
RECOVERY_API_VERSION := 3
LOCAL_CFLAGS += -DRECOVERY_API_VERSION=$(RECOVERY_API_VERSION)
+LOCAL_STATIC_LIBRARIES :=
+
+ifeq ($(TARGET_USERIMAGES_USE_EXT4), true)
+LOCAL_CFLAGS += -DUSE_EXT4
+LOCAL_C_INCLUDES += system/extras/ext4_utils
+LOCAL_STATIC_LIBRARIES += libext4_utils libz
+endif
+
# This binary is in the recovery ramdisk, which is otherwise a copy of root.
# It gets copied there in config/Makefile. LOCAL_MODULE_TAGS suppresses
# a (redundant) copy of the binary in /system/bin for user builds.
@@ -31,7 +39,6 @@ LOCAL_CFLAGS += -DRECOVERY_API_VERSION=$(RECOVERY_API_VERSION)
LOCAL_MODULE_TAGS := eng
-LOCAL_STATIC_LIBRARIES :=
ifeq ($(TARGET_RECOVERY_UI_LIB),)
LOCAL_SRC_FILES += default_recovery_ui.c
else
@@ -60,6 +67,7 @@ include $(BUILD_EXECUTABLE)
include $(commands_recovery_local_path)/minui/Android.mk
+include $(commands_recovery_local_path)/minelf/Android.mk
include $(commands_recovery_local_path)/minzip/Android.mk
include $(commands_recovery_local_path)/mtdutils/Android.mk
include $(commands_recovery_local_path)/tools/Android.mk
diff --git a/applypatch/Android.mk b/applypatch/Android.mk
index e91e4bf88..eff1d77b3 100644
--- a/applypatch/Android.mk
+++ b/applypatch/Android.mk
@@ -31,7 +31,7 @@ include $(CLEAR_VARS)
LOCAL_SRC_FILES := main.c
LOCAL_MODULE := applypatch
LOCAL_C_INCLUDES += bootable/recovery
-LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz
+LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz libminelf
LOCAL_SHARED_LIBRARIES += libz libcutils libstdc++ libc
include $(BUILD_EXECUTABLE)
@@ -43,7 +43,7 @@ LOCAL_MODULE := applypatch_static
LOCAL_FORCE_STATIC_EXECUTABLE := true
LOCAL_MODULE_TAGS := eng
LOCAL_C_INCLUDES += bootable/recovery
-LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz
+LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz libminelf
LOCAL_STATIC_LIBRARIES += libz libcutils libstdc++ libc
include $(BUILD_EXECUTABLE)
diff --git a/applypatch/applypatch.c b/applypatch/applypatch.c
index b85b91592..106091386 100644
--- a/applypatch/applypatch.c
+++ b/applypatch/applypatch.c
@@ -31,21 +31,27 @@
#include "edify/expr.h"
int SaveFileContents(const char* filename, FileContents file);
-int LoadMTDContents(const char* filename, FileContents* file);
+static int LoadPartitionContents(const char* filename, FileContents* file);
int ParseSha1(const char* str, uint8_t* digest);
-ssize_t FileSink(unsigned char* data, ssize_t len, void* token);
+static ssize_t FileSink(unsigned char* data, ssize_t len, void* token);
static int mtd_partitions_scanned = 0;
-// Read a file into memory; store it and its associated metadata in
-// *file. Return 0 on success.
-int LoadFileContents(const char* filename, FileContents* file) {
+// Read a file into memory; optionally (retouch_flag == RETOUCH_DO_MASK) mask
+// the retouched entries back to their original value (such that SHA-1 checks
+// don't fail due to randomization); store the file contents and associated
+// metadata in *file.
+//
+// Return 0 on success.
+int LoadFileContents(const char* filename, FileContents* file,
+ int retouch_flag) {
file->data = NULL;
- // A special 'filename' beginning with "MTD:" means to load the
- // contents of an MTD partition.
- if (strncmp(filename, "MTD:", 4) == 0) {
- return LoadMTDContents(filename, file);
+ // A special 'filename' beginning with "MTD:" or "EMMC:" means to
+ // load the contents of a partition.
+ if (strncmp(filename, "MTD:", 4) == 0 ||
+ strncmp(filename, "EMMC:", 5) == 0) {
+ return LoadPartitionContents(filename, file);
}
if (stat(filename, &file->st) != 0) {
@@ -74,6 +80,20 @@ int LoadFileContents(const char* filename, FileContents* file) {
}
fclose(f);
+ // apply_patch[_check] functions are blind to randomization. Randomization
+ // is taken care of in [Undo]RetouchBinariesFn. If there is a mismatch
+ // within a file, this means the file is assumed "corrupt" for simplicity.
+ if (retouch_flag) {
+ int32_t desired_offset = 0;
+ if (retouch_mask_data(file->data, file->size,
+ &desired_offset, NULL) != RETOUCH_DATA_MATCHED) {
+ printf("error trying to mask retouch entries\n");
+ free(file->data);
+ file->data = NULL;
+ return -1;
+ }
+ }
+
SHA(file->data, file->size, file->sha1);
return 0;
}
@@ -98,26 +118,35 @@ void FreeFileContents(FileContents* file) {
free(file);
}
-// Load the contents of an MTD partition into the provided
+// Load the contents of an MTD or EMMC partition into the provided
// FileContents. filename should be a string of the form
-// "MTD:<partition_name>:<size_1>:<sha1_1>:<size_2>:<sha1_2>:...".
-// The smallest size_n bytes for which that prefix of the mtd contents
-// has the corresponding sha1 hash will be loaded. It is acceptable
-// for a size value to be repeated with different sha1s. Will return
-// 0 on success.
+// "MTD:<partition_name>:<size_1>:<sha1_1>:<size_2>:<sha1_2>:..." (or
+// "EMMC:<partition_device>:..."). The smallest size_n bytes for
+// which that prefix of the partition contents has the corresponding
+// sha1 hash will be loaded. It is acceptable for a size value to be
+// repeated with different sha1s. Will return 0 on success.
//
// This complexity is needed because if an OTA installation is
// interrupted, the partition might contain either the source or the
// target data, which might be of different lengths. We need to know
-// the length in order to read from MTD (there is no "end-of-file"
-// marker), so the caller must specify the possible lengths and the
-// hash of the data, and we'll do the load expecting to find one of
-// those hashes.
-int LoadMTDContents(const char* filename, FileContents* file) {
+// the length in order to read from a partition (there is no
+// "end-of-file" marker), so the caller must specify the possible
+// lengths and the hash of the data, and we'll do the load expecting
+// to find one of those hashes.
