/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* Portions Copyright 2005 Richard Lowe */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * decrypt.c * * Implements encrypt(1) and decrypt(1) commands * * One binary performs both encrypt/decrypt operation. * * Usage: * -a algorithm mechanism name without CKM_ prefix. Case * does not matter * -k keyfile file containing key data. If not specified user is * prompted to enter key. key length > 0 is required * -i infile input file to encrypt/decrypt. If omitted, stdin used. * -o outfile output file to encrypt/decrypt. If omitted, stdout used. * if infile & outfile are same, a temp file is used for * output and infile is replaced with this file after * operation is complete * -l Display the list of algorithms * -v Display verbose information * -T tokenspec Specify a PKCS#11 token (optionally used with -K) * -K keylabel Specify the symmetric PKCS#11 token key label * * Implementation notes: * IV data - It is generated by random bytes equal to one block size. * * Encrypted output format - * - Output format version number (1) - 4 bytes in network byte order. * - Iterations used in key gen function, 4 bytes in network byte order. * - IV ('ivlen' bytes). Length is algorithm-dependent (see mech_aliases) * - Salt data used in key gen (16 bytes) * - Cipher text data (remainder of the file) */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define BUFFERSIZE (2048) /* Buffer size for reading file */ #define BLOCKSIZE (128) /* Largest guess for block size */ #define PROGRESSSIZE (BUFFERSIZE*20) /* stdin progress indicator size */ #define SUNW_ENCRYPT_FILE_VERSION 1 /* * Exit Status codes */ #ifndef EXIT_SUCCESS #define EXIT_SUCCESS 0 /* No errors */ #define EXIT_FAILURE 1 /* All errors except usage */ #endif /* EXIT_SUCCESS */ #define EXIT_USAGE 2 /* usage/syntax error */ #define ENCRYPT_NAME "encrypt" /* name of encrypt command */ #define ENCRYPT_OPTIONS "a:T:K:k:i:o:lv" /* options for encrypt */ #define DECRYPT_NAME "decrypt" /* name of decrypt command */ #define DECRYPT_OPTIONS "a:T:K:k:i:o:lv" /* options for decrypt */ /* * Structure containing info for encrypt/decrypt * command */ struct CommandInfo { char *name; /* name of the command */ char *options; /* command line options */ CK_FLAGS flags; CK_ATTRIBUTE_TYPE type; /* type of command */ /* function pointers for various operations */ CK_RV (*Init)(CK_SESSION_HANDLE, CK_MECHANISM_PTR, CK_OBJECT_HANDLE); CK_RV (*Update)(CK_SESSION_HANDLE, CK_BYTE_PTR, CK_ULONG, CK_BYTE_PTR, CK_ULONG_PTR); CK_RV (*Crypt)(CK_SESSION_HANDLE, CK_BYTE_PTR, CK_ULONG, CK_BYTE_PTR, CK_ULONG_PTR); CK_RV (*Final)(CK_SESSION_HANDLE, CK_BYTE_PTR, CK_ULONG_PTR); }; static struct CommandInfo encrypt_cmd = { ENCRYPT_NAME, ENCRYPT_OPTIONS, CKF_ENCRYPT, CKA_ENCRYPT, C_EncryptInit, C_EncryptUpdate, C_Encrypt, C_EncryptFinal }; static struct CommandInfo decrypt_cmd = { DECRYPT_NAME, DECRYPT_OPTIONS, CKF_DECRYPT, CKA_DECRYPT, C_DecryptInit, C_DecryptUpdate, C_Decrypt, C_DecryptFinal }; struct mech_alias { CK_MECHANISM_TYPE type; char *alias; CK_ULONG keysize_min; CK_ULONG keysize_max; int keysize_unit; int ivlen; boolean_t available; }; #define MECH_ALIASES_COUNT 4 static struct mech_alias mech_aliases[] = { { CKM_AES_CBC_PAD, "aes", ULONG_MAX, 