/* * mgmt-cli.c * --------- * Management CLI code. * * Copyright (c) 2016-2017, NORDUnet A/S All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of the NORDUnet nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include /* Rename both CMSIS HAL_OK and libhal HAL_OK to disambiguate */ #define HAL_OK CMSIS_HAL_OK #include "stm-init.h" #include "stm-uart.h" #include "stm-led.h" #include "mgmt-cli.h" #include "mgmt-fpga.h" #include "mgmt-misc.h" #include "mgmt-show.h" #include "mgmt-test.h" #include "mgmt-keystore.h" #include "mgmt-masterkey.h" #undef HAL_OK #define HAL_OK LIBHAL_OK #include "hal.h" #undef HAL_OK #ifndef CLI_UART_RECVBUF_SIZE #define CLI_UART_RECVBUF_SIZE 256 #endif typedef struct { int ridx; volatile int widx; mgmt_cli_dma_state_t rx_state; uint8_t buf[CLI_UART_RECVBUF_SIZE]; } ringbuf_t; inline void ringbuf_init(ringbuf_t *rb) { memset(rb, 0, sizeof(*rb)); } /* return number of characters read */ inline int ringbuf_read_char(ringbuf_t *rb, uint8_t *c) { if (rb->ridx != rb->widx) { *c = rb->buf[rb->ridx]; if (++rb->ridx >= sizeof(rb->buf)) rb->ridx = 0; return 1; } return 0; } inline void ringbuf_write_char(ringbuf_t *rb, uint8_t c) { rb->buf[rb->widx] = c; if (++rb->widx >= sizeof(rb->buf)) rb->widx = 0; } static ringbuf_t uart_ringbuf; /* current character received from UART */ static uint8_t uart_rx; /* Callback for HAL_UART_Receive_DMA(). */ void HAL_UART1_RxCpltCallback(UART_HandleTypeDef *huart) { ringbuf_write_char(&uart_ringbuf, uart_rx); } static void uart_cli_print(struct cli_def *cli __attribute__ ((unused)), const char *buf) { char crlf[] = "\r\n"; uart_send_string2(STM_UART_MGMT, buf); uart_send_string2(STM_UART_MGMT, crlf); } static ssize_t uart_cli_read(struct cli_def *cli __attribute__ ((unused)), void *buf, size_t count) { for (int i = 0; i < count; ++i) { while (ringbuf_read_char(&uart_ringbuf, (uint8_t *)(buf + i)) == 0) { } } return (ssize_t)count; } static ssize_t uart_cli_write(struct cli_def *cli __attribute__ ((unused)), const void *buf, size_t count) { uart_send_bytes(STM_UART_MGMT, (uint8_t *) buf, count); return (ssize_t)count; } int control_mgmt_uart_dma_rx(mgmt_cli_dma_state_t state) { if (state == DMA_RX_START) { if (uart_ringbuf.rx_state != DMA_RX_START) { ringbuf_init(&uart_ringbuf); HAL_UART_Receive_DMA(&huart_mgmt, &uart_rx, 1); uart_ringbuf.rx_state = DMA_RX_START; } return 1; } else if (state == DMA_RX_STOP) { if (HAL_UART_DMAStop(&huart_mgmt) != CMSIS_HAL_OK) return 0; uart_ringbuf.rx_state = DMA_RX_STOP; return 1; } return 0; } static struct cli_def *mgmt_cli_init(void) { struct cli_def *cli; cli = cli_init(); cli_read_callback(cli, uart_cli_read); cli_write_callback(cli, uart_cli_write); cli_print_callback(cli, uart_cli_print); cli_set_banner(cli, "Cryptech Alpha test CLI"); cli_set_hostname(cli, "cryptech"); return cli; } hal_user_t user; static int check_auth(const char *username, const char *password) { if (strcmp(username, "ct") != 0) return CLI_ERROR; if (strcmp(password, "ct") != 0) return CLI_ERROR; return CLI_OK; } int cli_main(void) { struct cli_def *cli; cli = mgmt_cli_init(); cli_set_auth_callback(cli, check_auth); configure_cli_show(cli); configure_cli_fpga(cli); configure_cli_misc(cli); configure_cli_test(cli); configure_cli_keystore(cli); configure_cli_masterkey(cli); while (1) { control_mgmt_uart_dma_rx(DMA_RX_START); cli_loop(cli, 0); /* cli_loop returns when the user enters 'quit' or 'exit' */ cli_print(cli, "\nLogging out...\n"); user = HAL_USER_NONE; } /*NOTREACHED*/ return -1; } 1'>61 62 63 64 65 66 67 68 69 70 71 72 
/*
 * novena-eim.h
 * ------------
 * This module contains the userland magic to set up and use the EIM bus.
 *
 *
 * Author: Pavel Shatov
 * Copyright (c) 2014-2015, NORDUnet A/S All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the NORDUnet nor the names of its contributors may
 *   be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _NOVENA_EIM_H_
#define _NOVENA_EIM_H_

#include <stdint.h>
#include <sys/types.h>  /* Required for off_t, at least on Debian Wheezy. */

#define EIM_BASE_ADDR 0x08000000

/*
 * Set up EIM bus.
 * Returns 0 on success, -1 on failure.
 */

int  eim_setup(void);

/*
 * Write a 32-bit word to EIM.
 * If EIM is not set up correctly, this will abort with a bus error.
 */

void eim_write_32(off_t, uint32_t *);

/*
 * Read a 32-bit word from EIM.
 * If EIM is not set up correctly, this will abort with a bus error.
 */

void eim_read_32(off_t, uint32_t *);

#endif /* _NOVENA_EIM_H_ */

/*
 * Local variables:
 * indent-tabs-mode: nil
 * End:
 */
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