+enum PartitionType { MTD, EMMC };
+
+static int LoadPartitionContents(const char* filename, FileContents* file) {
char* copy = strdup(filename);
const char* magic = strtok(copy, ":");
- if (strcmp(magic, "MTD") != 0) {
- printf("LoadMTDContents called with bad filename (%s)\n",
+
+ enum PartitionType type;
+
+ if (strcmp(magic, "MTD") == 0) {
+ type = MTD;
+ } else if (strcmp(magic, "EMMC") == 0) {
+ type = EMMC;
+ } else {
+ printf("LoadPartitionContents called with bad filename (%s)\n",
filename);
return -1;
}
@@ -131,7 +160,7 @@ int LoadMTDContents(const char* filename, FileContents* file) {
}
}
if (colons < 3 || colons%2 == 0) {
- printf("LoadMTDContents called with bad filename (%s)\n",
+ printf("LoadPartitionContents called with bad filename (%s)\n",
filename);
}
@@ -144,7 +173,7 @@ int LoadMTDContents(const char* filename, FileContents* file) {
const char* size_str = strtok(NULL, ":");
size[i] = strtol(size_str, NULL, 10);
if (size[i] == 0) {
- printf("LoadMTDContents called with bad size (%s)\n", filename);
+ printf("LoadPartitionContents called with bad size (%s)\n", filename);
return -1;
}
sha1sum[i] = strtok(NULL, ":");
@@ -156,23 +185,38 @@ int LoadMTDContents(const char* filename, FileContents* file) {
size_array = size;
qsort(index, pairs, sizeof(int), compare_size_indices);
- if (!mtd_partitions_scanned) {
- mtd_scan_partitions();
- mtd_partitions_scanned = 1;
- }
+ MtdReadContext* ctx = NULL;
+ FILE* dev = NULL;
- const MtdPartition* mtd = mtd_find_partition_by_name(partition);
- if (mtd == NULL) {
- printf("mtd partition \"%s\" not found (loading %s)\n",
- partition, filename);
- return -1;
- }
+ switch (type) {
+ case MTD:
+ if (!mtd_partitions_scanned) {
+ mtd_scan_partitions();
+ mtd_partitions_scanned = 1;
+ }
- MtdReadContext* ctx = mtd_read_partition(mtd);
- if (ctx == NULL) {
- printf("failed to initialize read of mtd partition \"%s\"\n",
- partition);
- return -1;
+ const MtdPartition* mtd = mtd_find_partition_by_name(partition);
+ if (mtd == NULL) {
+ printf("mtd partition \"%s\" not found (loading %s)\n",
+ partition, filename);
+ return -1;
+ }
+
+ ctx = mtd_read_partition(mtd);
+ if (ctx == NULL) {
+ printf("failed to initialize read of mtd partition \"%s\"\n",
+ partition);
+ return -1;
+ }
+ break;
+
+ case EMMC:
+ dev = fopen(partition, "rb");
+ if (dev == NULL) {
+ printf("failed to open emmc partition \"%s\": %s\n",
+ partition, strerror(errno));
+ return -1;
+ }
}
SHA_CTX sha_ctx;
@@ -191,7 +235,15 @@ int LoadMTDContents(const char* filename, FileContents* file) {
size_t next = size[index[i]] - file->size;
size_t read = 0;
if (next > 0) {
- read = mtd_read_data(ctx, p, next);
+ switch (type) {
+ case MTD:
+ read = mtd_read_data(ctx, p, next);
+ break;
+
+ case EMMC:
+ read = fread(p, 1, next, dev);
+ break;
+ }
if (next != read) {
printf("short read (%d bytes of %d) for partition \"%s\"\n",
read, next, partition);
@@ -220,7 +272,7 @@ int LoadMTDContents(const char* filename, FileContents* file) {
if (memcmp(sha_so_far, parsed_sha, SHA_DIGEST_SIZE) == 0) {
// we have a match. stop reading the partition; we'll return
// the data we've read so far.
- printf("mtd read matched size %d sha %s\n",
+ printf("partition read matched size %d sha %s\n",
size[index[i]], sha1sum[index[i]]);
break;
}
@@ -228,12 +280,21 @@ int LoadMTDContents(const char* filename, FileContents* file) {
p += read;
}
- mtd_read_close(ctx);
+ switch (type) {
+ case MTD:
+ mtd_read_close(ctx);
+ break;
+
+ case EMMC:
+ fclose(dev);
+ break;
+ }
+
if (i == pairs) {
// Ran off the end of the list of (size,sha1) pairs without
// finding a match.
- printf("contents of MTD partition \"%s\" didn't match %s\n",
+ printf("contents of partition \"%s\" didn't match %s\n",
partition, filename);
free(file->data);
file->data = NULL;
@@ -292,61 +353,87 @@ int SaveFileContents(const char* filename, FileContents file) {
return 0;
}
-// Write a memory buffer to target_mtd partition, a string of the form
-// "MTD:<partition>[:...]". Return 0 on success.
-int WriteToMTDPartition(unsigned char* data, size_t len,
- const char* target_mtd) {
- char* partition = strchr(target_mtd, ':');
- if (partition == NULL) {
- printf("bad MTD target name \"%s\"\n", target_mtd);
- return -1;
- }
- ++partition;
- // Trim off anything after a colon, eg "MTD:boot:blah:blah:blah...".
- // We want just the partition name "boot".
- partition = strdup(partition);
- char* end = strchr(partition, ':');
- if (end != NULL)
- *end = '\0';
-
- if (!mtd_partitions_scanned) {
- mtd_scan_partitions();
- mtd_partitions_scanned = 1;
- }
+// Write a memory buffer to 'target' partition, a string of the form
+// "MTD:<partition>[:...]" or "EMMC:<partition_device>:". Return 0 on
+// success.
+int WriteToPartition(unsigned char* data, size_t len,
+ const char* target) {
+ char* copy = strdup(target);
+ const char* magic = strtok(copy, ":");
- const MtdPartition* mtd = mtd_find_partition_by_name(partition);
- if (mtd == NULL) {
- printf("mtd partition \"%s\" not found for writing\n", partition);
+ enum PartitionType type;
+ if (strcmp(magic, "MTD") == 0) {
+ type = MTD;
+ } else if (strcmp(magic, "EMMC") == 0) {
+ type = EMMC;
+ } else {
+ printf("WriteToPartition called with bad target (%s)\n", target);
return -1;
}
+ const char* partition = strtok(NULL, ":");
- MtdWriteContext* ctx = mtd_write_partition(mtd);
- if (ctx == NULL) {
- printf("failed to init mtd partition \"%s\" for writing\n",
- partition);
+ if (partition == NULL) {
+ printf("bad partition target name \"%s\"\n", target);
return -1;
}
- size_t written = mtd_write_data(ctx, (char*)data, len);
- if (written != len) {
- printf("only wrote %d of %d bytes to MTD %s\n",
- written, len, partition);
- mtd_write_close(ctx);
- return -1;
- }
+ switch (type) {
+ case MTD:
+ if (!mtd_partitions_scanned) {
+ mtd_scan_partitions();
+ mtd_partitions_scanned = 1;
+ }
- if (mtd_erase_blocks(ctx, -1) < 0) {
- printf("error finishing mtd write of %s\n", partition);
- mtd_write_close(ctx);
- return -1;
- }
+ const MtdPartition* mtd = mtd_find_partition_by_name(partition);
+ if (mtd == NULL) {
+ printf("mtd partition \"%s\" not found for writing\n",
+ partition);
+ return -1;
+ }
- if (mtd_write_close(ctx)) {
- printf("error closing mtd write of %s\n", partition);
- return -1;
+ MtdWriteContext* ctx = mtd_write_partition(mtd);
+ if (ctx == NULL) {
+ printf("failed to init mtd partition \"%s\" for writing\n",
+ partition);
+ return -1;
+ }
+
+ size_t written = mtd_write_data(ctx, (char*)data, len);
+ if (written != len) {
+ printf("only wrote %d of %d bytes to MTD %s\n",
+ written, len, partition);
+ mtd_write_close(ctx);
+ return -1;
+ }
+
+ if (mtd_erase_blocks(ctx, -1) < 0) {
+ printf("error finishing mtd write of %s\n", partition);
+ mtd_write_close(ctx);
+ return -1;
+ }
+
+ if (mtd_write_close(ctx)) {
+ printf("error closing mtd write of %s\n", partition);
+ return -1;
+ }
+ break;
+
+ case EMMC:
+ ;
+ FILE* f = fopen(partition, "wb");
+ if (fwrite(data, 1, len, f) != len) {
+ printf("short write writing to %s (%s)\n",
+ partition, strerror(errno));
+ return -1;
+ }
+ if (fclose(f) != 0) {
+ printf("error closing %s (%s)\n", partition, strerror(errno));
+ return -1;
+ }
+ break;
}
- free(partition);
+ free(copy);
return 0;
}
@@ -406,10 +493,10 @@ int applypatch_check(const char* filename,
file.data = NULL;
// It's okay to specify no sha1s; the check will pass if the
- // LoadFileContents is successful. (Useful for reading MTD
+ // LoadFileContents is successful. (Useful for reading
// partitions, where the filename encodes the sha1s; no need to
// check them twice.)
