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-rw-r--r--Android.mk22
-rw-r--r--applypatch/Android.mk2
-rw-r--r--applypatch/applypatch.cpp308
-rw-r--r--applypatch/main.cpp8
-rw-r--r--bootloader.cpp89
-rw-r--r--install.cpp2
-rw-r--r--mounts.cpp89
-rw-r--r--mounts.h (renamed from mtdutils/mounts.h)25
-rw-r--r--mtdutils/Android.mk20
-rw-r--r--mtdutils/flash_image.c143
-rw-r--r--mtdutils/mounts.c161
-rw-r--r--mtdutils/mtdutils.c561
-rw-r--r--mtdutils/mtdutils.h62
-rw-r--r--roots.cpp67
-rw-r--r--updater/Android.mk5
-rw-r--r--updater/install.cpp168
16 files changed, 242 insertions, 1490 deletions
diff --git a/Android.mk b/Android.mk
index d21c18346..2034d604f 100644
--- a/Android.mk
+++ b/Android.mk
@@ -17,15 +17,23 @@ LOCAL_PATH := $(call my-dir)
# libfusesideload (static library)
# ===============================
include $(CLEAR_VARS)
-
LOCAL_SRC_FILES := fuse_sideload.cpp
LOCAL_CLANG := true
-LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
+LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter -Werror
LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
LOCAL_MODULE := libfusesideload
LOCAL_STATIC_LIBRARIES := libcutils libc libcrypto_static
include $(BUILD_STATIC_LIBRARY)
+# libmounts (static library)
+# ===============================
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := mounts.cpp
+LOCAL_CLANG := true
+LOCAL_CFLAGS := -Wall -Wno-unused-parameter -Werror
+LOCAL_MODULE := libmounts
+include $(BUILD_STATIC_LIBRARY)
+
# recovery (static executable)
# ===============================
include $(CLEAR_VARS)
@@ -71,8 +79,8 @@ LOCAL_STATIC_LIBRARIES := \
libext4_utils_static \
libsparse_static \
libminzip \
+ libmounts \
libz \
- libmtdutils \
libminadbd \
libfusesideload \
libminui \
@@ -90,11 +98,8 @@ LOCAL_STATIC_LIBRARIES := \
LOCAL_HAL_STATIC_LIBRARIES := libhealthd
-ifeq ($(TARGET_USERIMAGES_USE_EXT4), true)
- LOCAL_CFLAGS += -DUSE_EXT4
- LOCAL_C_INCLUDES += system/extras/ext4_utils
- LOCAL_STATIC_LIBRARIES += libext4_utils_static libz
-endif
+LOCAL_C_INCLUDES += system/extras/ext4_utils
+LOCAL_STATIC_LIBRARIES += libext4_utils_static libz
ifeq ($(AB_OTA_UPDATER),true)
LOCAL_CFLAGS += -DAB_OTA_UPDATER=1
@@ -150,7 +155,6 @@ include $(BUILD_STATIC_LIBRARY)
include $(LOCAL_PATH)/minui/Android.mk \
$(LOCAL_PATH)/minzip/Android.mk \
$(LOCAL_PATH)/minadbd/Android.mk \
- $(LOCAL_PATH)/mtdutils/Android.mk \
$(LOCAL_PATH)/tests/Android.mk \
$(LOCAL_PATH)/tools/Android.mk \
$(LOCAL_PATH)/edify/Android.mk \
diff --git a/applypatch/Android.mk b/applypatch/Android.mk
index a15ac0280..48efe340e 100644
--- a/applypatch/Android.mk
+++ b/applypatch/Android.mk
@@ -32,7 +32,6 @@ LOCAL_C_INCLUDES += \
LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
LOCAL_STATIC_LIBRARIES += \
libotafault \
- libmtdutils \
libbase \
libcrypto_static \
libbz \
@@ -79,7 +78,6 @@ LOCAL_STATIC_LIBRARIES += \
libedify \
libotafault \
libminzip \
- libmtdutils \
libcrypto_static \
libbz
LOCAL_SHARED_LIBRARIES += libz libcutils libc
diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index 270fde5c4..02a3c6e41 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -32,7 +32,6 @@
#include "openssl/sha.h"
#include "applypatch/applypatch.h"
-#include "mtdutils/mtdutils.h"
#include "edify/expr.h"
#include "ota_io.h"
#include "print_sha1.h"
@@ -49,17 +48,14 @@ static int GenerateTarget(FileContents* source_file,
size_t target_size,
const Value* bonus_data);
-static bool mtd_partitions_scanned = false;
-
// Read a file into memory; store the file contents and associated
// metadata in *file.
//
// Return 0 on success.
int LoadFileContents(const char* filename, FileContents* file) {
- // A special 'filename' beginning with "MTD:" or "EMMC:" means to
+ // A special 'filename' beginning with "EMMC:" means to
// load the contents of a partition.
- if (strncmp(filename, "MTD:", 4) == 0 ||
- strncmp(filename, "EMMC:", 5) == 0) {
+ if (strncmp(filename, "EMMC:", 5) == 0) {
return LoadPartitionContents(filename, file);
}
@@ -87,10 +83,9 @@ int LoadFileContents(const char* filename, FileContents* file) {
return 0;
}
-// Load the contents of an MTD or EMMC partition into the provided
+// Load the contents of an 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>:..." (or
-// "EMMC:<partition_device>:..."). The smallest size_n bytes for
+// "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.
@@ -102,8 +97,6 @@ int LoadFileContents(const char* filename, FileContents* file) {
// "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) {
std::string copy(filename);
std::vector<std::string> pieces = android::base::Split(copy, ":");
@@ -112,12 +105,7 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
return -1;
}
- enum PartitionType type;
- if (pieces[0] == "MTD") {
- type = MTD;
- } else if (pieces[0] == "EMMC") {
- type = EMMC;
- } else {
+ if (pieces[0] != "EMMC") {
printf("LoadPartitionContents called with bad filename (%s)\n", filename);
return -1;
}
@@ -145,36 +133,10 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
}
);
- MtdReadContext* ctx = NULL;
- FILE* dev = NULL;
-
- switch (type) {
- case MTD: {
- if (!mtd_partitions_scanned) {
- mtd_scan_partitions();
- mtd_partitions_scanned = true;
- }
-
- 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 = ota_fopen(partition, "rb");
- if (dev == NULL) {
- printf("failed to open emmc partition \"%s\": %s\n", partition, strerror(errno));
- return -1;
- }
+ FILE* dev = ota_fopen(partition, "rb");
+ if (dev == NULL) {
+ printf("failed to open emmc partition \"%s\": %s\n", partition, strerror(errno));
+ return -1;
}
SHA_CTX sha_ctx;
@@ -192,16 +154,7 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
// we're trying the possibilities in order of increasing size).
size_t next = size[index[i]] - data_size;
if (next > 0) {
- size_t read = 0;
- switch (type) {
- case MTD:
- read = mtd_read_data(ctx, p, next);
- break;
-
- case EMMC:
- read = ota_fread(p, 1, next, dev);
- break;
- }
+ size_t read = ota_fread(p, 1, next, dev);
if (next != read) {
printf("short read (%zu bytes of %zu) for partition \"%s\"\n",
read, next, partition);
@@ -234,16 +187,7 @@ static int LoadPartitionContents(const char* filename, FileContents* file) {
}
}
- switch (type) {
- case MTD:
- mtd_read_close(ctx);
- break;
-
- case EMMC:
- ota_fclose(dev);
- break;
- }
-
+ ota_fclose(dev);
if (!found) {
// Ran off the end of the list of (size,sha1) pairs without finding a match.