0L, 8, 16, B_FALSE }, { CKM_RC4, "arcfour", ULONG_MAX, 0L, 1, 0, B_FALSE }, { CKM_DES_CBC_PAD, "des", 8, 8, 8, 8, B_FALSE }, { CKM_DES3_CBC_PAD, "3des", 24, 24, 8, 8, B_FALSE }, }; static CK_BBOOL truevalue = TRUE; static CK_BBOOL falsevalue = FALSE; static boolean_t aflag = B_FALSE; /* -a flag, required */ static boolean_t kflag = B_FALSE; /* -k flag */ static boolean_t iflag = B_FALSE; /* -i flag, use stdin if absent */ static boolean_t oflag = B_FALSE; /* -o flag, use stdout if absent */ static boolean_t lflag = B_FALSE; /* -l flag (list) */ static boolean_t vflag = B_FALSE; /* -v flag (verbose) */ static boolean_t Tflag = B_FALSE; /* -T flag (tokenspec) */ static boolean_t Kflag = B_FALSE; /* -K flag (keylabel) */ static char *keyfile = NULL; /* name of keyfile */ static char *inputfile = NULL; /* name of input file */ static char *outputfile = NULL; /* name of output file */ static char *token_label = NULL; /* name of PKCS#11 token */ static char *key_label = NULL; /* name of PKCS#11 token key label */ static int status_pos = 0; /* current position of progress bar element */ /* * function prototypes */ static void usage(struct CommandInfo *cmd); static int execute_cmd(struct CommandInfo *cmd, char *algo_str); static int crypt_multipart(struct CommandInfo *cmd, CK_SESSION_HANDLE hSession, int infd, int outfd, off_t insize); int main(int argc, char **argv) { extern char *optarg; extern int optind; char *optstr; char c; /* current getopts flag */ char *algo_str = NULL; /* algorithm string */ struct CommandInfo *cmd; char *cmdname; /* name of command */ boolean_t errflag = B_FALSE; (void) setlocale(LC_ALL, ""); #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ #endif (void) textdomain(TEXT_DOMAIN); /* * Based on command name, determine * type of command. */ cmdname = basename(argv[0]); cryptodebug_init(cmdname); if (strcmp(cmdname, encrypt_cmd.name) == 0) { cmd = &encrypt_cmd; } else if (strcmp(cmdname, decrypt_cmd.name) == 0) { cmd = &decrypt_cmd; } else { cryptoerror(LOG_STDERR, gettext( "command name must be either encrypt or decrypt")); exit(EXIT_USAGE); } optstr = cmd->options; /* Parse command line arguments */ while (!errflag && (c = getopt(argc, argv, optstr)) != -1) { switch (c) { case 'a': aflag = B_TRUE; algo_str = optarg; break; case 'k': kflag = B_TRUE; keyfile = optarg; break; case 'T': Tflag = B_TRUE; token_label = optarg; break; case 'K': Kflag = B_TRUE; key_label = optarg; break; case 'i': iflag = B_TRUE; inputfile = optarg; break; case 'o': oflag = B_TRUE; outputfile = optarg; break; case 'l': lflag = B_TRUE; break; case 'v': vflag = B_TRUE; break; default: errflag = B_TRUE; } } if (errflag || (!aflag && !lflag) || (lflag && argc > 2) || (kflag && Kflag) || (Tflag && !Kflag) || (optind < argc)) { usage(cmd); exit(EXIT_USAGE); } return (execute_cmd(cmd, algo_str)); } /* * usage message */ static void usage(struct CommandInfo *cmd) { (void) fprintf(stderr, gettext("Usage:\n")); if (cmd->type == CKA_ENCRYPT) { (void) fprintf(stderr, gettext(" encrypt -l\n")); (void) fprintf(stderr, gettext(" encrypt -a " "[-v] [-k | -K [-T ]] " "[-i ] [-o ]\n")); } else { (void) fprintf(stderr, gettext(" decrypt -l\n")); (void) fprintf(stderr, gettext(" decrypt -a " "[-v] [-k | -K [-T ]] " "[-i ] [-o ]\n")); } } /* * Print out list of algorithms in default and verbose mode */ static void algorithm_list() { int mech; (void) printf(gettext("Algorithm Keysize: Min Max (bits)\n" "------------------------------------------\n")); for (mech = 0; mech < MECH_ALIASES_COUNT; mech++) { if (mech_aliases[mech].available == B_FALSE) continue; (void) printf("%-15s", mech_aliases[mech].alias); if (mech_aliases[mech].keysize_min != UINT_MAX && mech_aliases[mech].keysize_max != 0) (void) printf(" %5lu %5lu\n", (mech_aliases[mech].keysize_min * mech_aliases[mech].keysize_unit), (mech_aliases[mech].keysize_max * mech_aliases[mech].keysize_unit)); else (void) printf("\n"); } } /* * This function will login into the token with the provided password and * find the token key object with the specified keytype and keylabel. */ static int get_token_key(CK_SESSION_HANDLE hSession, CK_KEY_TYPE keytype, char *keylabel, CK_BYTE *password, int password_len, CK_OBJECT_HANDLE *keyobj) { CK_RV rv; CK_ATTRIBUTE pTmpl[10]; CK_OBJECT_CLASS class = CKO_SECRET_KEY; CK_BBOOL true = 1; CK_BBOOL is_token = 1; CK_ULONG key_obj_count = 1; int i; CK_KEY_TYPE ckKeyType = keytype; rv = C_Login(hSession, CKU_USER, (CK_UTF8CHAR_PTR)password, (CK_ULONG)password_len); if (rv != CKR_OK) { (void) fprintf(stderr, "Cannot login to the token." " error = %s\n", pkcs11_strerror(rv)); return (-1); } i = 0; pTmpl[i].type = CKA_TOKEN; pTmpl[i].pValue = &is_token; pTmpl[i].ulValueLen = sizeof (CK_BBOOL); i++; pTmpl[i].type = CKA_CLASS; pTmpl[i].pValue = &class; pTmpl[i].ulValueLen = sizeof (class); i++; pTmpl[i].type = CKA_LABEL; pTmpl[i].pValue = keylabel; pTmpl[i].ulValueLen = strlen(keylabel); i++; pTmpl[i].type = CKA_KEY_TYPE; pTmpl[i].pValue = &ckKeyType; pTmpl[i].ulValueLen = sizeof (ckKeyType); i++; pTmpl[i].type = CKA_PRIVATE; pTmpl[i].pValue = &true; pTmpl[i].ulValueLen = sizeof (true); i++; rv = C_FindObjectsInit(hSession, pTmpl, i); if (rv != CKR_OK) { goto out; } rv = C_FindObjects(hSession, keyobj, 1, &key_obj_count); (void) C_FindObjectsFinal(hSession); out: if (rv != CKR_OK) { (void) fprintf(stderr, "Cannot retrieve key object. error = %s\n", pkcs11_strerror(rv)); return (-1); } if (key_obj_count == 0) { (void) fprintf(stderr, "Cannot find the key object.\n"); return (-1); } return (0); } /* * Execute the command. * cmd - command pointing to type of operation. * algo_str - alias of the algorithm passed. */ static int execute_cmd(struct CommandInfo *cmd, char *algo_str) { CK_RV rv; CK_ULONG slotcount; CK_SLOT_ID slotID; CK_SLOT_ID_PTR pSlotList = NULL; CK_MECHANISM_TYPE mech_type = 0; CK_MECHANISM_INFO info, kg_info; CK_MECHANISM mech; CK_SESSION_HANDLE hSession = CK_INVALID_HANDLE; CK_BYTE_PTR pkeydata = NULL; CK_BYTE salt[CK_PKCS5_PBKD2_SALT_SIZE]; CK_ULONG keysize = 0; int i, slot, mek; /* index variables */ int status; struct stat insbuf; /* stat buf for infile */ struct stat outsbuf; /* stat buf for outfile */ char tmpnam[PATH_MAX]; /* tmp file name */ CK_OBJECT_HANDLE key = (CK_OBJECT_HANDLE) 0; int infd = 0; /* input file, stdin default */ int outfd = 1; /* output file, stdout default */ char *outfilename = NULL; boolean_t errflag = B_TRUE; boolean_t inoutsame = B_FALSE; /* if both input & output are same */ CK_BYTE_PTR pivbuf = NULL_PTR; CK_ULONG ivlen = 0L; int mech_match = 0; uint32_t iterations = CK_PKCS5_PBKD2_ITERATIONS; CK_ULONG keylen; uint32_t version = SUNW_ENCRYPT_FILE_VERSION; CK_KEY_TYPE keytype; KMF_RETURN kmfrv; CK_SLOT_ID token_slot_id; if (aflag) { /* Determine if algorithm is valid */ for (mech_match = 0; mech_match < MECH_ALIASES_COUNT; mech_match++) { if (strcmp(algo_str, mech_aliases[mech_match].alias) == 0) { mech_type = mech_aliases[mech_match].type; break; } } if (mech_match == MECH_ALIASES_COUNT) { cryptoerror(LOG_STDERR, gettext("unknown algorithm -- %s"), algo_str); return (EXIT_FAILURE); } /* * Process keyfile or get the token pin if -K is specified. * * If a keyfile is provided, get the key data from * the file. Otherwise, prompt for a passphrase. The * passphrase is used as the key data. */ if (Kflag) { /* get the pin of the token */ if (token_label == NULL || !strlen(token_label)) { token_label = pkcs11_default_token(); } status = pkcs11_get_pass(token_label, (char **)&pkeydata, (size_t *)&keysize, 0, B_FALSE); } else if (kflag) { /* get the key file */ status = pkcs11_read_data(keyfile, (void **)&pkeydata, (size_t *)&keysize); } else { /* get the key from input */ status = pkcs11_get_pass(NULL, (char **)&pkeydata, (size_t *)&keysize, 0, (cmd->type == CKA_ENCRYPT) ? B_TRUE : B_FALSE); } if (status != 0 || keysize == 0L) { cryptoerror(LOG_STDERR, kflag ? gettext("invalid key.") : gettext("invalid passphrase.")); return (EXIT_FAILURE); } } bzero(salt, sizeof (salt)); /* Initialize pkcs */ rv = C_Initialize(NULL); if (rv != CKR_OK && rv != CKR_CRYPTOKI_ALREADY_INITIALIZED) { cryptoerror(LOG_STDERR, gettext("failed to initialize " "PKCS #11 framework: %s"), pkcs11_strerror(rv)); goto cleanup; } /* Get slot count */ rv = C_GetSlotList(0, NULL_PTR, &slotcount); if (rv != CKR_OK || slotcount == 0) { cryptoerror(LOG_STDERR, gettext( "failed to find any cryptographic provider," "please check with your system administrator: %s"), pkcs11_strerror(rv)); goto cleanup; } /* Found at least one slot, allocate memory for slot list */ pSlotList = malloc(slotcount * sizeof (CK_SLOT_ID)); if (pSlotList == NULL_PTR) { int err = errno; cryptoerror(LOG_STDERR, gettext("malloc: %s"), strerror(err)); goto cleanup; } /* Get the list of slots */ if ((rv = C_GetSlotList(0, pSlotList, &slotcount)) != CKR_OK) { cryptoerror(LOG_STDERR, gettext( "failed to find any cryptographic provider," "please check with your system administrator: %s"), pkcs11_strerror(rv)); goto cleanup; } if (lflag) { /* Iterate through slots */ for (slot = 0; slot < slotcount; slot++) { /* Iterate through each mechanism */ for (mek = 0; mek < MECH_ALIASES_COUNT; mek++) { rv = C_GetMechanismInfo(pSlotList[slot], mech_aliases[mek].type, &info); if (rv != CKR_OK) continue; /* * Set to minimum/maximum key sizes assuming * the values available are not 0. */ if (info.ulMinKeySize && (info.ulMinKeySize < mech_aliases[mek].keysize_min)) mech_aliases[mek].keysize_min = info.ulMinKeySize; if (info.ulMaxKeySize && (info.ulMaxKeySize > mech_aliases[mek].keysize_max)) mech_aliases[mek].keysize_max = info.ulMaxKeySize; mech_aliases[mek].available = B_TRUE; } } algorithm_list(); errflag = B_FALSE; goto cleanup; } /* * Find a slot with matching mechanism * * If -K is