- if (LoadFileContents(filename, &file) != 0 ||
+ if (LoadFileContents(filename, &file, RETOUCH_DO_MASK) != 0 ||
(num_patches > 0 &&
FindMatchingPatch(file.sha1, patch_sha1_str, num_patches) < 0)) {
printf("file \"%s\" doesn't have any of expected "
@@ -423,7 +510,7 @@ int applypatch_check(const char* filename,
// exists and matches the sha1 we're looking for, the check still
// passes.
- if (LoadFileContents(CACHE_TEMP_SOURCE, &file) != 0) {
+ if (LoadFileContents(CACHE_TEMP_SOURCE, &file, RETOUCH_DO_MASK) != 0) {
printf("failed to load cache file\n");
return 1;
}
@@ -518,8 +605,8 @@ int CacheSizeCheck(size_t bytes) {
// - otherwise, or if any error is encountered, exits with non-zero
// status.
//
-// <source_filename> may refer to an MTD partition to read the source
-// data. See the comments for the LoadMTDContents() function above
+// <source_filename> may refer to a partition to read the source data.
+// See the comments for the LoadPartition Contents() function above
// for the format of such a filename.
int applypatch(const char* source_filename,
@@ -549,7 +636,8 @@ int applypatch(const char* source_filename,
int made_copy = 0;
// We try to load the target file into the source_file object.
- if (LoadFileContents(target_filename, &source_file) == 0) {
+ if (LoadFileContents(target_filename, &source_file,
+ RETOUCH_DO_MASK) == 0) {
if (memcmp(source_file.sha1, target_sha1, SHA_DIGEST_SIZE) == 0) {
// The early-exit case: the patch was already applied, this file
// has the desired hash, nothing for us to do.
@@ -565,7 +653,8 @@ int applypatch(const char* source_filename,
// Need to load the source file: either we failed to load the
// target file, or we did but it's different from the source file.
free(source_file.data);
- LoadFileContents(source_filename, &source_file);
+ LoadFileContents(source_filename, &source_file,
+ RETOUCH_DO_MASK);
}
if (source_file.data != NULL) {
@@ -580,7 +669,8 @@ int applypatch(const char* source_filename,
free(source_file.data);
printf("source file is bad; trying copy\n");
- if (LoadFileContents(CACHE_TEMP_SOURCE, &copy_file) < 0) {
+ if (LoadFileContents(CACHE_TEMP_SOURCE, &copy_file,
+ RETOUCH_DO_MASK) < 0) {
// fail.
printf("failed to read copy file\n");
return 1;
@@ -623,14 +713,16 @@ int applypatch(const char* source_filename,
// Is there enough room in the target filesystem to hold the patched
// file?
- if (strncmp(target_filename, "MTD:", 4) == 0) {
- // If the target is an MTD partition, we're actually going to
- // write the output to /tmp and then copy it to the partition.
- // statfs() always returns 0 blocks free for /tmp, so instead
- // we'll just assume that /tmp has enough space to hold the file.
+ if (strncmp(target_filename, "MTD:", 4) == 0 ||
+ strncmp(target_filename, "EMMC:", 5) == 0) {
+ // If the target is a partition, we're actually going to
+ // write the output to /tmp and then copy it to the
+ // partition. statfs() always returns 0 blocks free for
+ // /tmp, so instead we'll just assume that /tmp has enough
+ // space to hold the file.
- // We still write the original source to cache, in case the MTD
- // write is interrupted.
+ // We still write the original source to cache, in case
+ // the partition write is interrupted.
if (MakeFreeSpaceOnCache(source_file.size) < 0) {
printf("not enough free space on /cache\n");
return 1;
@@ -661,11 +753,13 @@ int applypatch(const char* source_filename,
// copy the source file to cache, then delete it from the original
// location.
- if (strncmp(source_filename, "MTD:", 4) == 0) {
+ if (strncmp(source_filename, "MTD:", 4) == 0 ||
+ strncmp(source_filename, "EMMC:", 5) == 0) {
// It's impossible to free space on the target filesystem by
- // deleting the source if the source is an MTD partition. If
+ // deleting the source if the source is a partition. If
// we're ever in a state where we need to do this, fail.
- printf("not enough free space for target but source is MTD\n");
+ printf("not enough free space for target but source "
+ "is partition\n");
return 1;
}
@@ -704,7 +798,8 @@ int applypatch(const char* source_filename,
void* token = NULL;
output = -1;
outname = NULL;
- if (strncmp(target_filename, "MTD:", 4) == 0) {
+ if (strncmp(target_filename, "MTD:", 4) == 0 ||
+ strncmp(target_filename, "EMMC:", 5) == 0) {
// We store the decoded output in memory.
msi.buffer = malloc(target_size);
if (msi.buffer == NULL) {
@@ -780,8 +875,8 @@ int applypatch(const char* source_filename,
}
if (output < 0) {
- // Copy the temp file to the MTD partition.
- if (WriteToMTDPartition(msi.buffer, msi.pos, target_filename) != 0) {
+ // Copy the temp file to the partition.
+ if (WriteToPartition(msi.buffer, msi.pos, target_filename) != 0) {
printf("write of patched data to %s failed\n", target_filename);
return 1;
}
diff --git a/applypatch/applypatch.h b/applypatch/applypatch.h
index 10c01259a..a78c89bfe 100644
--- a/applypatch/applypatch.h
+++ b/applypatch/applypatch.h
@@ -19,6 +19,7 @@
#include <sys/stat.h>
#include "mincrypt/sha.h"
+#include "minelf/Retouch.h"
#include "edify/expr.h"
typedef struct _Patch {
@@ -59,10 +60,12 @@ int applypatch_check(const char* filename,
int num_patches,
char** const patch_sha1_str);
-// Read a file into memory; store it and its associated metadata in
-// *file. Return 0 on success.
