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authorAnilKumar Chimata <anilc@codeaurora.org>2018-06-14 11:13:17 (GMT)
committerAnilKumar Chimata <anilc@codeaurora.org>2018-06-20 16:41:26 (GMT)
commit7cc34529cd52b1522ed60497437851758312c066 (patch)
tree330568278f9a7bf38c2149843cc193d0d72cf765
parent36017216cce7d7fdf9c2b2eacc9835fd2d0f6d21 (diff)
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cryptfs: Allow vold to set encryption info
Vold needs to set partition and ICE specific data before encryption starts. Change-Id: Ie721f35d7f5cbb486d1d3895e42f992fe4bc51bf
-rw-r--r--cryptfs_hw.c22
-rw-r--r--cryptfs_hw.h6
2 files changed, 28 insertions, 0 deletions
diff --git a/cryptfs_hw.c b/cryptfs_hw.c
index 859b108..65618df 100644
--- a/cryptfs_hw.c
+++ b/cryptfs_hw.c
@@ -66,6 +66,8 @@
#define CRYPTFS_HW_WIPE_KEY_FAILED -8
#define CRYPTFS_HW_CREATE_KEY_FAILED -7
+#define CRYPTFS_HW_ALGO_MODE_AES_XTS 0x3
+
enum cryptfs_hw_key_management_usage_type {
CRYPTFS_HW_KM_USAGE_DISK_ENCRYPTION = 0x01,
CRYPTFS_HW_KM_USAGE_FILE_ENCRYPTION = 0x02,
@@ -171,6 +173,26 @@ static int cryptfs_hw_wipe_key(enum cryptfs_hw_key_management_usage_type usage)
return ret;
}
+#ifdef QSEECOM_IOCTL_SET_ICE_INFO
+int set_ice_param(int flag)
+{
+ int qseecom_fd, ret = -1;
+ struct qseecom_ice_data_t ice_data;
+ qseecom_fd = open("/dev/qseecom", O_RDWR);
+ if (qseecom_fd < 0)
+ return ret;
+ ice_data.flag = flag;
+ ret = ioctl(qseecom_fd, QSEECOM_IOCTL_SET_ICE_INFO, &ice_data);
+ close(qseecom_fd);
+ return ret;
+}
+#else
+int set_ice_param(int flag)
+{
+ return -1;
+}
+#endif
+
static int cryptfs_hw_clear_key(enum cryptfs_hw_key_management_usage_type usage)
{
int32_t ret;
diff --git a/cryptfs_hw.h b/cryptfs_hw.h
index e857c47..65321eb 100644
--- a/cryptfs_hw.h
+++ b/cryptfs_hw.h
@@ -33,12 +33,18 @@
extern "C" {
#endif
+/*This is equivalent of MAX_CRYPTO_TYPE_NAME_LEN*/
+#define CRYPTO_ALGO_LENGTH 64
+#define START_ENC 0x1
+#define START_ENCDEC 0x3
+
int set_hw_device_encryption_key(const char*, const char*);
int update_hw_device_encryption_key(const char*, const char*, const char*);
int clear_hw_device_encryption_key();
unsigned int is_hw_disk_encryption(const char*);
int is_ice_enabled(void);
int should_use_keymaster();
+int set_ice_param(int flag);
#ifdef __cplusplus
}