@@ -302,7 +246,7 @@ int SaveFileContents(const char* filename, const FileContents* file) {
}
// Write a memory buffer to 'target' partition, a string of the form
-// "MTD:<partition>[:...]" or "EMMC:<partition_device>[:...]". The target name
+// "EMMC:<partition_device>[:...]". The target name
// might contain multiple colons, but WriteToPartition() only uses the first
// two and ignores the rest. Return 0 on success.
int WriteToPartition(const unsigned char* data, size_t len, const char* target) {
@@ -314,165 +258,117 @@ int WriteToPartition(const unsigned char* data, size_t len, const char* target)
return -1;
}
- enum PartitionType type;
- if (pieces[0] == "MTD") {
- type = MTD;
- } else if (pieces[0] == "EMMC") {
- type = EMMC;
- } else {
+ if (pieces[0] != "EMMC") {
printf("WriteToPartition called with bad target (%s)\n", target);
return -1;
}
const char* partition = pieces[1].c_str();
- switch (type) {
- case MTD: {
- if (!mtd_partitions_scanned) {
- mtd_scan_partitions();
- mtd_partitions_scanned = true;
- }
-
- const MtdPartition* mtd = mtd_find_partition_by_name(partition);
- if (mtd == NULL) {
- printf("mtd partition \"%s\" not found for writing\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 start = 0;
+ bool success = false;
+ int fd = ota_open(partition, O_RDWR | O_SYNC);
+ if (fd < 0) {
+ printf("failed to open %s: %s\n", partition, strerror(errno));
+ return -1;
+ }
- size_t written = mtd_write_data(ctx, reinterpret_cast<const char*>(data), len);
- if (written != len) {
- printf("only wrote %zu of %zu bytes to MTD %s\n", written, len, partition);
- mtd_write_close(ctx);
- return -1;
- }
+ for (size_t attempt = 0; attempt < 2; ++attempt) {
+ if (TEMP_FAILURE_RETRY(lseek(fd, start, SEEK_SET)) == -1) {
+ printf("failed seek on %s: %s\n", partition, strerror(errno));
+ return -1;
+ }
+ while (start < len) {
+ size_t to_write = len - start;
+ if (to_write > 1<<20) to_write = 1<<20;
- if (mtd_erase_blocks(ctx, -1) < 0) {
- printf("error finishing mtd write of %s\n", partition);
- mtd_write_close(ctx);
+ ssize_t written = TEMP_FAILURE_RETRY(ota_write(fd, data+start, to_write));
+ if (written == -1) {
+ printf("failed write writing to %s: %s\n", partition, strerror(errno));
return -1;
}
+ start += written;
+ }
+ if (ota_fsync(fd) != 0) {
+ printf("failed to sync to %s (%s)\n", partition, strerror(errno));
+ return -1;
+ }
+ if (ota_close(fd) != 0) {
+ printf("failed to close %s (%s)\n", partition, strerror(errno));
+ return -1;
+ }
+ fd = ota_open(partition, O_RDONLY);
+ if (fd < 0) {
+ printf("failed to reopen %s for verify (%s)\n", partition, strerror(errno));
+ return -1;
+ }
- if (mtd_write_close(ctx)) {
- printf("error closing mtd write of %s\n", partition);
- return -1;
- }
- break;
+ // Drop caches so our subsequent verification read
+ // won't just be reading the cache.
+ sync();
+ int dc = ota_open("/proc/sys/vm/drop_caches", O_WRONLY);
+ if (TEMP_FAILURE_RETRY(ota_write(dc, "3\n", 2)) == -1) {
+ printf("write to /proc/sys/vm/drop_caches failed: %s\n", strerror(errno));
+ } else {
+ printf(" caches dropped\n");
}
+ ota_close(dc);
+ sleep(1);
- case EMMC: {
- size_t start = 0;
- bool success = false;
- int fd = ota_open(partition, O_RDWR | O_SYNC);
- if (fd < 0) {
- printf("failed to open %s: %s\n", partition, strerror(errno));
- return -1;
+ // verify
+ if (TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_SET)) == -1) {
+ printf("failed to seek back to beginning of %s: %s\n",
+ partition, strerror(errno));
+ return -1;
+ }
+ unsigned char buffer[4096];
+ start = len;
+ for (size_t p = 0; p < len; p += sizeof(buffer)) {
+ size_t to_read = len - p;
+ if (to_read > sizeof(buffer)) {
+ to_read = sizeof(buffer);
}
- for (size_t attempt = 0; attempt < 2; ++attempt) {
- if (TEMP_FAILURE_RETRY(lseek(fd, start, SEEK_SET)) == -1) {
- printf("failed seek on %s: %s\n", partition, strerror(errno));
+ size_t so_far = 0;
+ while (so_far < to_read) {
+ ssize_t read_count =
+ TEMP_FAILURE_RETRY(ota_read(fd, buffer+so_far, to_read-so_far));
+ if (read_count == -1) {
+ printf("verify read error %s at %zu: %s\n",
+ partition, p, strerror(errno));
return -1;
}
- while (start < len) {
- size_t to_write = len - start;
- if (to_write > 1<<20) to_write = 1<<20;
-
- ssize_t written = TEMP_FAILURE_RETRY(ota_write(fd, data+start, to_write));
- if (written == -1) {
- printf("failed write writing to %s: %s\n", partition, strerror(errno));
- return -1;
- }
- start += written;
- }
- if (ota_fsync(fd) != 0) {
- printf("failed to sync to %s (%s)\n", partition, strerror(errno));
- return -1;
- }
- if (ota_close(fd) != 0) {
- printf("failed to close %s (%s)\n", partition, strerror(errno));
- return -1;
- }
- fd = ota_open(partition, O_RDONLY);
- if (fd < 0) {
- printf("failed to reopen %s for verify (%s)\n", partition, strerror(errno));
- return -1;
- }
-
- // Drop caches so our subsequent verification read
- // won't just be reading the cache.
- sync();
- int dc = ota_open("/proc/sys/vm/drop_caches", O_WRONLY);
- if (TEMP_FAILURE_RETRY(ota_write(dc, "3\n", 2)) == -1) {
- printf("write to /proc/sys/vm/drop_caches failed: %s\n", strerror(errno));
- } else {
- printf(" caches dropped\n");
- }
- ota_close(dc);
- sleep(1);
-
- // verify
- if (TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_SET)) == -1) {
- printf("failed to seek back to beginning of %s: %s\n",
- partition, strerror(errno));
- return -1;
- }
- unsigned char buffer[4096];
- start = len;
- for (size_t p = 0; p < len; p += sizeof(buffer)) {
- size_t to_read = len - p;
- if (to_read > sizeof(buffer)) {
- to_read = sizeof(buffer);
- }
-
- size_t so_far = 0;
- while (so_far < to_read) {
- ssize_t read_count =
- TEMP_FAILURE_RETRY(ota_read(fd, buffer+so_far, to_read-so_far));
- if (read_count == -1) {
- printf("verify read error %s at %zu: %s\n",
- partition, p, strerror(errno));
- return -1;
- }
- if (static_cast<size_t>(read_count) < to_read) {
- printf("short verify read %s at %zu: %zd %zu %s\n",
- partition, p, read_count, to_read, strerror(errno));
- }
- so_far += read_count;
- }
-
- if (memcmp(buffer, data+p, to_read) != 0) {
- printf("verification failed starting at %zu\n", p);
- start = p;
- break;
- }
- }
-
- if (start == len) {
- printf("verification read succeeded (attempt %zu)\n", attempt+1);
- success = true;
- break;
+ if (static_cast<size_t>(read_count) < to_read) {
+ printf("short verify read %s at %zu: %zd %zu %s\n",
+ partition, p, read_count, to_read, strerror(errno));
}
+ so_far += read_count;
}
- if (!success) {
- printf("failed to verify after all attempts\n");
- return -1;
+ if (memcmp(buffer, data+p, to_read) != 0) {
+ printf("verification failed starting at %zu\n", p);
+ start = p;
+ break;
}
+ }
- if (ota_close(fd) != 0) {
- printf("error closing %s (%s)\n", partition, strerror(errno));
- return -1;
- }
- sync();
+ if (start == len) {
+ printf("verification read succeeded (attempt %zu)\n", attempt+1);
+ success = true;
break;
}
}
+ if (!success) {
+ printf("failed to verify after all attempts\n");
+ return -1;
+ }
+
+ if (ota_close(fd) != 0) {
+ printf("error closing %s (%s)\n", partition, strerror(errno));
+ return -1;
+ }
+ sync();
+
return 0;
}
@@ -729,7 +625,7 @@ int applypatch_flash(const char* source_filename, const char* target_filename,
std::string target_str(target_filename);
std::vector<std::string> pieces = android::base::Split(target_str, ":");
- if (pieces.size() != 2 || (pieces[0] != "MTD" && pieces[0] != "EMMC")) {
+ if (pieces.size() != 2 || pieces[0] != "EMMC") {
printf("invalid target name \"%s\"", target_filename);
return 1;
}
@@ -778,8 +674,7 @@ static int GenerateTarget(FileContents* source_file,
FileContents* source_to_use;
int made_copy = 0;
- bool target_is_partition = (strncmp(target_filename, "MTD:", 4) == 0 ||
- strncmp(target_filename, "EMMC:", 5) == 0);
+ bool target_is_partition = (strncmp(target_filename, "EMMC:", 5) == 0);
const std::string tmp_target_filename = std::string(target_filename) + ".patch";
// assume that target_filename (eg "/system/app/Foo.apk") is located
@@ -860,8 +755,7 @@ static int GenerateTarget(FileContents* source_file,
// copy the source file to cache, then delete it from the original
// location.
