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Merge "Removed HW encryption build flags and related code."

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This commit is contained in:
Isaac Chen 2017-02-15 08:45:29 +00:00 committed by Gerrit Code Review
commit bf8518056d
2 changed files with 0 additions and 66 deletions
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6
Android.mk
View file

@ -113,12 +113,6 @@ LOCAL_C_INCLUDES := $(common_c_includes)
LOCAL_CFLAGS := $(vold_cflags)
LOCAL_CONLYFLAGS := $(vold_conlyflags)
ifeq ($(TARGET_HW_DISK_ENCRYPTION),true)
LOCAL_C_INCLUDES += $(TARGET_CRYPTFS_HW_PATH)
common_shared_libraries += libcryptfs_hw
LOCAL_CFLAGS += -DCONFIG_HW_DISK_ENCRYPTION
endif
LOCAL_SHARED_LIBRARIES := $(common_shared_libraries)
LOCAL_STATIC_LIBRARIES := $(common_static_libraries)
LOCAL_REQUIRED_MODULES := $(required_modules)

60
cryptfs.c
View file

@ -70,10 +70,6 @@
#define UNUSED __attribute__((unused))
#ifdef CONFIG_HW_DISK_ENCRYPTION
#include "cryptfs_hw.h"
#endif
#define DM_CRYPT_BUF_SIZE 4096
#define HASH_COUNT 2000
@ -1080,16 +1076,7 @@ static int load_crypto_mapping_table(struct crypt_mnt_ftr *crypt_ftr,
tgt->status = 0;
tgt->sector_start = 0;
tgt->length = crypt_ftr->fs_size;
#ifdef CONFIG_HW_DISK_ENCRYPTION
if (!strcmp((char *)crypt_ftr->crypto_type_name, "aes-xts")) {
strlcpy(tgt->target_type, "req-crypt", DM_MAX_TYPE_NAME);
}
else {
strlcpy(tgt->target_type, "crypt", DM_MAX_TYPE_NAME);
}
#else
strlcpy(tgt->target_type, "crypt", DM_MAX_TYPE_NAME);
#endif
crypt_params = buffer + sizeof(struct dm_ioctl) + sizeof(struct dm_target_spec);
convert_key_to_hex_ascii(master_key, crypt_ftr->keysize, master_key_ascii);
@ -1134,11 +1121,7 @@ static int get_dm_crypt_version(int fd, const char *name, int *version)
*/
v = (struct dm_target_versions *) &buffer[sizeof(struct dm_ioctl)];
while (v->next) {
#ifdef CONFIG_HW_DISK_ENCRYPTION
if (! strcmp(v->name, "crypt") || ! strcmp(v->name, "req-crypt")) {
#else
if (! strcmp(v->name, "crypt")) {
#endif
/* We found the crypt driver, return the version, and get out */
version[0] = v->version[0];
version[1] = v->version[1];
@ -1851,14 +1834,6 @@ static int test_mount_encrypted_fs(struct crypt_mnt_ftr* crypt_ftr,
fs_mgr_get_crypt_info(fstab, 0, real_blkdev, sizeof(real_blkdev));
#ifdef CONFIG_HW_DISK_ENCRYPTION
if (!strcmp((char *)crypt_ftr->crypto_type_name, "aes-xts")) {
if(!set_hw_device_encryption_key(passwd, (char*) crypt_ftr->crypto_type_name)) {
SLOGE("Hardware encryption key does not match");
}
}
#endif
// Create crypto block device - all (non fatal) code paths
// need it
if (create_crypto_blk_dev(crypt_ftr, decrypted_master_key,
@ -2252,11 +2227,7 @@ static int cryptfs_enable_wipe(char *crypto_blkdev, off64_t size, int type)
/* aligned 32K writes tends to make flash happy.
* SD card association recommends it.
*/
#ifndef CONFIG_HW_DISK_ENCRYPTION
#define BLOCKS_AT_A_TIME 8
#else
#define BLOCKS_AT_A_TIME 1024
#endif
struct encryptGroupsData
{
@ -3123,23 +3094,7 @@ int cryptfs_enable_internal(char *howarg, int crypt_type, char *passwd,
crypt_ftr.flags |= CRYPT_INCONSISTENT_STATE;
}
crypt_ftr.crypt_type = crypt_type;
#ifndef CONFIG_HW_DISK_ENCRYPTION
strlcpy((char *)crypt_ftr.crypto_type_name, "aes-cbc-essiv:sha256", MAX_CRYPTO_TYPE_NAME_LEN);
#else
strlcpy((char *)crypt_ftr.crypto_type_name, "aes-xts", MAX_CRYPTO_TYPE_NAME_LEN);
rc = clear_hw_device_encryption_key();
if (!rc) {
SLOGE("Error clearing device encryption hardware key. rc = %d", rc);
}
rc = set_hw_device_encryption_key(passwd,
(char*) crypt_ftr.crypto_type_name);
if (!rc) {
SLOGE("Error initializing device encryption hardware key. rc = %d", rc);
goto error_shutting_down;
}
#endif
/* Make an encrypted master key */
if (create_encrypted_random_key(onlyCreateHeader ? DEFAULT_PASSWORD : passwd,
@ -3373,21 +3328,6 @@ int cryptfs_changepw(int crypt_type, const char *newpw)
/* save the key */
put_crypt_ftr_and_key(&crypt_ftr);
#ifdef CONFIG_HW_DISK_ENCRYPTION
if (!strcmp((char *)crypt_ftr.crypto_type_name, "aes-xts")) {
if (crypt_type == CRYPT_TYPE_DEFAULT) {
int rc = update_hw_device_encryption_key(DEFAULT_PASSWORD, (char*) crypt_ftr.crypto_type_name);
SLOGD("Update hardware encryption key to default for crypt_type: %d. rc = %d", crypt_type, rc);
if (!rc)
return -1;
} else {
int rc = update_hw_device_encryption_key(newpw, (char*) crypt_ftr.crypto_type_name);
SLOGD("Update hardware encryption key for crypt_type: %d. rc = %d", crypt_type, rc);
if (!rc)
return -1;
}
}
#endif
return 0;
}