crypto: Remove crypto block device from encryption path (b30ac1ff) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/crypto/msm/ice.c

+55 −25

Original line number	Diff line number	Diff line
		/* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -56,6 +56,9 @@
		#define QCOM_ICE_MAX_BIST_CHECK_COUNT 100
		#define QCOM_ICE_UFS 10
		#define QCOM_ICE_SDCC 20
		#define QCOM_ICE_ENCRYPT 0x1
		#define QCOM_ICE_DECRYPT 0x2
		#define QCOM_SECT_LEN_IN_BYTE 512

		struct ice_clk_info {
		struct list_head list;
		@@ -105,6 +108,11 @@ struct ice_device {
		ktime_t ice_reset_complete_time;
		};

		static int ice_fde_flag;
		static unsigned long userdata_start;
		static unsigned long userdata_end;
		static struct ice_crypto_setting ice_data;

		static int qti_ice_setting_config(struct request *req,
		struct platform_device *pdev,
		struct ice_crypto_setting *crypto_data,
		@@ -134,19 +142,49 @@ static int qti_ice_setting_config(struct request *req,
		memcpy(&setting->crypto_data, crypto_data,
		sizeof(setting->crypto_data));

		if (rq_data_dir(req) == WRITE)
		if (rq_data_dir(req) == WRITE &&
		(ice_fde_flag & QCOM_ICE_ENCRYPT))
		setting->encr_bypass = false;
		else if (rq_data_dir(req) == READ)
		else if (rq_data_dir(req) == READ &&
		(ice_fde_flag & QCOM_ICE_DECRYPT))
		setting->decr_bypass = false;
		else {
		/* Should I say BUG_ON */
		setting->encr_bypass = true;
		setting->decr_bypass = true;
		pr_debug("%s direction unknown", __func__);
		}
		}

		return 0;
		}

		void qcom_ice_set_fde_flag(int flag)
		{
		ice_fde_flag = flag;
		pr_debug("%s read_write setting %d\n", __func__, ice_fde_flag);
		}
		EXPORT_SYMBOL(qcom_ice_set_fde_flag);

		int qcom_ice_set_fde_conf(sector_t s_sector, sector_t size,
		int index, int mode)
		{
		userdata_start = s_sector;
		userdata_end = s_sector + size;
		if (INT_MAX - s_sector < size) {
		WARN_ON(1);
		return -EINVAL;
		}
		ice_data.key_index = index;
		ice_data.algo_mode = mode;
		ice_data.key_size = ICE_CRYPTO_KEY_SIZE_256;
		ice_data.key_mode = ICE_CRYPTO_USE_LUT_SW_KEY;

		pr_debug("%s sector info set start %lu end %lu\n", __func__,
		userdata_start, userdata_end);
		return 0;
		}
		EXPORT_SYMBOL(qcom_ice_set_fde_conf);

		static int qcom_ice_enable_clocks(struct ice_device *, bool);

		@@ -1430,11 +1468,10 @@ static int qcom_ice_config_start(struct platform_device *pdev,
		struct request *req,
		struct ice_data_setting *setting, bool async)
		{
		struct ice_crypto_setting *crypto_data;
		struct ice_crypto_setting pfk_crypto_data = {0};
		union map_info *info;
		int ret = 0;
		bool is_pfe = false;
		sector_t data_size;

		if (!pdev \|\| !req) {
		pr_err("%s: Invalid params passed\n", __func__);
		@@ -1455,7 +1492,6 @@ static int qcom_ice_config_start(struct platform_device *pdev,
		/* It is not an error to have a request with no bio */
		return 0;
		}
		//pr_err("%s bio is %pK\n", __func__, req->bio);

		ret = pfk_load_key_start(req->bio, &pfk_crypto_data, &is_pfe, async);
		if (is_pfe) {
		@@ -1470,28 +1506,22 @@ static int qcom_ice_config_start(struct platform_device *pdev,
		&pfk_crypto_data, setting);
		}