- if (strncmp(source_filename, "MTD:", 4) == 0 ||
- strncmp(source_filename, "EMMC:", 5) == 0) {
+ if (strncmp(source_filename, "EMMC:", 5) == 0) {
// It's impossible to free space on the target filesystem by
// deleting the source if the source is a partition. If
// we're ever in a state where we need to do this, fail.
diff --git a/applypatch/main.cpp b/applypatch/main.cpp
index 0ff8cbf9a..1968ae48f 100644
--- a/applypatch/main.cpp
+++ b/applypatch/main.cpp
@@ -160,9 +160,9 @@ static int PatchMode(int argc, char** argv) {
// - otherwise, or if any error is encountered, exits with non-zero
// status.
//
-// <src-file> (or <file> in check mode) may refer to an MTD partition
+// <src-file> (or <file> in check mode) may refer to an EMMC partition
// to read the source data. See the comments for the
-// LoadMTDContents() function above for the format of such a filename.
+// LoadPartitionContents() function for the format of such a filename.
int main(int argc, char** argv) {
if (argc < 2) {
@@ -175,8 +175,8 @@ int main(int argc, char** argv) {
" or %s -l\n"
"\n"
"Filenames may be of the form\n"
- " MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...\n"
- "to specify reading from or writing to an MTD partition.\n\n",
+ " EMMC:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...\n"
+ "to specify reading from or writing to an EMMC partition.\n\n",
argv[0], argv[0], argv[0], argv[0]);
return 2;
}
diff --git a/bootloader.cpp b/bootloader.cpp
index a32f8b4c6..783f56ea8 100644
--- a/bootloader.cpp
+++ b/bootloader.cpp
@@ -27,12 +27,9 @@
#include "bootloader.h"
#include "common.h"
-#include "mtdutils/mtdutils.h"
#include "roots.h"
#include <android-base/unique_fd.h>
-static int get_bootloader_message_mtd(bootloader_message* out, const Volume* v);
-static int set_bootloader_message_mtd(const bootloader_message* in, const Volume* v);
static int get_bootloader_message_block(bootloader_message* out, const Volume* v);
static int set_bootloader_message_block(const bootloader_message* in, const Volume* v);
@@ -42,9 +39,7 @@ int get_bootloader_message(bootloader_message* out) {
LOGE("Cannot load volume /misc!\n");
return -1;
}
- if (strcmp(v->fs_type, "mtd") == 0) {
- return get_bootloader_message_mtd(out, v);
- } else if (strcmp(v->fs_type, "emmc") == 0) {
+ if (strcmp(v->fs_type, "emmc") == 0) {
return get_bootloader_message_block(out, v);
}
LOGE("unknown misc partition fs_type \"%s\"\n", v->fs_type);
@@ -57,93 +52,13 @@ int set_bootloader_message(const bootloader_message* in) {
LOGE("Cannot load volume /misc!\n");
return -1;
}
- if (strcmp(v->fs_type, "mtd") == 0) {
- return set_bootloader_message_mtd(in, v);
- } else if (strcmp(v->fs_type, "emmc") == 0) {
+ if (strcmp(v->fs_type, "emmc") == 0) {
return set_bootloader_message_block(in, v);
}
LOGE("unknown misc partition fs_type \"%s\"\n", v->fs_type);
return -1;
}
-// ------------------------------
-// for misc partitions on MTD
-// ------------------------------
-
-static const int MISC_PAGES = 3; // number of pages to save
-static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page
-
-static int get_bootloader_message_mtd(bootloader_message* out,
- const Volume* v) {
- size_t write_size;
- mtd_scan_partitions();
- const MtdPartition* part = mtd_find_partition_by_name(v->blk_device);
- if (part == nullptr || mtd_partition_info(part, nullptr, nullptr, &write_size)) {
- LOGE("failed to find \"%s\"\n", v->blk_device);
- return -1;
- }
-
- MtdReadContext* read = mtd_read_partition(part);
- if (read == nullptr) {
- LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno));
- return -1;
- }
-
- const ssize_t size = write_size * MISC_PAGES;
- char data[size];
- ssize_t r = mtd_read_data(read, data, size);
- if (r != size) LOGE("failed to read \"%s\": %s\n", v->blk_device, strerror(errno));
- mtd_read_close(read);
- if (r != size) return -1;
-
- memcpy(out, &data[write_size * MISC_COMMAND_PAGE], sizeof(*out));
- return 0;
-}
-static int set_bootloader_message_mtd(const bootloader_message* in,
- const Volume* v) {
- size_t write_size;
- mtd_scan_partitions();
- const MtdPartition* part = mtd_find_partition_by_name(v->blk_device);
- if (part == nullptr || mtd_partition_info(part, nullptr, nullptr, &write_size)) {
- LOGE("failed to find \"%s\"\n", v->blk_device);
- return -1;
- }
-
- MtdReadContext* read = mtd_read_partition(part);
- if (read == nullptr) {
- LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno));
- return -1;
- }
-
- ssize_t size = write_size * MISC_PAGES;
- char data[size];
- ssize_t r = mtd_read_data(read, data, size);
- if (r != size) LOGE("failed to read \"%s\": %s\n", v->blk_device, strerror(errno));
- mtd_read_close(read);
- if (r != size) return -1;
-
- memcpy(&data[write_size * MISC_COMMAND_PAGE], in, sizeof(*in));
-
- MtdWriteContext* write = mtd_write_partition(part);
- if (write == nullptr) {
- LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno));
- return -1;
- }
- if (mtd_write_data(write, data, size) != size) {
- LOGE("failed to write \"%s\": %s\n", v->blk_device, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
- if (mtd_write_close(write)) {
- LOGE("failed to finish \"%s\": %s\n", v->blk_device, strerror(errno));
- return -1;
- }
-
- LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : "");
- return 0;
-}
-
-
// ------------------------------------
// for misc partitions on block devices
// ------------------------------------
diff --git a/install.cpp b/install.cpp
index faab34fbb..3d0729064 100644
--- a/install.cpp
+++ b/install.cpp
@@ -37,8 +37,6 @@
#include "minui/minui.h"
#include "minzip/SysUtil.h"
#include "minzip/Zip.h"
-#include "mtdutils/mounts.h"
-#include "mtdutils/mtdutils.h"
#include "roots.h"
#include "ui.h"
#include "verifier.h"
diff --git a/mounts.cpp b/mounts.cpp
new file mode 100644
index 000000000..f23376b06
--- /dev/null
+++ b/mounts.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2007 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 "mounts.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mntent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mount.h>
+
+#include <string>
+#include <vector>
+
+struct MountedVolume {
+ std::string device;
+ std::string mount_point;
+ std::string filesystem;
+ std::string flags;
+};
+
+std::vector<MountedVolume*> g_mounts_state;
+
+bool scan_mounted_volumes() {
+ for (size_t i = 0; i < g_mounts_state.size(); ++i) {
+ delete g_mounts_state[i];
+ }
+ g_mounts_state.clear();
+
+ // Open and read mount table entries.
+ FILE* fp = setmntent("/proc/mounts", "re");
+ if (fp == NULL) {
+ return false;
+ }
+ mntent* e;
+ while ((e = getmntent(fp)) != NULL) {
+ MountedVolume* v = new MountedVolume;
+ v->device = e->mnt_fsname;
+ v->mount_point = e->mnt_dir;
+ v->filesystem = e->mnt_type;
+ v->flags = e->mnt_opts;
+ g_mounts_state.push_back(v);
+ }
+ endmntent(fp);
+ return true;
+}
+
+MountedVolume* find_mounted_volume_by_device(const char* device) {
+ for (size_t i = 0; i < g_mounts_state.size(); ++i) {
+ if (g_mounts_state[i]->device == device) return g_mounts_state[i];
+ }
+ return nullptr;
+}
+
+MountedVolume* find_mounted_volume_by_mount_point(const char* mount_point) {
+ for (size_t i = 0; i < g_mounts_state.size(); ++i) {
+ if (g_mounts_state[i]->mount_point == mount_point) return g_mounts_state[i];
+ }
+ return nullptr;
+}
+
+int unmount_mounted_volume(MountedVolume* volume) {
+ // Intentionally pass the empty string to umount if the caller tries
+ // to unmount a volume they already unmounted using this
+ // function.
+ std::string mount_point = volume->mount_point;
+ volume->mount_point.clear();
+ return umount(mount_point.c_str());
+}
+
+int remount_read_only(MountedVolume* volume) {
+ return mount(volume->device.c_str(), volume->mount_point.c_str(), volume->filesystem.c_str(),
+ MS_NOATIME | MS_NODEV | MS_NODIRATIME | MS_RDONLY | MS_REMOUNT, 0);
+}
diff --git a/mtdutils/mounts.h b/mounts.h
index d721355b8..1b7670329 100644
--- a/mtdutils/mounts.h
+++ b/mounts.h
@@ -14,28 +14,19 @@
* limitations under the License.