-int LoadFileContents(const char* filename, FileContents* file);
+int LoadFileContents(const char* filename, FileContents* file,
+ int retouch_flag);
+int SaveFileContents(const char* filename, FileContents file);
void FreeFileContents(FileContents* file);
+int FindMatchingPatch(uint8_t* sha1, char** const patch_sha1_str,
+ int num_patches);
// bsdiff.c
void ShowBSDiffLicense();
diff --git a/applypatch/main.c b/applypatch/main.c
index 3917f86ed..7025a2e2e 100644
--- a/applypatch/main.c
+++ b/applypatch/main.c
@@ -74,7 +74,7 @@ static int ParsePatchArgs(int argc, char** argv,
(*patches)[i] = NULL;
} else {
FileContents fc;
- if (LoadFileContents(colon, &fc) != 0) {
+ if (LoadFileContents(colon, &fc, RETOUCH_DONT_MASK) != 0) {
goto abort;
}
(*patches)[i] = malloc(sizeof(Value));
diff --git a/bootloader.c b/bootloader.c
index 38b5651bf..1e66c3e26 100644
--- a/bootloader.c
+++ b/bootloader.c
@@ -25,8 +25,6 @@
static const char *CACHE_NAME = "CACHE:";
static const char *MISC_NAME = "MISC:";
-static const int MISC_PAGES = 3; // number of pages to save
-static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page
#ifdef LOG_VERBOSE
static void dump_data(const char *data, int len) {
@@ -41,6 +39,57 @@ static void dump_data(const char *data, int len) {
}
#endif
+#ifdef USE_EXT4
+// Strictly speaking this doesn't have anything to do with ext4; we
+// really just mean "misc is an emmc partition". We should have a
+// more configurable way have describing partitions, filesystems, etc.
+
+static const char* MISC_PARTITION =
+ "/dev/block/platform/sdhci-tegra.3/by-name/misc";
+
+int get_bootloader_message(struct bootloader_message* out) {
+ FILE* f = fopen(MISC_PARTITION, "rb");
+ if (f == NULL) {
+ LOGE("Can't open %s\n(%s)\n", MISC_PARTITION, strerror(errno));
+ return -1;
+ }
+ struct bootloader_message temp;
+ int count = fread(&temp, sizeof(temp), 1, f);
+ if (count != 1) {
+ LOGE("Failed reading %s\n(%s)\n", MISC_PARTITION, strerror(errno));
+ return -1;
+ }
+ if (fclose(f) != 0) {
+ LOGE("Failed closing %s\n(%s)\n", MISC_PARTITION, strerror(errno));
+ return -1;
+ }
+ memcpy(out, &temp, sizeof(temp));
+ return 0;
+}
+
+int set_bootloader_message(const struct bootloader_message* in) {
+ FILE* f = fopen(MISC_PARTITION, "wb");
+ if (f == NULL) {
+ LOGE("Can't open %s\n(%s)\n", MISC_PARTITION, strerror(errno));
+ return -1;
+ }
+ int count = fwrite(in, sizeof(*in), 1, f);
+ if (count != 1) {
+ LOGE("Failed writing %s\n(%s)\n", MISC_PARTITION, strerror(errno));
+ return -1;
+ }
+ if (fclose(f) != 0) {
+ LOGE("Failed closing %s\n(%s)\n", MISC_PARTITION, strerror(errno));
+ return -1;
+ }
+ return 0;
+}
+
+#else // MTD partitions
+
+static const int MISC_PAGES = 3; // number of pages to save
+static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page
+
int get_bootloader_message(struct bootloader_message *out) {
size_t write_size;
const MtdPartition *part = get_root_mtd_partition(MISC_NAME);
@@ -119,3 +168,5 @@ int set_bootloader_message(const struct bootloader_message *in) {
LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : "");
return 0;
}
+
+#endif
diff --git a/common.h b/common.h
index 29b37bb9d..0c250f4fa 100644
--- a/common.h
+++ b/common.h
@@ -73,12 +73,12 @@ void ui_show_indeterminate_progress();
void ui_reset_progress();
#define LOGE(...) ui_print("E:" __VA_ARGS__)
-#define LOGW(...) fprintf(stderr, "W:" __VA_ARGS__)
-#define LOGI(...) fprintf(stderr, "I:" __VA_ARGS__)
+#define LOGW(...) fprintf(stdout, "W:" __VA_ARGS__)
+#define LOGI(...) fprintf(stdout, "I:" __VA_ARGS__)
#if 0
-#define LOGV(...) fprintf(stderr, "V:" __VA_ARGS__)
-#define LOGD(...) fprintf(stderr, "D:" __VA_ARGS__)
+#define LOGV(...) fprintf(stdout, "V:" __VA_ARGS__)
+#define LOGD(...) fprintf(stdout, "D:" __VA_ARGS__)
#else
#define LOGV(...) do {} while (0)
#define LOGD(...) do {} while (0)
diff --git a/default_recovery_ui.c b/default_recovery_ui.c
index ce12787fe..bcba88826 100644
--- a/default_recovery_ui.c
+++ b/default_recovery_ui.c
@@ -24,7 +24,7 @@ char* MENU_HEADERS[] = { "Android system recovery utility",
NULL };
char* MENU_ITEMS[] = { "reboot system now",
- "apply update from sdcard",
+ "apply update from external storage",
"wipe data/factory reset",
"wipe cache partition",
NULL };
diff --git a/install.c b/install.c
index 40f182d77..2619a0cc0 100644
--- a/install.c
+++ b/install.c
@@ -112,7 +112,7 @@ try_update_binary(const char *path, ZipArchive *zip) {
if (pid == 0) {
close(pipefd[0]);
execv(binary, args);
- fprintf(stderr, "E:Can't run %s (%s)\n", binary, strerror(errno));
+ fprintf(stdout, "E:Can't run %s (%s)\n", binary, strerror(errno));
_exit(-1);
}
close(pipefd[1]);
diff --git a/minelf/Android.mk b/minelf/Android.mk
new file mode 100644
index 000000000..0f41ff528
--- /dev/null
+++ b/minelf/Android.mk
@@ -0,0 +1,27 @@
+# Copyright (C) 2009 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ Retouch.c
+
+LOCAL_C_INCLUDES += bootable/recovery
+
+LOCAL_MODULE := libminelf
+
+LOCAL_CFLAGS += -Wall
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/minelf/Retouch.c b/minelf/Retouch.c
new file mode 100644
index 000000000..33809cd6d
--- /dev/null
+++ b/minelf/Retouch.c
@@ -0,0 +1,406 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <strings.h>
+#include "Retouch.h"
+#include "applypatch/applypatch.h"
+
+typedef struct {
+ int32_t mmap_addr;
+ char tag[4]; /* 'P', 'R', 'E', ' ' */
+} prelink_info_t __attribute__((packed));
+
+#define false 0
+#define true 1
+
+static int32_t offs_prev;
+static uint32_t cont_prev;
+
+static void init_compression_state(void) {
+ offs_prev = 0;
+ cont_prev = 0;
+}
+
+// For details on the encoding used for relocation lists, please
+// refer to build/tools/retouch/retouch-prepare.c. The intent is to
+// save space by removing most of the inherent redundancy.
