tests/pkcs11/pkcs11-md5sum.c

/*
 * Copyright (C) 2014-2016  Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/*
 * Portions copyright (c) 2008 Nominet UK.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/* $Id$ */

/*
 * pkcs11-md5sum
 *
 * Prints the MD5 checksum of the standard input, using the PKCS#11 device.
 *
 * Usage:
 * pkcs11-md5sum [-m module] [-s $slot] [-n] [-p $pin]
 *  -m: PKCS#11 provider module.  This must be the full
 *      path to a shared library object implementing the
 *      PKCS#11 API for a device.
 *  -s: Slot
 *  -p: PIN
 *  -n: don't log in to the PKCS#11 device
 */

/*! \file */

#include <config.h>

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>

#include <isc/commandline.h>
#include <isc/print.h>
#include <isc/result.h>
#include <isc/types.h>

#include <pk11/pk11.h>
#include <pk11/result.h>

#if !(defined(HAVE_GETPASSPHRASE) || (defined (__SVR4) && defined (__sun)))
#define getpassphrase(x)    getpass(x)
#endif

#define BLOCKSIZE   32768

char buffer[BLOCKSIZE + 72];
char digest[16];

int
main(int argc, char *argv[]) {
    isc_result_t result;
    CK_RV rv;
    CK_SLOT_ID slot = 0;
    CK_SESSION_HANDLE hSession;
    CK_MECHANISM mech = { CKM_MD5, NULL, 0 };
    CK_ULONG len;
    pk11_context_t pctx;
    pk11_optype_t op_type = OP_DIGEST;
    char *lib_name = NULL;
    char *pin = NULL;
    int error = 0;
    isc_boolean_t logon = ISC_TRUE;
    int c, errflg = 0;
    size_t sum = 0;
    unsigned int i;

    while ((c = isc_commandline_parse(argc, argv, ":m:s:np:")) != -1) {
        switch (c) {
        case 'm':
            lib_name = isc_commandline_argument;
            break;
        case 's':
            slot = atoi(isc_commandline_argument);
            op_type = OP_ANY;
            break;
        case 'n':
            logon = ISC_FALSE;
            break;
        case 'p':
            pin = isc_commandline_argument;
            break;
        case ':':
            fprintf(stderr,
                "Option -%c requires an operand\n",
                isc_commandline_option);
            errflg++;
            break;
        case '?':
        default:
            fprintf(stderr, "Unrecognised option: -%c\n",
                isc_commandline_option);
            errflg++;
        }
    }

    if (errflg) {
        fprintf(stderr, "Usage:\n");
        fprintf(stderr,
            "\tpkcs11-md5sum [-m module] [-s slot] [-n|-p pin]\n");
        exit(1);
    }

    pk11_result_register();

    /* Initialize the CRYPTOKI library */
    if (lib_name != NULL)
        pk11_set_lib_name(lib_name);

    if (logon && pin == NULL)
        pin = getpassphrase("Enter Pin: ");

    result = pk11_get_session(&pctx, op_type, ISC_FALSE, ISC_FALSE, logon,
                  (const char *) pin, slot);
    if ((result != ISC_R_SUCCESS) &&
        (result != PK11_R_NORANDOMSERVICE) &&
        (result != PK11_R_NOAESSERVICE)) {
        fprintf(stderr, "Error initializing PKCS#11: %s\n",
            isc_result_totext(result));
        exit(1);
    }

    if (pin != NULL)
        memset(pin, 0, strlen((char *)pin));

    hSession = pctx.session;

    rv = pkcs_C_DigestInit(hSession, &mech);
    if (rv != CKR_OK) {
        fprintf(stderr, "C_DigestInit: Error = 0x%.8lX\n", rv);
        error = 1;
        goto exit_session;
    }

    for (;;) {
        size_t n;

        for (;;) {
            n = fread(buffer + sum, 1, BLOCKSIZE - sum, stdin);
            sum += n;
            if (sum == BLOCKSIZE)
                break;
            if (n == 0) {
                if (ferror(stdin)) {
                    fprintf(stderr, "fread failed\n");
                    error = 1;
                    goto exit_session;
                }
                goto partial_block;
            }
            if (feof(stdin))
                goto partial_block;
        }

        rv = pkcs_C_DigestUpdate(hSession, (CK_BYTE_PTR) buffer,
                     (CK_ULONG) BLOCKSIZE);
        if (rv != CKR_OK) {
            fprintf(stderr,
                "C_DigestUpdate: Error = 0x%.8lX\n",
                rv);
            error = 1;
            goto exit_session;
        }
    }

partial_block:
    if (sum > 0) {
        rv = pkcs_C_DigestUpdate(hSession, (CK_BYTE_PTR) buffer,
                     (CK_ULONG) sum);
        if (rv != CKR_OK) {
            fprintf(stderr,
                "C_DigestUpdate: Error = 0x%.8lX\n",
                rv);
            error = 1;
            goto exit_session;
        }
    }

    len = 16;
    rv = pkcs_C_DigestFinal(hSession, (CK_BYTE_PTR) digest, &len);
    if (rv != CKR_OK) {
        fprintf(stderr, "C_DigestFinal: Error = 0x%.8lX\n", rv);
        error = 1;
        goto exit_session;
    }
    if (len != 16) {
        fprintf(stderr, "C_DigestFinal: bad length = %lu\n", len);
        error = 1;
    }

    for (i = 0; i < 16; i++)
        printf("%02x", digest[i] & 0xff);
    printf("\n");

    exit_session:
    pk11_return_session(&pctx);
    (void) pk11_finalize();

    exit(error);
}