*/
-#ifndef MTDUTILS_MOUNTS_H_
-#define MTDUTILS_MOUNTS_H_
+#ifndef MOUNTS_H_
+#define MOUNTS_H_
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct MountedVolume MountedVolume;
+struct MountedVolume;
-int scan_mounted_volumes(void);
+bool scan_mounted_volumes();
-const MountedVolume *find_mounted_volume_by_device(const char *device);
+MountedVolume* find_mounted_volume_by_device(const char* device);
-const MountedVolume *
-find_mounted_volume_by_mount_point(const char *mount_point);
+MountedVolume* find_mounted_volume_by_mount_point(const char* mount_point);
-int unmount_mounted_volume(const MountedVolume *volume);
+int unmount_mounted_volume(MountedVolume* volume);
-int remount_read_only(const MountedVolume* volume);
+int remount_read_only(MountedVolume* volume);
-#ifdef __cplusplus
-}
#endif
-
-#endif // MTDUTILS_MOUNTS_H_
diff --git a/mtdutils/Android.mk b/mtdutils/Android.mk
deleted file mode 100644
index b7d35c27a..000000000
--- a/mtdutils/Android.mk
+++ /dev/null
@@ -1,20 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
- mtdutils.c \
- mounts.c
-
-LOCAL_MODULE := libmtdutils
-LOCAL_CLANG := true
-
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_CLANG := true
-LOCAL_SRC_FILES := flash_image.c
-LOCAL_MODULE := flash_image
-LOCAL_MODULE_TAGS := eng
-LOCAL_STATIC_LIBRARIES := libmtdutils
-LOCAL_SHARED_LIBRARIES := libcutils liblog libc
-include $(BUILD_EXECUTABLE)
diff --git a/mtdutils/flash_image.c b/mtdutils/flash_image.c
deleted file mode 100644
index 36ffa1314..000000000
--- a/mtdutils/flash_image.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (C) 2008 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 <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "cutils/log.h"
-#include "mtdutils.h"
-
-#ifdef LOG_TAG
-#undef LOG_TAG
-#endif
-#define LOG_TAG "flash_image"
-
-#define HEADER_SIZE 2048 // size of header to compare for equality
-
-void die(const char *msg, ...) {
- int err = errno;
- va_list args;
- va_start(args, msg);
- char buf[1024];
- vsnprintf(buf, sizeof(buf), msg, args);
- va_end(args);
-
- if (err != 0) {
- strlcat(buf, ": ", sizeof(buf));
- strlcat(buf, strerror(err), sizeof(buf));
- }
-
- fprintf(stderr, "%s\n", buf);
- ALOGE("%s\n", buf);
- exit(1);
-}
-
-/* Read an image file and write it to a flash partition. */
-
-int main(int argc, char **argv) {
- const MtdPartition *ptn;
- MtdWriteContext *write;
- void *data;
- unsigned sz;
-
- if (argc != 3) {
- fprintf(stderr, "usage: %s partition file.img\n", argv[0]);
- return 2;
- }
-
- if (mtd_scan_partitions() <= 0) die("error scanning partitions");
- const MtdPartition *partition = mtd_find_partition_by_name(argv[1]);
- if (partition == NULL) die("can't find %s partition", argv[1]);
-
- // If the first part of the file matches the partition, skip writing
-
- int fd = open(argv[2], O_RDONLY);
- if (fd < 0) die("error opening %s", argv[2]);
-
- char header[HEADER_SIZE];
- int headerlen = TEMP_FAILURE_RETRY(read(fd, header, sizeof(header)));
- if (headerlen <= 0) die("error reading %s header", argv[2]);
-
- MtdReadContext *in = mtd_read_partition(partition);
- if (in == NULL) {
- ALOGW("error opening %s: %s\n", argv[1], strerror(errno));
- // just assume it needs re-writing
- } else {
- char check[HEADER_SIZE];
- int checklen = mtd_read_data(in, check, sizeof(check));
- if (checklen <= 0) {
- ALOGW("error reading %s: %s\n", argv[1], strerror(errno));
- // just assume it needs re-writing
- } else if (checklen == headerlen && !memcmp(header, check, headerlen)) {
- ALOGI("header is the same, not flashing %s\n", argv[1]);
- return 0;
- }
- mtd_read_close(in);
- }
-
- // Skip the header (we'll come back to it), write everything else
- ALOGI("flashing %s from %s\n", argv[1], argv[2]);
-
- MtdWriteContext *out = mtd_write_partition(partition);
- if (out == NULL) die("error writing %s", argv[1]);
-
- char buf[HEADER_SIZE];
- memset(buf, 0, headerlen);
- int wrote = mtd_write_data(out, buf, headerlen);
- if (wrote != headerlen) die("error writing %s", argv[1]);
-
- int len;
- while ((len = TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf)))) > 0) {
- wrote = mtd_write_data(out, buf, len);
- if (wrote != len) die("error writing %s", argv[1]);
- }
- if (len < 0) die("error reading %s", argv[2]);
-
- if (mtd_write_close(out)) die("error closing %s", argv[1]);
-
- // Now come back and write the header last
-
- out = mtd_write_partition(partition);
- if (out == NULL) die("error re-opening %s", argv[1]);
-
- wrote = mtd_write_data(out, header, headerlen);
- if (wrote != headerlen) die("error re-writing %s", argv[1]);
-
- // Need to write a complete block, so write the rest of the first block
- size_t block_size;
- if (mtd_partition_info(partition, NULL, &block_size, NULL))
- die("error getting %s block size", argv[1]);
-
- if (TEMP_FAILURE_RETRY(lseek(fd, headerlen, SEEK_SET)) != headerlen)
- die("error rewinding %s", argv[2]);
-
- int left = block_size - headerlen;
- while (left < 0) left += block_size;
- while (left > 0) {
- len = TEMP_FAILURE_RETRY(read(fd, buf, left > (int)sizeof(buf) ? (int)sizeof(buf) : left));
- if (len <= 0) die("error reading %s", argv[2]);
- if (mtd_write_data(out, buf, len) != len)
- die("error writing %s", argv[1]);
- left -= len;
- }
-
- if (mtd_write_close(out)) die("error closing %s", argv[1]);
- return 0;
-}
diff --git a/mtdutils/mounts.c b/mtdutils/mounts.c
deleted file mode 100644
index 6a9b03d30..000000000
--- a/mtdutils/mounts.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Copyright (C) 2007 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 <mntent.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/mount.h>
-
-#include "mounts.h"
-
-struct MountedVolume {
- const char *device;
- const char *mount_point;
- const char *filesystem;
- const char *flags;
-};
-
-typedef struct {
- MountedVolume *volumes;
- int volumes_allocd;
- int volume_count;
-} MountsState;
-
-static MountsState g_mounts_state = {
- NULL, // volumes
- 0, // volumes_allocd
- 0 // volume_count
-};
-
-static inline void
-free_volume_internals(const MountedVolume *volume, int zero)
-{
- free((char *)volume->device);
- free((char *)volume->mount_point);
- free((char *)volume->filesystem);
- free((char *)volume->flags);
- if (zero) {
- memset((void *)volume, 0, sizeof(*volume));
- }
-}
-
-#define PROC_MOUNTS_FILENAME "/proc/mounts"
-
-int
-scan_mounted_volumes()
-{
- FILE* fp;
- struct mntent* mentry;
-
- if (g_mounts_state.volumes == NULL) {
- const int numv = 32;
- MountedVolume *volumes = malloc(numv * sizeof(*volumes));
- if (volumes == NULL) {
- errno = ENOMEM;
- return -1;
- }
- g_mounts_state.volumes = volumes;
- g_mounts_state.volumes_allocd = numv;
- memset(volumes, 0, numv * sizeof(*volumes));
- } else {
- /* Free the old volume strings.
- */
- int i;
- for (i = 0; i < g_mounts_state.volume_count; i++) {
- free_volume_internals(&g_mounts_state.volumes[i], 1);
- }
- }
- g_mounts_state.volume_count = 0;
-
- /* Open and read mount table entries. */
- fp = setmntent(PROC_MOUNTS_FILENAME, "r");
- if (fp == NULL) {
- return -1;
- }
- while ((mentry = getmntent(fp)) != NULL) {
- MountedVolume* v = &g_mounts_state.volumes[g_mounts_state.volume_count++];
- v->device = strdup(mentry->mnt_fsname);
- v->mount_point = strdup(mentry->mnt_dir);
- v->filesystem = strdup(mentry->mnt_type);
- v->flags = strdup(mentry->mnt_opts);
- }
- endmntent(fp);
- return 0;
-}
-
-const MountedVolume *
-find_mounted_volume_by_device(const char *device)
-{
- if (g_mounts_state.volumes != NULL) {
- int i;
- for (i = 0; i < g_mounts_state.volume_count; i++) {
- MountedVolume *v = &g_mounts_state.volumes[i];
- /* May be null if it was unmounted and we haven't rescanned.