+
+static void decode_bytes(uint8_t *encoded_bytes, int encoded_size,
+ int32_t *dst_offset, uint32_t *dst_contents) {
+ if (encoded_size == 2) {
+ *dst_offset = offs_prev + (((encoded_bytes[0]&0x60)>>5)+1)*4;
+
+ // if the original was negative, we need to 1-pad before applying delta
+ int32_t tmp = (((encoded_bytes[0] & 0x0000001f) << 8) |
+ encoded_bytes[1]);
+ if (tmp & 0x1000) tmp = 0xffffe000 | tmp;
+ *dst_contents = cont_prev + tmp;
+ } else if (encoded_size == 3) {
+ *dst_offset = offs_prev + (((encoded_bytes[0]&0x30)>>4)+1)*4;
+
+ // if the original was negative, we need to 1-pad before applying delta
+ int32_t tmp = (((encoded_bytes[0] & 0x0000000f) << 16) |
+ (encoded_bytes[1] << 8) |
+ encoded_bytes[2]);
+ if (tmp & 0x80000) tmp = 0xfff00000 | tmp;
+ *dst_contents = cont_prev + tmp;
+ } else {
+ *dst_offset =
+ (encoded_bytes[0]<<24) |
+ (encoded_bytes[1]<<16) |
+ (encoded_bytes[2]<<8) |
+ encoded_bytes[3];
+ if (*dst_offset == 0x3fffffff) *dst_offset = -1;
+ *dst_contents =
+ (encoded_bytes[4]<<24) |
+ (encoded_bytes[5]<<16) |
+ (encoded_bytes[6]<<8) |
+ encoded_bytes[7];
+ }
+}
+
+static uint8_t *decode_in_memory(uint8_t *encoded_bytes,
+ int32_t *offset, uint32_t *contents) {
+ int input_size, charIx;
+ uint8_t input[8];
+
+ input[0] = *(encoded_bytes++);
+ if (input[0] & 0x80)
+ input_size = 2;
+ else if (input[0] & 0x40)
+ input_size = 3;
+ else
+ input_size = 8;
+
+ // we already read one byte..
+ charIx = 1;
+ while (charIx < input_size) {
+ input[charIx++] = *(encoded_bytes++);
+ }
+
+ // depends on the decoder state!
+ decode_bytes(input, input_size, offset, contents);
+
+ offs_prev = *offset;
+ cont_prev = *contents;
+
+ return encoded_bytes;
+}
+
+int retouch_mask_data(uint8_t *binary_object,
+ int32_t binary_size,
+ int32_t *desired_offset,
+ int32_t *retouch_offset) {
+ retouch_info_t *r_info;
+ prelink_info_t *p_info;
+
+ int32_t target_offset = 0;
+ if (desired_offset) target_offset = *desired_offset;
+
+ int32_t p_offs = binary_size-sizeof(prelink_info_t); // prelink_info_t
+ int32_t r_offs = p_offs-sizeof(retouch_info_t); // retouch_info_t
+ int32_t b_offs; // retouch data blob
+
+ // If not retouched, we say it was a match. This might get invoked on
+ // non-retouched binaries, so that's why we need to do this.
+ if (retouch_offset != NULL) *retouch_offset = target_offset;
+ if (r_offs < 0) return (desired_offset == NULL) ?
+ RETOUCH_DATA_NOTAPPLICABLE : RETOUCH_DATA_MATCHED;
+ p_info = (prelink_info_t *)(binary_object+p_offs);
+ r_info = (retouch_info_t *)(binary_object+r_offs);
+ if (strncmp(p_info->tag, "PRE ", 4) ||
+ strncmp(r_info->tag, "RETOUCH ", 8))
+ return (desired_offset == NULL) ?
+ RETOUCH_DATA_NOTAPPLICABLE : RETOUCH_DATA_MATCHED;
+
+ b_offs = r_offs-r_info->blob_size;
+ if (b_offs < 0) {
+ printf("negative binary offset: %d = %d - %d\n",
+ b_offs, r_offs, r_info->blob_size);
+ return RETOUCH_DATA_ERROR;
+ }
+ uint8_t *b_ptr = binary_object+b_offs;
+
+ // Retouched: let's go through the work then.
+ int32_t offset_candidate = target_offset;
+ bool offset_set = false, offset_mismatch = false;
+ init_compression_state();
+ while (b_ptr < (uint8_t *)r_info) {
+ int32_t retouch_entry_offset;
+ uint32_t *retouch_entry;
+ uint32_t retouch_original_value;
+
+ b_ptr = decode_in_memory(b_ptr,
+ &retouch_entry_offset,
+ &retouch_original_value);
+ if (retouch_entry_offset < (-1) ||
+ retouch_entry_offset >= b_offs) {
+ printf("bad retouch_entry_offset: %d", retouch_entry_offset);
+ return RETOUCH_DATA_ERROR;
+ }
+
+ // "-1" means this is the value in prelink_info_t, which also gets
+ // randomized.
+ if (retouch_entry_offset == -1)
+ retouch_entry = (uint32_t *)&(p_info->mmap_addr);
+ else
+ retouch_entry = (uint32_t *)(binary_object+retouch_entry_offset);
+
+ if (desired_offset)
+ *retouch_entry = retouch_original_value + target_offset;
+
+ // Infer the randomization shift, compare to previously inferred.
+ int32_t offset_of_this_entry = (int32_t)(*retouch_entry-
+ retouch_original_value);
+ if (!offset_set) {
+ offset_candidate = offset_of_this_entry;
+ offset_set = true;
+ } else {
+ if (offset_candidate != offset_of_this_entry) {
+ offset_mismatch = true;
+ printf("offset is mismatched: %d, this entry is %d,"
+ " original 0x%x @ 0x%x",
+ offset_candidate, offset_of_this_entry,
+ retouch_original_value, retouch_entry_offset);
+ }
+ }
+ }
+ if (b_ptr > (uint8_t *)r_info) {
+ printf("b_ptr went too far: %p, while r_info is %p",
+ b_ptr, r_info);
+ return RETOUCH_DATA_ERROR;
+ }
+
+ if (offset_mismatch) return RETOUCH_DATA_MISMATCHED;
+ if (retouch_offset != NULL) *retouch_offset = offset_candidate;
+ return RETOUCH_DATA_MATCHED;
+}
+
+// On success, _override is set to the offset that was actually applied.
+// This implies that once we randomize to an offset we stick with it.
+// This in turn is necessary in order to guarantee recovery after crash.
+bool retouch_one_library(const char *binary_name,
+ const char *binary_sha1,
+ int32_t retouch_offset,
+ int32_t *retouch_offset_override) {
+ bool success = true;
+ int result;
+
+ FileContents file;
+ file.data = NULL;
+
+ char binary_name_atomic[strlen(binary_name)+10];
+ strcpy(binary_name_atomic, binary_name);
+ strcat(binary_name_atomic, ".atomic");
+
+ // We need a path that exists for calling statfs() later.
+ //
+ // Assume that binary_name (eg "/system/app/Foo.apk") is located
+ // on the same filesystem as its top-level directory ("/system").
+ char target_fs[strlen(binary_name)+1];
+ char* slash = strchr(binary_name+1, '/');
+ if (slash != NULL) {
+ int count = slash - binary_name;
+ strncpy(target_fs, binary_name, count);
+ target_fs[count] = '\0';
+ } else {
+ strcpy(target_fs, binary_name);
+ }
+
+ result = LoadFileContents(binary_name, &file, RETOUCH_DONT_MASK);
+
+ if (result == 0) {
+ // Figure out the *apparent* offset to which this file has been
+ // retouched. If it looks good, we will skip processing (we might
+ // have crashed and during this recovery pass we don't want to
+ // overwrite a valuable saved file in /cache---which would happen
+ // if we blindly retouch everything again). NOTE: This implies
+ // that we might have to override the supplied retouch offset. We
+ // can do the override only once though: everything should match
+ // afterward.