specified, we find the slot id for the token first, then * check if the slot supports the algorithm. */ i = 0; if (Kflag) { kmfrv = kmf_pk11_token_lookup(NULL, token_label, &token_slot_id); if (kmfrv != KMF_OK) { cryptoerror(LOG_STDERR, gettext("no matching PKCS#11 token")); errflag = B_TRUE; goto cleanup; } rv = C_GetMechanismInfo(token_slot_id, mech_type, &info); if (rv == CKR_OK && (info.flags & cmd->flags)) slotID = token_slot_id; else i = slotcount; } else { for (i = 0; i < slotcount; i++) { slotID = pSlotList[i]; rv = C_GetMechanismInfo(slotID, mech_type, &info); if (rv != CKR_OK) { continue; /* to the next slot */ } else { /* * If the slot support the crypto, also * make sure it supports the correct * key generation mech if needed. * * We need PKCS5 when RC4 is used or * when the key is entered on cmd line. */ if ((info.flags & cmd->flags) && (mech_type == CKM_RC4) || (keyfile == NULL)) { rv = C_GetMechanismInfo(slotID, CKM_PKCS5_PBKD2, &kg_info); if (rv == CKR_OK) break; } else if (info.flags & cmd->flags) { break; } } } } /* Show error if no matching mechanism found */ if (i == slotcount) { cryptoerror(LOG_STDERR, gettext("no cryptographic provider was " "found for this algorithm -- %s"), algo_str); goto cleanup; } /* Open a session */ rv = C_OpenSession(slotID, CKF_SERIAL_SESSION, NULL_PTR, NULL, &hSession); if (rv != CKR_OK) { cryptoerror(LOG_STDERR, gettext("can not open PKCS #11 session: %s"), pkcs11_strerror(rv)); goto cleanup; } /* * Generate IV data for encrypt. */ ivlen = mech_aliases[mech_match].ivlen; if ((pivbuf = malloc((size_t)ivlen)) == NULL) { int err = errno; cryptoerror(LOG_STDERR, gettext("malloc: %s"), strerror(err)); goto cleanup; } if (cmd->type == CKA_ENCRYPT) { if ((pkcs11_random_data((void *)pivbuf, mech_aliases[mech_match].ivlen)) != 0) { cryptoerror(LOG_STDERR, gettext( "Unable to generate random " "data for initialization vector.")); goto cleanup; } } /* * Create the key object */ rv = pkcs11_mech2keytype(mech_type, &keytype); if (rv != CKR_OK) { cryptoerror(LOG_STDERR, gettext("unable to find key type for algorithm.")); goto cleanup; } /* Open input file */ if (iflag) { if ((infd = open(inputfile, O_RDONLY | O_NONBLOCK)) == -1) { cryptoerror(LOG_STDERR, gettext( "can not open input file %s"), inputfile); goto cleanup; } /* Get info on input file */ if (fstat(infd, &insbuf) == -1) { cryptoerror(LOG_STDERR, gettext( "can not stat input file %s"), inputfile); goto cleanup; } } /* * Prepare output file * If the input & output file are same, * the output is written to a temp * file first, then renamed to the original file * after the crypt operation */ inoutsame = B_FALSE; if (oflag) { outfilename = outputfile; if ((stat(outputfile, &outsbuf) != -1) && (insbuf.st_ino == outsbuf.st_ino)) { char *dir; /* create temp file on same dir */ dir = dirname(outputfile); (void) snprintf(tmpnam, sizeof (tmpnam), "%s/encrXXXXXX", dir); outfilename = tmpnam; if ((outfd = mkstemp(tmpnam)) == -1) { cryptoerror(LOG_STDERR, gettext( "cannot create temp file")); goto cleanup; } inoutsame = B_TRUE; } else { /* Create file for output */ if ((outfd = open(outfilename, O_CREAT|O_WRONLY|O_TRUNC, 0644)) == -1) { cryptoerror(LOG_STDERR, gettext( "cannot open output file %s"), outfilename); goto