- */
- if (v->device != NULL) {
- if (strcmp(v->device, device) == 0) {
- return v;
- }
- }
- }
- }
- return NULL;
-}
-
-const MountedVolume *
-find_mounted_volume_by_mount_point(const char *mount_point)
-{
- if (g_mounts_state.volumes != NULL) {
- int i;
- for (i = 0; i < g_mounts_state.volume_count; i++) {
- MountedVolume *v = &g_mounts_state.volumes[i];
- /* May be null if it was unmounted and we haven't rescanned.
- */
- if (v->mount_point != NULL) {
- if (strcmp(v->mount_point, mount_point) == 0) {
- return v;
- }
- }
- }
- }
- return NULL;
-}
-
-int
-unmount_mounted_volume(const MountedVolume *volume)
-{
- /* Intentionally pass NULL to umount if the caller tries
- * to unmount a volume they already unmounted using this
- * function.
- */
- int ret = umount(volume->mount_point);
- if (ret == 0) {
- free_volume_internals(volume, 1);
- return 0;
- }
- return ret;
-}
-
-int
-remount_read_only(const MountedVolume* volume)
-{
- return mount(volume->device, volume->mount_point, volume->filesystem,
- MS_NOATIME | MS_NODEV | MS_NODIRATIME |
- MS_RDONLY | MS_REMOUNT, 0);
-}
diff --git a/mtdutils/mtdutils.c b/mtdutils/mtdutils.c
deleted file mode 100644
index cd4f52cd5..000000000
--- a/mtdutils/mtdutils.c
+++ /dev/null
@@ -1,561 +0,0 @@
-/*
- * Copyright (C) 2007 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/mount.h> // for _IOW, _IOR, mount()
-#include <sys/stat.h>
-#include <mtd/mtd-user.h>
-#undef NDEBUG
-#include <assert.h>
-
-#include "mtdutils.h"
-
-struct MtdPartition {
- int device_index;
- unsigned int size;
- unsigned int erase_size;
- char *name;
-};
-
-struct MtdReadContext {
- const MtdPartition *partition;
- char *buffer;
- size_t consumed;
- int fd;
-};
-
-struct MtdWriteContext {
- const MtdPartition *partition;
- char *buffer;
- size_t stored;
- int fd;
-
- off_t* bad_block_offsets;
- int bad_block_alloc;
- int bad_block_count;
-};
-
-typedef struct {
- MtdPartition *partitions;
- int partitions_allocd;
- int partition_count;
-} MtdState;
-
-static MtdState g_mtd_state = {
- NULL, // partitions
- 0, // partitions_allocd
- -1 // partition_count
-};
-
-#define MTD_PROC_FILENAME "/proc/mtd"
-
-int
-mtd_scan_partitions()
-{
- char buf[2048];
- const char *bufp;
- int fd;
- int i;
- ssize_t nbytes;
-
- if (g_mtd_state.partitions == NULL) {
- const int nump = 32;
- MtdPartition *partitions = malloc(nump * sizeof(*partitions));
- if (partitions == NULL) {
- errno = ENOMEM;
- return -1;
- }
- g_mtd_state.partitions = partitions;
- g_mtd_state.partitions_allocd = nump;
- memset(partitions, 0, nump * sizeof(*partitions));
- }
- g_mtd_state.partition_count = 0;
-
- /* Initialize all of the entries to make things easier later.
- * (Lets us handle sparsely-numbered partitions, which
- * may not even be possible.)
- */
- for (i = 0; i < g_mtd_state.partitions_allocd; i++) {
- MtdPartition *p = &g_mtd_state.partitions[i];
- if (p->name != NULL) {
- free(p->name);
- p->name = NULL;
- }
- p->device_index = -1;
- }
-
- /* Open and read the file contents.
- */
- fd = open(MTD_PROC_FILENAME, O_RDONLY);
- if (fd < 0) {
- goto bail;
- }
- nbytes = TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf) - 1));
- close(fd);
- if (nbytes < 0) {
- goto bail;
- }
- buf[nbytes] = '\0';
-
- /* Parse the contents of the file, which looks like:
- *
- * # cat /proc/mtd
- * dev: size erasesize name
- * mtd0: 00080000 00020000 "bootloader"
- * mtd1: 00400000 00020000 "mfg_and_gsm"
- * mtd2: 00400000 00020000 "0000000c"
- * mtd3: 00200000 00020000 "0000000d"
- * mtd4: 04000000 00020000 "system"
- * mtd5: 03280000 00020000 "userdata"
- */
- bufp = buf;
- while (nbytes > 0) {
- int mtdnum, mtdsize, mtderasesize;
- int matches;
- char mtdname[64];
- mtdname[0] = '\0';
- mtdnum = -1;
-
- matches = sscanf(bufp, "mtd%d: %x %x \"%63[^\"]",
- &mtdnum, &mtdsize, &mtderasesize, mtdname);
- /* This will fail on the first line, which just contains
- * column headers.
- */
- if (matches == 4) {
- MtdPartition *p = &g_mtd_state.partitions[mtdnum];
- p->device_index = mtdnum;
- p->size = mtdsize;
- p->erase_size = mtderasesize;
- p->name = strdup(mtdname);
- if (p->name == NULL) {
- errno = ENOMEM;
- goto bail;
- }
- g_mtd_state.partition_count++;
- }
-
- /* Eat the line.
- */
- while (nbytes > 0 && *bufp != '\n') {
- bufp++;
- nbytes--;
- }
- if (nbytes > 0) {
- bufp++;
- nbytes--;
- }
- }
-
- return g_mtd_state.partition_count;
-
-bail:
- // keep "partitions" around so we can free the names on a rescan.
- g_mtd_state.partition_count = -1;
- return -1;
-}
-
-const MtdPartition *
-mtd_find_partition_by_name(const char *name)
-{
- if (g_mtd_state.partitions != NULL) {
- int i;
- for (i = 0; i < g_mtd_state.partitions_allocd; i++) {
- MtdPartition *p = &g_mtd_state.partitions[i];
- if (p->device_index >= 0 && p->name != NULL) {
- if (strcmp(p->name, name) == 0) {
- return p;
- }
- }
- }
- }
- return NULL;
-}
-
-int
-mtd_mount_partition(const MtdPartition *partition, const char *mount_point,
- const char *filesystem, int read_only)
-{
- const unsigned long flags = MS_NOATIME | MS_NODEV | MS_NODIRATIME;
- char devname[64];
- int rv = -1;
-
- sprintf(devname, "/dev/block/mtdblock%d", partition->device_index);
- if (!read_only) {
- rv = mount(devname, mount_point, filesystem, flags, NULL);
- }
- if (read_only || rv < 0) {
- rv = mount(devname, mount_point, filesystem, flags | MS_RDONLY, 0);
- if (rv < 0) {
- printf("Failed to mount %s on %s: %s\n",
- devname, mount_point, strerror(errno));
- } else {
- printf("Mount %s on %s read-only\n", devname, mount_point);
- }
- }
-#if 1 //TODO: figure out why this is happening; remove include of stat.h
- if (rv >= 0) {
- /* For some reason, the x bits sometimes aren't set on the root
- * of mounted volumes.