		/*
		* info field in req->end_io_data could be used by mulitple dm or
		* non-dm entities. To ensure that we are running operation on dm
		* based request, check BIO_DONT_FREE flag
		*/
		if (bio_flagged(req->bio, BIO_INLINECRYPT)) {
		info = dm_get_rq_mapinfo(req);
		if (!info) {
		pr_debug("%s info not available in request\n",
		__func__);
		if (ice_fde_flag == 0)
		return 0;
		}

		crypto_data = (struct ice_crypto_setting *)info->ptr;
		if (!crypto_data) {
		pr_err("%s crypto_data not available in request\n",
		__func__);
		return -EINVAL;
		}
		if ((req->__sector >= userdata_start) &&
		(req->__sector < userdata_end)) {
		/*
		* Ugly hack to address non-block-size aligned userdata end address in
		* eMMC based devices.
		*/
		data_size = req->__data_len/QCOM_SECT_LEN_IN_BYTE;

		if ((req->__sector + data_size) > userdata_end)
		return 0;
		else
		return qti_ice_setting_config(req, pdev,
		crypto_data, setting);
		&ice_data, setting);
		}

		/*

drivers/misc/qseecom.c

+26 −1

Original line number	Diff line number	Diff line
		/*
		* QTI Secure Execution Environment Communicator (QSEECOM) driver
		*
		* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
		* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -7012,6 +7012,31 @@ static inline long qseecom_ioctl(struct file *file,
		pr_err("failed qseecom_register_listener: %d\n", ret);
		break;
		}
		case QSEECOM_IOCTL_SET_ICE_INFO: {
		struct qseecom_ice_data_t ice_data;

		ret = copy_from_user(&ice_data, argp, sizeof(ice_data));
		if (ret) {
		pr_err("copy_from_user failed\n");
		return -EFAULT;
		}
		qcom_ice_set_fde_flag(ice_data.flag);
		break;
		}

		case QSEECOM_IOCTL_SET_ENCDEC_INFO: {
		struct qseecom_encdec_conf_t conf;

		ret = copy_from_user(&conf, argp, sizeof(conf));
		if (ret) {
		pr_err("copy_from_user failed\n");
		return -EFAULT;
		}
		ret = qcom_ice_set_fde_conf(conf.start_sector, conf.fs_size,
		conf.index, conf.mode);
		break;
		}

		case QSEECOM_IOCTL_UNREGISTER_LISTENER_REQ: {
		if ((data->listener.id == 0) \|\|
		(data->type != QSEECOM_LISTENER_SERVICE)) {

include/crypto/ice.h

+3 −1

Original line number	Diff line number	Diff line
		/* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -53,6 +53,8 @@ typedef void (ice_error_cb)(void , u32 error);

		struct qcom_ice_variant_ops qcom_ice_get_variant_ops(struct device_node node);
		struct platform_device qcom_ice_get_pdevice(struct device_node node);
		void qcom_ice_set_fde_flag(int flag);
		int qcom_ice_set_fde_conf(sector_t strt, sector_t size, int idx, int mode);

		#ifdef CONFIG_CRYPTO_DEV_QCOM_ICE
		int qcom_ice_setup_ice_hw(const char *storage_type, int enable);

include/uapi/linux/qseecom.h

+16 −0

Original line number	Diff line number	Diff line
		@@ -277,6 +277,17 @@ struct qseecom_ce_info_req {
		struct qseecom_ce_pipe_entry ce_pipe_entry[MAX_CE_PIPE_PAIR_PER_UNIT];
		};

		struct qseecom_ice_data_t {
		int flag;
		};

		struct qseecom_encdec_conf_t {
		__le64 start_sector;
		size_t fs_size;
		int index;
		int mode;
		};

		#define SG_ENTRY_SZ sizeof(struct qseecom_sg_entry)
		#define SG_ENTRY_SZ_64BIT sizeof(struct qseecom_sg_entry_64bit)

		@@ -385,5 +396,10 @@ struct file;
		#define QSEECOM_IOCTL_QUERY_CE_PIPE_INFO \
		_IOWR(QSEECOM_IOC_MAGIC, 42, struct qseecom_ce_info_req)

		#define QSEECOM_IOCTL_SET_ICE_INFO \
		_IOWR(QSEECOM_IOC_MAGIC, 43, struct qseecom_ice_data_t)

		#define QSEECOM_IOCTL_SET_ENCDEC_INFO \
		_IOWR(QSEECOM_IOC_MAGIC, 44, struct qseecom_encdec_conf_t)

		#endif /* _UAPI_QSEECOM_H_ */