+
+ int32_t inferred_offset;
+ int retouch_probe_result = retouch_mask_data(file.data,
+ file.size,
+ NULL,
+ &inferred_offset);
+
+ if (retouch_probe_result == RETOUCH_DATA_MATCHED) {
+ if ((retouch_offset == inferred_offset) ||
+ ((retouch_offset != 0 && inferred_offset != 0) &&
+ (retouch_offset_override != NULL))) {
+ // This file is OK already and we are allowed to override.
+ // Let's just return the offset override value. It is critical
+ // to skip regardless of override: a broken file might need
+ // recovery down the list and we should not mess up the saved
+ // copy by doing unnecessary retouching.
+ //
+ // NOTE: If retouching was already started with a different
+ // value, we will not be allowed to override. This happens
+ // if on the retouch list there is a patched binary (which is
+ // masked in apply_patch()) before there is a non-patched
+ // binary.
+ if (retouch_offset_override != NULL)
+ *retouch_offset_override = inferred_offset;
+ success = true;
+ goto out;
+ } else {
+ // Retouch to zero (mask the retouching), to make sure that
+ // the SHA-1 check will pass below.
+ int32_t zero = 0;
+ retouch_mask_data(file.data, file.size, &zero, NULL);
+ SHA(file.data, file.size, file.sha1);
+ }
+ }
+
+ if (retouch_probe_result == RETOUCH_DATA_NOTAPPLICABLE) {
+ // In the case of not retouchable, fake it. We do not want
+ // to do the normal processing and overwrite the backup file:
+ // we might be recovering!
+ //
+ // We return a zero override, which tells the caller that we
+ // simply skipped the file.
+ if (retouch_offset_override != NULL)
+ *retouch_offset_override = 0;
+ success = true;
+ goto out;
+ }
+
+ // If we get here, either there was a mismatch in the offset, or
+ // the file has not been processed yet. Continue with normal
+ // processing.
+ }
+
+ if (result != 0 || FindMatchingPatch(file.sha1, &binary_sha1, 1) < 0) {
+ free(file.data);
+ printf("Attempting to recover source from '%s' ...\n",
+ CACHE_TEMP_SOURCE);
+ result = LoadFileContents(CACHE_TEMP_SOURCE, &file, RETOUCH_DO_MASK);
+ if (result != 0 || FindMatchingPatch(file.sha1, &binary_sha1, 1) < 0) {
+ printf(" failed.\n");
+ success = false;
+ goto out;
+ }
+ printf(" succeeded.\n");
+ }
+
+ // Retouch in-memory before worrying about backing up the original.
+ //
+ // Recovery steps will be oblivious to the actual retouch offset used,
+ // so might as well write out the already-retouched copy. Then, in the
+ // usual case, we will just swap the file locally, with no more writes
+ // needed. In the no-free-space case, we will then write the same to the
+ // original location.
+
+ result = retouch_mask_data(file.data, file.size, &retouch_offset, NULL);
+ if (result != RETOUCH_DATA_MATCHED) {
+ success = false;
+ goto out;
+ }
+ if (retouch_offset_override != NULL)
+ *retouch_offset_override = retouch_offset;
+
+ // How much free space do we need?
+ bool enough_space = false;
+ size_t free_space = FreeSpaceForFile(target_fs);
+ // 50% margin when estimating the space needed.
+ enough_space = (free_space > (file.size * 3 / 2));
+
+ // The experts say we have to allow for a retry of the
+ // whole process to avoid filesystem weirdness.
+ int retry = 1;
+ bool made_copy = false;
+ do {
+ // First figure out where to store a copy of the original.
+ // Ideally leave the original itself intact until the
+ // atomic swap. If no room on the same partition, fall back
+ // to the cache partition and remove the original.
+
+ if (!enough_space) {
+ printf("Target is %ldB; free space is %ldB: not enough.\n",
+ (long)file.size, (long)free_space);
+
+ retry = 0;
+ if (MakeFreeSpaceOnCache(file.size) < 0) {
+ printf("Not enough free space on '/cache'.\n");
+ success = false;
+ goto out;
+ }
+ if (SaveFileContents(CACHE_TEMP_SOURCE, file) < 0) {
+ printf("Failed to back up source file.\n");
+ success = false;
+ goto out;
+ }
+ made_copy = true;
+ unlink(binary_name);
+
+ size_t free_space = FreeSpaceForFile(target_fs);
+ printf("(now %ld bytes free for target)\n", (long)free_space);
+ }
+
+ result = SaveFileContents(binary_name_atomic, file);
+ if (result != 0) {
+ // Maybe the filesystem was optimistic: retry.
+ enough_space = false;
+ unlink(binary_name_atomic);
+ printf("Saving the retouched contents failed; retrying.\n");
+ continue;
+ }
+
+ // Succeeded; no need to retry.
+ break;
+ } while (retry-- > 0);
+
+ // Give the .atomic file the same owner, group, and mode of the
+ // original source file.
+ if (chmod(binary_name_atomic, file.st.st_mode) != 0) {
+ printf("chmod of \"%s\" failed: %s\n",
+ binary_name_atomic, strerror(errno));
+ success = false;
+ goto out;
+ }
+ if (chown(binary_name_atomic, file.st.st_uid, file.st.st_gid) != 0) {
+ printf("chown of \"%s\" failed: %s\n",
+ binary_name_atomic,
+ strerror(errno));
+ success = false;
+ goto out;
+ }
+
+ // Finally, rename the .atomic file to replace the target file.
+ if (rename(binary_name_atomic, binary_name) != 0) {
+ printf("rename of .atomic to \"%s\" failed: %s\n",
+ binary_name, strerror(errno));
+ success = false;
+ goto out;
+ }
+
+ // If this run created a copy, and we're here, we can delete it.
+ if (made_copy) unlink(CACHE_TEMP_SOURCE);
+
+ out:
+ // clean up
+ free(file.data);
+ unlink(binary_name_atomic);
+
+ return success;
+}
diff --git a/minelf/Retouch.h b/minelf/Retouch.h
new file mode 100644
index 000000000..048d78e44
--- /dev/null
+++ b/minelf/Retouch.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _MINELF_RETOUCH
+#define _MINELF_RETOUCH
+
+#include <stdbool.h>
+#include <sys/types.h>
+
+typedef struct {
+ char tag[8]; /* "RETOUCH ", not zero-terminated */
+ uint32_t blob_size; /* in bytes, located right before this struct */
+} retouch_info_t __attribute__((packed));
+
+// Retouch a file. Use CACHED_SOURCE_TEMP to store a copy.
+bool retouch_one_library(const char *binary_name,
+ const char *binary_sha1,
+ int32_t retouch_offset,
+ int32_t *retouch_offset_override);
+
+#define RETOUCH_DONT_MASK 0
+#define RETOUCH_DO_MASK 1
+
+#define RETOUCH_DATA_ERROR 0 // This is bad. Should not happen.
+#define RETOUCH_DATA_MATCHED 1 // Up to an uniform random offset.
+#define RETOUCH_DATA_MISMATCHED 2 // Partially randomized, or total mess.
+#define RETOUCH_DATA_NOTAPPLICABLE 3 // Not retouched. Only when inferring.
+
+// Mask retouching in-memory. Used before apply_patch[_check].
+// Also used to determine status of retouching after a crash.
+//
+// If desired_offset is not NULL, then apply retouching instead,
+// and return that in retouch_offset.