- */
- struct stat st;
- rv = stat(mount_point, &st);
- if (rv < 0) {
- return rv;
- }
- mode_t new_mode = st.st_mode | S_IXUSR | S_IXGRP | S_IXOTH;
- if (new_mode != st.st_mode) {
-printf("Fixing execute permissions for %s\n", mount_point);
- rv = chmod(mount_point, new_mode);
- if (rv < 0) {
- printf("Couldn't fix permissions for %s: %s\n",
- mount_point, strerror(errno));
- }
- }
- }
-#endif
- return rv;
-}
-
-int
-mtd_partition_info(const MtdPartition *partition,
- size_t *total_size, size_t *erase_size, size_t *write_size)
-{
- char mtddevname[32];
- sprintf(mtddevname, "/dev/mtd/mtd%d", partition->device_index);
- int fd = open(mtddevname, O_RDONLY);
- if (fd < 0) return -1;
-
- struct mtd_info_user mtd_info;
- int ret = ioctl(fd, MEMGETINFO, &mtd_info);
- close(fd);
- if (ret < 0) return -1;
-
- if (total_size != NULL) *total_size = mtd_info.size;
- if (erase_size != NULL) *erase_size = mtd_info.erasesize;
- if (write_size != NULL) *write_size = mtd_info.writesize;
- return 0;
-}
-
-MtdReadContext *mtd_read_partition(const MtdPartition *partition)
-{
- MtdReadContext *ctx = (MtdReadContext*) malloc(sizeof(MtdReadContext));
- if (ctx == NULL) return NULL;
-
- ctx->buffer = malloc(partition->erase_size);
- if (ctx->buffer == NULL) {
- free(ctx);
- return NULL;
- }
-
- char mtddevname[32];
- sprintf(mtddevname, "/dev/mtd/mtd%d", partition->device_index);
- ctx->fd = open(mtddevname, O_RDONLY);
- if (ctx->fd < 0) {
- free(ctx->buffer);
- free(ctx);
- return NULL;
- }
-
- ctx->partition = partition;
- ctx->consumed = partition->erase_size;
- return ctx;
-}
-
-static int read_block(const MtdPartition *partition, int fd, char *data)
-{
- struct mtd_ecc_stats before, after;
- if (ioctl(fd, ECCGETSTATS, &before)) {
- printf("mtd: ECCGETSTATS error (%s)\n", strerror(errno));
- return -1;
- }
-
- loff_t pos = TEMP_FAILURE_RETRY(lseek64(fd, 0, SEEK_CUR));
- if (pos == -1) {
- printf("mtd: read_block: couldn't SEEK_CUR: %s\n", strerror(errno));
- return -1;
- }
-
- ssize_t size = partition->erase_size;
- int mgbb;
-
- while (pos + size <= (int) partition->size) {
- if (TEMP_FAILURE_RETRY(lseek64(fd, pos, SEEK_SET)) != pos ||
- TEMP_FAILURE_RETRY(read(fd, data, size)) != size) {
- printf("mtd: read error at 0x%08llx (%s)\n",
- (long long)pos, strerror(errno));
- } else if (ioctl(fd, ECCGETSTATS, &after)) {
- printf("mtd: ECCGETSTATS error (%s)\n", strerror(errno));
- return -1;
- } else if (after.failed != before.failed) {
- printf("mtd: ECC errors (%d soft, %d hard) at 0x%08llx\n",
- after.corrected - before.corrected,
- after.failed - before.failed, (long long)pos);
- // copy the comparison baseline for the next read.
- memcpy(&before, &after, sizeof(struct mtd_ecc_stats));
- } else if ((mgbb = ioctl(fd, MEMGETBADBLOCK, &pos))) {
- fprintf(stderr,
- "mtd: MEMGETBADBLOCK returned %d at 0x%08llx: %s\n",
- mgbb, (long long)pos, strerror(errno));
- } else {
- return 0; // Success!
- }
-
- pos += partition->erase_size;
- }
-
- errno = ENOSPC;
- return -1;
-}
-
-ssize_t mtd_read_data(MtdReadContext *ctx, char *data, size_t len)
-{
- size_t read = 0;
- while (read < len) {
- if (ctx->consumed < ctx->partition->erase_size) {
- size_t avail = ctx->partition->erase_size - ctx->consumed;
- size_t copy = len - read < avail ? len - read : avail;
- memcpy(data + read, ctx->buffer + ctx->consumed, copy);
- ctx->consumed += copy;
- read += copy;
- }
-
- // Read complete blocks directly into the user's buffer
- while (ctx->consumed == ctx->partition->erase_size &&
- len - read >= ctx->partition->erase_size) {
- if (read_block(ctx->partition, ctx->fd, data + read)) return -1;
- read += ctx->partition->erase_size;
- }
-
- if (read >= len) {
- return read;
- }
-
- // Read the next block into the buffer
- if (ctx->consumed == ctx->partition->erase_size && read < len) {
- if (read_block(ctx->partition, ctx->fd, ctx->buffer)) return -1;
- ctx->consumed = 0;
- }
- }
-
- return read;
-}
-
-void mtd_read_close(MtdReadContext *ctx)
-{
- close(ctx->fd);
- free(ctx->buffer);
- free(ctx);
-}
-
-MtdWriteContext *mtd_write_partition(const MtdPartition *partition)
-{
- MtdWriteContext *ctx = (MtdWriteContext*) malloc(sizeof(MtdWriteContext));
- if (ctx == NULL) return NULL;
-
- ctx->bad_block_offsets = NULL;
- ctx->bad_block_alloc = 0;
- ctx->bad_block_count = 0;
-
- ctx->buffer = malloc(partition->erase_size);
- if (ctx->buffer == NULL) {
- free(ctx);
- return NULL;
- }
-
- char mtddevname[32];
- sprintf(mtddevname, "/dev/mtd/mtd%d", partition->device_index);
- ctx->fd = open(mtddevname, O_RDWR);
- if (ctx->fd < 0) {
- free(ctx->buffer);
- free(ctx);
- return NULL;
- }
-
- ctx->partition = partition;
- ctx->stored = 0;
- return ctx;
-}
-
-static void add_bad_block_offset(MtdWriteContext *ctx, off_t pos) {
- if (ctx->bad_block_count + 1 > ctx->bad_block_alloc) {
- ctx->bad_block_alloc = (ctx->bad_block_alloc*2) + 1;
- ctx->bad_block_offsets = realloc(ctx->bad_block_offsets,
- ctx->bad_block_alloc * sizeof(off_t));
- }
- ctx->bad_block_offsets[ctx->bad_block_count++] = pos;
-}
-
-static int write_block(MtdWriteContext *ctx, const char *data)
-{
- const MtdPartition *partition = ctx->partition;
- int fd = ctx->fd;
-
- off_t pos = TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_CUR));
- if (pos == (off_t) -1) {
- printf("mtd: write_block: couldn't SEEK_CUR: %s\n", strerror(errno));
- return -1;
- }
-
- ssize_t size = partition->erase_size;
- while (pos + size <= (int) partition->size) {
- loff_t bpos = pos;
- int ret = ioctl(fd, MEMGETBADBLOCK, &bpos);
- if (ret != 0 && !(ret == -1 && errno == EOPNOTSUPP)) {
- add_bad_block_offset(ctx, pos);
- fprintf(stderr,
- "mtd: not writing bad block at 0x%08lx (ret %d): %s\n",
- pos, ret, strerror(errno));
- pos += partition->erase_size;
- continue; // Don't try to erase known factory-bad blocks.
- }
-
- struct erase_info_user erase_info;
- erase_info.start = pos;
- erase_info.length = size;
- int retry;
- for (retry = 0; retry < 2; ++retry) {
- if (ioctl(fd, MEMERASE, &erase_info) < 0) {
- printf("mtd: erase failure at 0x%08lx (%s)\n",
- pos, strerror(errno));
- continue;
- }
- if (TEMP_FAILURE_RETRY(lseek(fd, pos, SEEK_SET)) != pos ||
- TEMP_FAILURE_RETRY(write(fd, data, size)) != size) {
- printf("mtd: write error at 0x%08lx (%s)\n",
- pos, strerror(errno));
- }
-
- char verify[size];
- if (TEMP_FAILURE_RETRY(lseek(fd, pos, SEEK_SET)) != pos ||
- TEMP_FAILURE_RETRY(read(fd, verify, size)) != size) {
- printf("mtd: re-read error at 0x%08lx (%s)\n",
- pos, strerror(errno));
- continue;
- }
- if (memcmp(data, verify, size) != 0) {
- printf("mtd: verification error at 0x%08lx (%s)\n",
- pos, strerror(errno));
- continue;
- }
-
- if (retry > 0) {
- printf("mtd: wrote block after %d retries\n", retry);
- }
- printf("mtd: successfully wrote block at %lx\n", pos);
- return 0; // Success!
