Merge "Add support for mocked RPMB" (8477031b) · Commits · e / os / android_system_core

trusty/storage/proxy/proxy.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,8 @@ static enum dev_type parse_dev_type(const char* dev_type_name) {
		return MMC_RPMB;
		} else if (!strcmp(dev_type_name, "virt")) {
		return VIRT_RPMB;
		} else if (!strcmp(dev_type_name, "sock")) {
		return SOCK_RPMB;
		} else {
		return UNKNOWN_RPMB;
		}

trusty/storage/proxy/rpmb.c

+29 −6

Original line number	Diff line number	Diff line
		@@ -21,6 +21,8 @@
		#include <stdlib.h>
		#include <string.h>
		#include <sys/ioctl.h>
		#include <sys/socket.h>
		#include <sys/un.h>
		#include <unistd.h>

		#include <linux/major.h>
		@@ -192,7 +194,7 @@ int rpmb_send(struct storage_msg* msg, const void* r, size_t req_len) {
		msg->result = STORAGE_ERR_GENERIC;
		goto err_response;
		}
		} else if (dev_type == VIRT_RPMB) {
		} else if ((dev_type == VIRT_RPMB) \|\| (dev_type == SOCK_RPMB)) {
		size_t payload_size = req->reliable_write_size + req->write_size;
		rc = send_virt_rpmb_req(rpmb_fd, read_buf, req->read_size, req->payload, payload_size);
		if (rc < 0) {
		@@ -234,12 +236,33 @@ int rpmb_open(const char* rpmb_devname, enum dev_type open_dev_type) {
		int rc;
		dev_type = open_dev_type;

		if (dev_type != SOCK_RPMB) {
		rc = open(rpmb_devname, O_RDWR, 0);
		if (rc < 0) {
		ALOGE("unable (%d) to open rpmb device '%s': %s\n", errno, rpmb_devname, strerror(errno));
		return rc;
		}
		rpmb_fd = rc;
		} else {
		struct sockaddr_un unaddr;
		struct sockaddr addr = (struct sockaddr )&unaddr;
		rc = socket(AF_UNIX, SOCK_STREAM, 0);
		if (rc < 0) {
		ALOGE("unable (%d) to create socket: %s\n", errno, strerror(errno));
		return rc;
		}
		rpmb_fd = rc;

		memset(&unaddr, 0, sizeof(unaddr));
		unaddr.sun_family = AF_UNIX;
		// TODO if it overflowed, bail rather than connecting?
		strncpy(unaddr.sun_path, rpmb_devname, sizeof(unaddr.sun_path)-1);
		rc = connect(rpmb_fd, addr, sizeof(unaddr));
		if (rc < 0) {
		ALOGE("unable (%d) to connect to rpmb socket '%s': %s\n", errno, rpmb_devname, strerror(errno));
		return rc;
		}
		}
		return 0;
		}

trusty/storage/proxy/rpmb.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -18,7 +18,7 @@
		#include <stdint.h>
		#include <trusty/interface/storage.h>

		enum dev_type { UNKNOWN_RPMB, MMC_RPMB, VIRT_RPMB };
		enum dev_type { UNKNOWN_RPMB, MMC_RPMB, VIRT_RPMB, SOCK_RPMB };

		int rpmb_open(const char* rpmb_devname, enum dev_type dev_type);
		int rpmb_send(struct storage_msg* msg, const void* r, size_t req_len);

trusty/utils/rpmb_dev/Android.bp

0 → 100644

+33 −0

Original line number	Diff line number	Diff line
		// Copyright (C) 2019 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.

		cc_binary {
		name: "rpmb_dev",
		vendor: true,

		srcs: [
		"rpmb_dev.c",
		],
		shared_libs: [
		"libc",
		"liblog",
		"libcrypto",
		],
		cflags: [
		"-Wall",
		"-Werror",
		],
		init_rc: [
		"rpmb_dev.rc",
		],
		}

trusty/utils/rpmb_dev/rpmb.h

0 → 100644

+58 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2015 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 __RPMB_H__
		#define __RPMB_H__

		#include <stdbool.h>
		#include <stddef.h>
		#include <stdint.h>

		struct rpmb_key {
		uint8_t byte[32];
		};

		struct rpmb_state;

		#define RPMB_BUF_SIZE 256

		/* provides */
		int rpmb_init(struct rpmb_state** statep,
		void* mmc_handle,
		const struct rpmb_key* key);
		void rpmb_uninit(struct rpmb_state* statep);
		int rpmb_read(struct rpmb_state* state,
		void* buf,
		uint16_t addr,
		uint16_t count);
		/* count must be 1 or 2, addr must be aligned */
		int rpmb_write(struct rpmb_state* state,
		const void* buf,
		uint16_t addr,
		uint16_t count,
		bool sync);

		/* needs */
		int rpmb_send(void* mmc_handle,
		void* reliable_write_buf,
		size_t reliable_write_size,
		void* write_buf,
		size_t write_buf_size,
		void* read_buf,
		size_t read_buf_size,
		bool sync);

		#endif