+int retouch_mask_data(uint8_t *binary_object,
+ int32_t binary_size,
+ int32_t *desired_offset,
+ int32_t *retouch_offset);
+#endif
diff --git a/recovery.c b/recovery.c
index 30bbe38a1..286f1e5a7 100644
--- a/recovery.c
+++ b/recovery.c
@@ -673,7 +673,7 @@ prompt_and_wait() {
static void
print_property(const char *key, const char *name, void *cookie) {
- fprintf(stderr, "%s=%s\n", key, name);
+ printf("%s=%s\n", key, name);
}
int
@@ -683,7 +683,7 @@ main(int argc, char **argv) {
// If these fail, there's not really anywhere to complain...
freopen(TEMPORARY_LOG_FILE, "a", stdout); setbuf(stdout, NULL);
freopen(TEMPORARY_LOG_FILE, "a", stderr); setbuf(stderr, NULL);
- fprintf(stderr, "Starting recovery on %s", ctime(&start));
+ printf("Starting recovery on %s", ctime(&start));
ui_init();
get_args(&argc, &argv);
@@ -714,14 +714,14 @@ main(int argc, char **argv) {
device_recovery_start();
- fprintf(stderr, "Command:");
+ printf("Command:");
for (arg = 0; arg < argc; arg++) {
- fprintf(stderr, " \"%s\"", argv[arg]);
+ printf(" \"%s\"", argv[arg]);
}
- fprintf(stderr, "\n\n");
+ printf("\n\n");
property_list(print_property, NULL);
- fprintf(stderr, "\n");
+ printf("\n");
int status = INSTALL_SUCCESS;
diff --git a/recovery_ui.h b/recovery_ui.h
index e451bdfa2..77ce7f93d 100644
--- a/recovery_ui.h
+++ b/recovery_ui.h
@@ -66,7 +66,8 @@ int device_wipe_data();
#define SELECT_ITEM -4
#define ITEM_REBOOT 0
-#define ITEM_APPLY_SDCARD 1
+#define ITEM_APPLY_EXT 1
+#define ITEM_APPLY_SDCARD 1 // historical synonym for ITEM_APPLY_EXT
#define ITEM_WIPE_DATA 2
#define ITEM_WIPE_CACHE 3
diff --git a/roots.c b/roots.c
index d5754db3a..5369d2ff2 100644
--- a/roots.c
+++ b/roots.c
@@ -23,6 +23,11 @@
#include "mtdutils/mtdutils.h"
#include "mtdutils/mounts.h"
+
+#ifdef USE_EXT4
+#include "make_ext4fs.h"
+#endif
+
#include "minzip/Zip.h"
#include "roots.h"
#include "common.h"
@@ -46,20 +51,28 @@ static const char g_ramdisk[] = "@\0g_ramdisk";
static RootInfo g_roots[] = {
{ "BOOT:", g_mtd_device, NULL, "boot", NULL, g_raw },
- { "CACHE:", g_mtd_device, NULL, "cache", "/cache", "yaffs2" },
- { "DATA:", g_mtd_device, NULL, "userdata", "/data", "yaffs2" },
- { "MISC:", g_mtd_device, NULL, "misc", NULL, g_raw },
{ "PACKAGE:", NULL, NULL, NULL, NULL, g_package_file },
{ "RECOVERY:", g_mtd_device, NULL, "recovery", "/", g_raw },
- { "SDCARD:", "/dev/block/mmcblk0p1", "/dev/block/mmcblk0", NULL, "/sdcard", "vfat" },
{ "SYSTEM:", g_mtd_device, NULL, "system", "/system", "yaffs2" },
{ "MBM:", g_mtd_device, NULL, "mbm", NULL, g_raw },
{ "TMP:", NULL, NULL, NULL, "/tmp", g_ramdisk },
+
+#ifdef USE_EXT4
+ { "CACHE:", "/dev/block/platform/sdhci-tegra.3/by-name/cache", NULL, NULL,
+ "/cache", "ext4" },
+ { "DATA:", "/dev/block/platform/sdhci-tegra.3/by-name/userdata", NULL, NULL,
+ "/data", "ext4" },
+ { "EXT:", "/dev/block/sda1", NULL, NULL, "/sdcard", "vfat" },
+#else
+ { "CACHE:", g_mtd_device, NULL, "cache", "/cache", "yaffs2" },
+ { "DATA:", g_mtd_device, NULL, "userdata", "/data", "yaffs2" },
+ { "EXT:", "/dev/block/mmcblk0p1", "/dev/block/mmcblk0", NULL, "/sdcard", "vfat" },
+ { "MISC:", g_mtd_device, NULL, "misc", NULL, g_raw },
+#endif
+
};
#define NUM_ROOTS (sizeof(g_roots) / sizeof(g_roots[0]))
-// TODO: for SDCARD:, try /dev/block/mmcblk0 if mmcblk0p1 fails
-
static const RootInfo *
get_root_info_for_path(const char *root_path)
{
@@ -252,7 +265,7 @@ ensure_root_path_mounted(const char *root_path)
mkdir(info->mount_point, 0755); // in case it doesn't already exist
if (mount(info->device, info->mount_point, info->filesystem,
- MS_NOATIME | MS_NODEV | MS_NODIRATIME, "")) {
+ MS_NOATIME | MS_NODEV | MS_NODIRATIME, "")) {
if (info->device2 == NULL) {
LOGE("Can't mount %s\n(%s)\n", info->device, strerror(errno));
return -1;
@@ -368,7 +381,23 @@ format_root_device(const char *root)
}
}
}
+
+#ifdef USE_EXT4
+ if (strcmp(info->filesystem, "ext4") == 0) {
+ LOGW("starting to reformat ext4\n");
+ reset_ext4fs_info();
+ int result = make_ext4fs(info->device, NULL, NULL, 0, 0, 0);
+ LOGW("finished reformat ext4: result = %d\n", result);
+ if (result != 0) {
+ LOGW("make_ext4fs failed: %d\n", result);
+ return -1;
+ }
+ return 0;
+ }
+#endif
+
//TODO: handle other device types (sdcard, etc.)
- LOGW("format_root_device: can't handle non-mtd device \"%s\"\n", root);
+
+ LOGW("format_root_device: unknown device \"%s\"\n", root);
return -1;
}
diff --git a/ui.c b/ui.c
index 01c37c079..84a9b85c2 100644
--- a/ui.c
+++ b/ui.c
@@ -29,7 +29,7 @@
#include "minui/minui.h"
#include "recovery_ui.h"
-#define MAX_COLS 64
+#define MAX_COLS 96
#define MAX_ROWS 32
#define CHAR_WIDTH 10
@@ -404,7 +404,7 @@ void ui_print(const char *fmt, ...)
vsnprintf(buf, 256, fmt, ap);
va_end(ap);
- fputs(buf, stderr);
+ fputs(buf, stdout);
// This can get called before ui_init(), so be careful.
pthread_mutex_lock(&gUpdateMutex);
diff --git a/updater/Android.mk b/updater/Android.mk
index d4a4e332d..e3d62bcbe 100644
--- a/updater/Android.mk
+++ b/updater/Android.mk
@@ -18,9 +18,16 @@ LOCAL_MODULE_TAGS := eng
LOCAL_SRC_FILES := $(updater_src_files)
-LOCAL_STATIC_LIBRARIES := $(TARGET_RECOVERY_UPDATER_LIBS) $(TARGET_RECOVERY_UPDATER_EXTRA_LIBS)
+ifeq ($(TARGET_USERIMAGES_USE_EXT4), true)
+LOCAL_CFLAGS += -DUSE_EXT4
+LOCAL_C_INCLUDES += system/extras/ext4_utils
+LOCAL_STATIC_LIBRARIES += libext4_utils libz
+endif
+
+LOCAL_STATIC_LIBRARIES += $(TARGET_RECOVERY_UPDATER_LIBS) $(TARGET_RECOVERY_UPDATER_EXTRA_LIBS)
LOCAL_STATIC_LIBRARIES += libapplypatch libedify libmtdutils libminzip libz
LOCAL_STATIC_LIBRARIES += libmincrypt libbz
+LOCAL_STATIC_LIBRARIES += libminelf
LOCAL_STATIC_LIBRARIES += libcutils libstdc++ libc
LOCAL_C_INCLUDES += $(LOCAL_PATH)/..