- }
-
- // Try to erase it once more as we give up on this block
- add_bad_block_offset(ctx, pos);
- printf("mtd: skipping write block at 0x%08lx\n", pos);
- ioctl(fd, MEMERASE, &erase_info);
- pos += partition->erase_size;
- }
-
- // Ran out of space on the device
- errno = ENOSPC;
- return -1;
-}
-
-ssize_t mtd_write_data(MtdWriteContext *ctx, const char *data, size_t len)
-{
- size_t wrote = 0;
- while (wrote < len) {
- // Coalesce partial writes into complete blocks
- if (ctx->stored > 0 || len - wrote < ctx->partition->erase_size) {
- size_t avail = ctx->partition->erase_size - ctx->stored;
- size_t copy = len - wrote < avail ? len - wrote : avail;
- memcpy(ctx->buffer + ctx->stored, data + wrote, copy);
- ctx->stored += copy;
- wrote += copy;
- }
-
- // If a complete block was accumulated, write it
- if (ctx->stored == ctx->partition->erase_size) {
- if (write_block(ctx, ctx->buffer)) return -1;
- ctx->stored = 0;
- }
-
- // Write complete blocks directly from the user's buffer
- while (ctx->stored == 0 && len - wrote >= ctx->partition->erase_size) {
- if (write_block(ctx, data + wrote)) return -1;
- wrote += ctx->partition->erase_size;
- }
- }
-
- return wrote;
-}
-
-off_t mtd_erase_blocks(MtdWriteContext *ctx, int blocks)
-{
- // Zero-pad and write any pending data to get us to a block boundary
- if (ctx->stored > 0) {
- size_t zero = ctx->partition->erase_size - ctx->stored;
- memset(ctx->buffer + ctx->stored, 0, zero);
- if (write_block(ctx, ctx->buffer)) return -1;
- ctx->stored = 0;
- }
-
- off_t pos = TEMP_FAILURE_RETRY(lseek(ctx->fd, 0, SEEK_CUR));
- if ((off_t) pos == (off_t) -1) {
- printf("mtd_erase_blocks: couldn't SEEK_CUR: %s\n", strerror(errno));
- return -1;
- }
-
- const int total = (ctx->partition->size - pos) / ctx->partition->erase_size;
- if (blocks < 0) blocks = total;
- if (blocks > total) {
- errno = ENOSPC;
- return -1;
- }
-
- // Erase the specified number of blocks
- while (blocks-- > 0) {
- loff_t bpos = pos;
- if (ioctl(ctx->fd, MEMGETBADBLOCK, &bpos) > 0) {
- printf("mtd: not erasing bad block at 0x%08lx\n", pos);
- pos += ctx->partition->erase_size;
- continue; // Don't try to erase known factory-bad blocks.
- }
-
- struct erase_info_user erase_info;
- erase_info.start = pos;
- erase_info.length = ctx->partition->erase_size;
- if (ioctl(ctx->fd, MEMERASE, &erase_info) < 0) {
- printf("mtd: erase failure at 0x%08lx\n", pos);
- }
- pos += ctx->partition->erase_size;
- }
-
- return pos;
-}
-
-int mtd_write_close(MtdWriteContext *ctx)
-{
- int r = 0;
- // Make sure any pending data gets written
- if (mtd_erase_blocks(ctx, 0) == (off_t) -1) r = -1;
- if (close(ctx->fd)) r = -1;
- free(ctx->bad_block_offsets);
- free(ctx->buffer);
- free(ctx);
- return r;
-}
diff --git a/mtdutils/mtdutils.h b/mtdutils/mtdutils.h
deleted file mode 100644
index 8059d6a4d..000000000
--- a/mtdutils/mtdutils.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (C) 2007 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 MTDUTILS_H_
-#define MTDUTILS_H_
-
-#include <sys/types.h> // for size_t, etc.
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct MtdPartition MtdPartition;
-
-int mtd_scan_partitions(void);
-
-const MtdPartition *mtd_find_partition_by_name(const char *name);
-
-/* mount_point is like "/system"
- * filesystem is like "yaffs2"
- */
-int mtd_mount_partition(const MtdPartition *partition, const char *mount_point,
- const char *filesystem, int read_only);
-
-/* get the partition and the minimum erase/write block size. NULL is ok.
- */
-int mtd_partition_info(const MtdPartition *partition,
- size_t *total_size, size_t *erase_size, size_t *write_size);
-
-/* read or write raw data from a partition, starting at the beginning.
- * skips bad blocks as best we can.
- */
-typedef struct MtdReadContext MtdReadContext;
-typedef struct MtdWriteContext MtdWriteContext;
-
-MtdReadContext *mtd_read_partition(const MtdPartition *);
-ssize_t mtd_read_data(MtdReadContext *, char *data, size_t data_len);
-void mtd_read_close(MtdReadContext *);
-
-MtdWriteContext *mtd_write_partition(const MtdPartition *);
-ssize_t mtd_write_data(MtdWriteContext *, const char *data, size_t data_len);
-off_t mtd_erase_blocks(MtdWriteContext *, int blocks); /* 0 ok, -1 for all */
-int mtd_write_close(MtdWriteContext *);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // MTDUTILS_H_
diff --git a/roots.cpp b/roots.cpp
index f361cb8ca..2fec9ae9d 100644
--- a/roots.cpp
+++ b/roots.cpp
@@ -14,6 +14,8 @@
* limitations under the License.
*/
+#include "roots.h"
+
#include <errno.h>
#include <stdlib.h>
#include <sys/mount.h>
@@ -25,11 +27,9 @@
#include <fcntl.h>
#include <fs_mgr.h>
-#include "mtdutils/mtdutils.h"
-#include "mtdutils/mounts.h"
-#include "roots.h"
#include "common.h"
#include "make_ext4fs.h"
+#include "mounts.h"
#include "wipe.h"
#include "cryptfs.h"
@@ -82,9 +82,7 @@ int ensure_path_mounted_at(const char* path, const char* mount_point) {
return 0;
}
- int result;
- result = scan_mounted_volumes();
- if (result < 0) {
+ if (!scan_mounted_volumes()) {
LOGE("failed to scan mounted volumes\n");
return -1;
}
@@ -93,8 +91,7 @@ int ensure_path_mounted_at(const char* path, const char* mount_point) {
mount_point = v->mount_point;
}
- const MountedVolume* mv =
- find_mounted_volume_by_mount_point(mount_point);
+ MountedVolume* mv = find_mounted_volume_by_mount_point(mount_point);
if (mv) {
// volume is already mounted
return 0;
@@ -102,26 +99,14 @@ int ensure_path_mounted_at(const char* path, const char* mount_point) {
mkdir(mount_point, 0755); // in case it doesn't already exist
- if (strcmp(v->fs_type, "yaffs2") == 0) {
- // mount an MTD partition as a YAFFS2 filesystem.
- mtd_scan_partitions();
- const MtdPartition* partition;
- partition = mtd_find_partition_by_name(v->blk_device);
- if (partition == NULL) {
- LOGE("failed to find \"%s\" partition to mount at \"%s\"\n",
- v->blk_device, mount_point);
- return -1;
- }
- return mtd_mount_partition(partition, mount_point, v->fs_type, 0);
- } else if (strcmp(v->fs_type, "ext4") == 0 ||
+ if (strcmp(v->fs_type, "ext4") == 0 ||
strcmp(v->fs_type, "squashfs") == 0 ||
strcmp(v->fs_type, "vfat") == 0) {
- result = mount(v->blk_device, mount_point, v->fs_type,
- v->flags, v->fs_options);
- if (result == 0) return 0;
-
- LOGE("failed to mount %s (%s)\n", mount_point, strerror(errno));
- return -1;
+ if (mount(v->blk_device, mount_point, v->fs_type, v->flags, v->fs_options) == -1) {
+ LOGE("failed to mount %s (%s)\n", mount_point, strerror(errno));
+ return -1;
+ }
+ return 0;
}
LOGE("unknown fs_type \"%s\" for %s\n", v->fs_type, mount_point);
@@ -144,15 +129,12 @@ int ensure_path_unmounted(const char* path) {
return -1;
}
- int result;
- result = scan_mounted_volumes();
- if (result < 0) {
+ if (!scan_mounted_volumes()) {
LOGE("failed to scan mounted volumes\n");
return -1;
}
- const MountedVolume* mv =
- find_mounted_volume_by_mount_point(v->mount_point);
+ MountedVolume* mv = find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL) {
// volume is already unmounted
return 0;
@@ -196,29 +178,6 @@ int format_volume(const char* volume, const char* directory) {
return -1;
}
- if (strcmp(v->fs_type, "yaffs2") == 0 || strcmp(v->fs_type, "mtd") == 0) {
- mtd_scan_partitions();
- const MtdPartition* partition = mtd_find_partition_by_name(v->blk_device);
- if (partition == NULL) {
- LOGE("format_volume: no MTD partition \"%s\"\n", v->blk_device);
- return -1;
- }
-
- MtdWriteContext *write = mtd_write_partition(partition);
- if (write == NULL) {
- LOGW("format_volume: can't open MTD \"%s\"\n", v->blk_device);
- return -1;
- } else if (mtd_erase_blocks(write, -1) == (off_t) -1) {
- LOGW("format_volume: can't erase MTD \"%s\"\n", v->blk_device);
- mtd_write_close(write);
- return -1;
- } else if (mtd_write_close(write)) {
- LOGW("format_volume: can't close MTD \"%s\"\n", v->blk_device);
- return -1;
- }
- return 0;
- }
-
if (strcmp(v->fs_type, "ext4") == 0 || strcmp(v->fs_type, "f2fs") == 0) {
// if there's a key_loc that looks like a path, it should be a
// block device for storing encryption metadata. wipe it too.
diff --git a/updater/Android.mk b/updater/Android.mk
index 7c3f6160c..75af4bdd0 100644
--- a/updater/Android.mk
+++ b/updater/Android.mk
@@ -40,8 +40,8 @@ LOCAL_STATIC_LIBRARIES += \
libbase \
libotafault \
libedify \
- libmtdutils \
libminzip \
+ libmounts \
libz \
libbz \
libcutils \
@@ -60,14 +60,11 @@ LOCAL_STATIC_LIBRARIES += \
libtune2fs \
$(tune2fs_static_libraries)
-ifeq ($(TARGET_USERIMAGES_USE_EXT4), true)
-LOCAL_CFLAGS += -DUSE_EXT4
LOCAL_CFLAGS += -Wno-unused-parameter
LOCAL_C_INCLUDES += system/extras/ext4_utils
LOCAL_STATIC_LIBRARIES += \
libsparse_static \
libz
-endif
LOCAL_C_INCLUDES += external/e2fsprogs/misc
LOCAL_C_INCLUDES += $(LOCAL_PATH)/..
diff --git a/updater/install.cpp b/updater/install.cpp
index 4148e5415..cf3e938a4 100644
--- a/updater/install.cpp
+++ b/updater/install.cpp
@@ -50,18 +50,15 @@
#include "edify/expr.h"
#include "error_code.h"
#include "minzip/DirUtil.h"
-#include "mtdutils/mounts.h"
-#include "mtdutils/mtdutils.h"
+#include "mounts.h"
#include "openssl/sha.h"
#include "ota_io.h"
#include "updater.h"
#include "install.h"
#include "tune2fs.h"
-#ifdef USE_EXT4
#include "make_ext4fs.h"
#include "wipe.h"
-#endif
// Send over the buffer to recovery though the command pipe.
static void uiPrint(State* state, const std::string& buffer) {
@@ -110,7 +107,6 @@ char* PrintSha1(const uint8_t* digest) {
// mount(fs_type, partition_type, location, mount_point)
//
-// 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;
@@ -172,33 +168,14 @@ Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
}
}
- if (strcmp(partition_type, "MTD") == 0) {
- mtd_scan_partitions();
- const MtdPartition* mtd;
- mtd = mtd_find_partition_by_name(location);
- if (mtd == NULL) {
- uiPrintf(state, "%s: no mtd partition named \"%s\"\n",
- name, location);
- result = strdup("");
- goto done;
- }
- if (mtd_mount_partition(mtd, mount_point, fs_type, 0 /* rw */) != 0) {
- uiPrintf(state, "mtd mount of %s failed: %s\n",
- location, strerror(errno));
- result = strdup("");
- goto done;
- }
- result = mount_point;
+ if (mount(location, mount_point, fs_type,
+ MS_NOATIME | MS_NODEV | MS_NODIRATIME,
+ has_mount_options ? mount_options : "") < 0) {
+ uiPrintf(state, "%s: failed to mount %s at %s: %s\n",
+ name, location, mount_point, strerror(errno));
+ result = strdup("");
} else {
- if (mount(location, mount_point, fs_type,
- MS_NOATIME | MS_NODEV | MS_NODIRATIME,
- has_mount_options ? mount_options : "") < 0) {
- uiPrintf(state, "%s: failed to mount %s at %s: %s\n",
- name, location, mount_point, strerror(errno));
- result = strdup("");
- } else {
- result = mount_point;
- }
+ result = mount_point;
}
done:
@@ -228,7 +205,7 @@ Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) {
scan_mounted_volumes();
{
- const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
+ MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
if (vol == NULL) {
result = strdup("");
} else {
@@ -258,7 +235,7 @@ Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) {
scan_mounted_volumes();
{
- const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
+ MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
if (vol == NULL) {
uiPrintf(state, "unmount of %s failed; no such volume\n", mount_point);
result = strdup("");
@@ -294,7 +271,6 @@ static int exec_cmd(const char* path, char* const argv[]) {
// 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>
// 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.
@@ -335,35 +311,7 @@ Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
goto done;
}
- if (strcmp(partition_type, "MTD") == 0) {
- mtd_scan_partitions();
- const MtdPartition* mtd = mtd_find_partition_by_name(location);
- if (mtd == NULL) {
- printf("%s: no mtd partition named \"%s\"",
- name, location);
- result = strdup("");
- goto done;
- }
- MtdWriteContext* ctx = mtd_write_partition(mtd);
- if (ctx == NULL) {
- printf("%s: can't write \"%s\"", name, location);
- result = strdup("");
- goto done;
- }
- if (mtd_erase_blocks(ctx, -1) == -1) {
- mtd_write_close(ctx);
- printf("%s: failed to erase \"%s\"", name, location);
- result = strdup("");
- goto done;
- }
- if (mtd_write_close(ctx) != 0) {
- printf("%s: failed to close \"%s\"", name, location);
- result = strdup("");
- goto done;
- }
- result = location;
-#ifdef USE_EXT4
- } else if (strcmp(fs_type, "ext4") == 0) {
+ if (strcmp(fs_type, "ext4") == 0) {
int status = make_ext4fs(location, atoll(fs_size), mount_point, sehandle);
if (status != 0) {
printf("%s: make_ext4fs failed (%d) on %s",
@@ -390,7 +338,6 @@ Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
goto done;
}
result = location;
-#endif
} else {
printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"",
name, fs_type, partition_type);
@@ -1067,98 +1014,6 @@ Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
return StringValue(result);
}
-// write_raw_image(filename_or_blob, partition)
-Value* WriteRawImageFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
-
- Value* partition_value;
- Value* contents;
- if (ReadValueArgs(state, argv, 2, &contents, &partition_value) < 0) {
- return NULL;
- }
-
- char* partition = NULL;
- if (partition_value->type != VAL_STRING) {
- ErrorAbort(state, kArgsParsingFailure, "partition argument to %s must be string", name);
- goto done;
- }
- partition = partition_value->data;
- if (strlen(partition) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "partition argument to %s can't be empty", name);
- goto done;
- }
- if (contents->type == VAL_STRING && strlen((char*) contents->data) == 0) {
- ErrorAbort(state, kArgsParsingFailure, "file argument to %s can't be empty", name);
- goto done;
- }
-
- mtd_scan_partitions();
- const MtdPartition* mtd;
- mtd = mtd_find_partition_by_name(partition);
- if (mtd == NULL) {
- printf("%s: no mtd partition named \"%s\"\n", name, partition);
- result = strdup("");
- goto done;
- }
-
- MtdWriteContext* ctx;
- ctx = mtd_write_partition(mtd);
- if (ctx == NULL) {
- printf("%s: can't write mtd partition \"%s\"\n",
- name, partition);
- result = strdup("");
- goto done;
- }
-
- bool success;
-
- if (contents->type == VAL_STRING) {
- // we're given a filename as the contents
- char* filename = contents->data;
- FILE* f = ota_fopen(filename, "rb");
- if (f == NULL) {
- printf("%s: can't open %s: %s\n", name, filename, strerror(errno));
- result = strdup("");
- goto done;
- }
-
- success = true;
- char* buffer = reinterpret_cast<char*>(malloc(BUFSIZ));
- int read;
- while (success && (read = ota_fread(buffer, 1, BUFSIZ, f)) > 0) {
- int wrote = mtd_write_data(ctx, buffer, read);
- success = success && (wrote == read);
- }
- free(buffer);
- ota_fclose(f);
- } else {
- // we're given a blob as the contents
- ssize_t wrote = mtd_write_data(ctx, contents->data, contents->size);
- success = (wrote == contents->size);
- }
- if (!success) {
- printf("mtd_write_data to %s failed: %s\n",
- partition, strerror(errno));
- }
-
- if (mtd_erase_blocks(ctx, -1) == -1) {
- printf("%s: error erasing blocks of %s\n", name, partition);
- }
- if (mtd_write_close(ctx) != 0) {
- printf("%s: error closing write of %s\n", name, partition);
- }
-
- printf("%s %s partition\n",
- success ? "wrote" : "failed to write", partition);
-
- result = success ? partition : strdup("");
-
-done:
- if (result != partition) FreeValue(partition_value);
- FreeValue(contents);
- return StringValue(result);
-}
-
// apply_patch_space(bytes)
Value* ApplyPatchSpaceFn(const char* name, State* state,
int argc, Expr* argv[]) {
@@ -1617,7 +1472,6 @@ void RegisterInstallFunctions() {
RegisterFunction("getprop", GetPropFn);
RegisterFunction("file_getprop", FileGetPropFn);
- RegisterFunction("write_raw_image", WriteRawImageFn);
RegisterFunction("apply_patch", ApplyPatchFn);
RegisterFunction("apply_patch_check", ApplyPatchCheckFn);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 06:25:29 +0100