@@ -45,7 +52,7 @@ inc := $(call intermediates-dir-for,PACKAGING,updater_extensions)/register.inc
junk := $(shell mkdir -p $(dir $(inc));\
echo $(TARGET_RECOVERY_UPDATER_LIBS) > $(inc).temp;\
- diff -q $(inc).temp $(inc).list || cp -f $(inc).temp $(inc).list)
+ diff -q $(inc).temp $(inc).list 2>/dev/null || cp -f $(inc).temp $(inc).list)
$(inc) : libs := $(TARGET_RECOVERY_UPDATER_LIBS)
$(inc) : $(inc).list
diff --git a/updater/install.c b/updater/install.c
index e869134be..685b97906 100644
--- a/updater/install.c
+++ b/updater/install.c
@@ -25,35 +25,49 @@
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
#include "cutils/misc.h"
#include "cutils/properties.h"
#include "edify/expr.h"
#include "mincrypt/sha.h"
#include "minzip/DirUtil.h"
+#include "minelf/Retouch.h"
#include "mtdutils/mounts.h"
#include "mtdutils/mtdutils.h"
#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 +81,7 @@ Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
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 +91,7 @@ Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
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 +99,7 @@ Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
}
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 +110,8 @@ Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
}
done:
- free(type);
+ free(fs_type);
+ free(partition_type);
free(location);
if (result != mount_point) free(mount_point);
return StringValue(result);
@@ -162,22 +177,29 @@ done:
}
-// 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 +207,7 @@ Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
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 +234,26 @@ Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
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, 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);
}
@@ -396,6 +432,121 @@ Value* PackageExtractFileFn(const char* name, State* state,
}
+// retouch_binaries(lib1, lib2, ...)
+Value* RetouchBinariesFn(const char* name, State* state,
+ int argc, Expr* argv[]) {
+ UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
+
+ char **retouch_entries = ReadVarArgs(state, argc, argv);
+ if (retouch_entries == NULL) {
+ return StringValue(strdup("t"));
+ }
+
+ // some randomness from the clock
+ int32_t override_base;
+ bool override_set = false;
+ int32_t random_base = time(NULL) % 1024;
+ // some more randomness from /dev/random
+ FILE *f_random = fopen("/dev/random", "rb");
+ uint16_t random_bits = 0;
+ if (f_random != NULL) {
+ fread(&random_bits, 2, 1, f_random);
+ random_bits = random_bits % 1024;
+ fclose(f_random);
+ }
+ random_base = (random_base + random_bits) % 1024;
+ fprintf(ui->cmd_pipe, "ui_print Random offset: 0x%x\n", random_base);
+ fprintf(ui->cmd_pipe, "ui_print\n");
+
+ // make sure we never randomize to zero; this let's us look at a file
+ // and know for sure whether it has been processed; important in the
+ // crash recovery process
+ if (random_base == 0) random_base = 1;
+ // make sure our randomization is page-aligned
+ random_base *= -0x1000;
+ override_base = random_base;
+
+ int i = 0;
+ bool success = true;
+ while (i < (argc - 1)) {
+ success = success && retouch_one_library(retouch_entries[i],
+ retouch_entries[i+1],
+ random_base,
+ override_set ?
+ NULL :
+ &override_base);
+ if (!success)
+ ErrorAbort(state, "Failed to retouch '%s'.", retouch_entries[i]);
+
+ free(retouch_entries[i]);
+ free(retouch_entries[i+1]);
+ i += 2;
+
+ if (success && override_base != 0) {
+ random_base = override_base;
+ override_set = true;
+ }
+ }
+ if (i < argc) {
+ free(retouch_entries[i]);
+ success = false;
+ }
+ free(retouch_entries);
+
+ if (!success) {
+ Value* v = malloc(sizeof(Value));
+ v->type = VAL_STRING;
+ v->data = NULL;
+ v->size = -1;
+ return v;
+ }
+ return StringValue(strdup("t"));
+}
+
+
+// undo_retouch_binaries(lib1, lib2, ...)
+Value* UndoRetouchBinariesFn(const char* name, State* state,
+ int argc, Expr* argv[]) {
+ UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
+
+ char **retouch_entries = ReadVarArgs(state, argc, argv);
+ if (retouch_entries == NULL) {
+ return StringValue(strdup("t"));
+ }
+
+ int i = 0;
+ bool success = true;
+ int32_t override_base;
+ while (i < (argc-1)) {
+ success = success && retouch_one_library(retouch_entries[i],
+ retouch_entries[i+1],
+ 0 /* undo => offset==0 */,
+ NULL);
+ if (!success)
+ ErrorAbort(state, "Failed to unretouch '%s'.",
+ retouch_entries[i]);
+
+ free(retouch_entries[i]);
+ free(retouch_entries[i+1]);
+ i += 2;
+ }
+ if (i < argc) {
+ free(retouch_entries[i]);
+ success = false;
+ }
+ free(retouch_entries);
+
+ if (!success) {
+ Value* v = malloc(sizeof(Value));
+ v->type = VAL_STRING;
+ v->data = NULL;
+ v->size = -1;
+ return v;
+ }
+ return StringValue(strdup("t"));
+}
+
+
// symlink target src1 src2 ...
// unlinks any previously existing src1, src2, etc before creating symlinks.
Value* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -974,7 +1125,7 @@ Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) {
return args[i];
}
-// Read a local file and return its contents (the char* returned
+// Read a local file and return its contents (the Value* returned
// is actually a FileContents*).
Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc != 1) {
@@ -987,7 +1138,7 @@ Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) {
v->type = VAL_BLOB;
FileContents fc;
- if (LoadFileContents(filename, &fc) != 0) {
+ if (LoadFileContents(filename, &fc, RETOUCH_DONT_MASK) != 0) {
ErrorAbort(state, "%s() loading \"%s\" failed: %s",
name, filename, strerror(errno));
free(filename);
@@ -1014,6 +1165,8 @@ void RegisterInstallFunctions() {
RegisterFunction("delete_recursive", DeleteFn);
RegisterFunction("package_extract_dir", PackageExtractDirFn);
RegisterFunction("package_extract_file", PackageExtractFileFn);
+ RegisterFunction("retouch_binaries", RetouchBinariesFn);
+ RegisterFunction("undo_retouch_binaries", UndoRetouchBinariesFn);
RegisterFunction("symlink", SymlinkFn);
RegisterFunction("set_perm", SetPermFn);
RegisterFunction("set_perm_recursive", SetPermFn);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 20:24:04 +0100