cleanup; } } } /* * Read the version number from the head of the file * to know how to interpret the data that follows. */ if (cmd->type == CKA_DECRYPT) { if (read(infd, &version, sizeof (version)) != sizeof (version)) { cryptoerror(LOG_STDERR, gettext( "failed to get format version from " "input file.")); goto cleanup; } /* convert to host byte order */ version = ntohl(version); switch (version) { case 1: /* * Version 1 output format: * - Output format version 1 (4 bytes) * - Iterations used in key gen function (4 bytes) * - IV ('ivlen' bytes). The length algorithm-dependent * - Salt data used in key gen (16 bytes) * - Cipher text data (remainder of the file) * * An encrypted file has IV as first block (0 or * more bytes depending on mechanism) followed * by cipher text. Get the IV from the encrypted * file. */ /* * Read iteration count and salt data. */ if (read(infd, &iterations, sizeof (iterations)) != sizeof (iterations)) { cryptoerror(LOG_STDERR, gettext( "failed to get iterations from " "input file.")); goto cleanup; } /* convert to host byte order */ iterations = ntohl(iterations); if (ivlen > 0 && read(infd, pivbuf, ivlen) != ivlen) { cryptoerror(LOG_STDERR, gettext( "failed to get initialization " "vector from input file.")); goto cleanup; } if (read(infd, salt, sizeof (salt)) != sizeof (salt)) { cryptoerror(LOG_STDERR, gettext( "failed to get salt data from " "input file.")); goto cleanup; } break; default: cryptoerror(LOG_STDERR, gettext( "Unrecognized format version read from " "input file - expected %d, got %d."), SUNW_ENCRYPT_FILE_VERSION, version); goto cleanup; break; } } /* * If Kflag is set, let's find the token key now. * * If Kflag is not set and if encrypting, we need some random * salt data to create the key. If decrypting, * the salt should come from head of the file * to be decrypted. */ if (Kflag) { rv = get_token_key(hSession, keytype, key_label, pkeydata, keysize, &key); if (rv != CKR_OK) { cryptoerror(LOG_STDERR, gettext( "Can not find the token key")); goto cleanup; } else { goto do_crypto; } } else if (cmd->type == CKA_ENCRYPT) { rv = pkcs11_random_data((void *)salt, sizeof (salt)); if (rv != 0) { cryptoerror(LOG_STDERR, gettext("unable to generate random " "data for key salt.")); goto cleanup; } } /* * If key input is read from a file, treat it as * raw key data, unless it is to be used with RC4, * in which case it must be used to generate a pkcs5 * key to address security concerns with RC4 keys. */ if (kflag && keyfile != NULL && keytype != CKK_RC4) { /* XXX : why wasn't SUNW_C_KeyToObject used here? */ CK_OBJECT_CLASS objclass = CKO_SECRET_KEY; CK_ATTRIBUTE template[5]; int nattr = 0; template[nattr].type = CKA_CLASS; template[nattr].pValue = &objclass; template[nattr].ulValueLen = sizeof (objclass); nattr++; template[nattr].type = CKA_KEY_TYPE; template[nattr].pValue = &keytype; template[nattr].ulValueLen = sizeof (keytype); nattr++; template[nattr].type = cmd->type; template[nattr].pValue = &truevalue; template[nattr].ulValueLen = sizeof (truevalue); nattr++; template[nattr].type = CKA_TOKEN; template[nattr].pValue = &falsevalue; template[nattr].ulValueLen = sizeof (falsevalue); nattr++; template[nattr].type = CKA_VALUE; template[nattr].pValue = pkeydata; template[nattr].ulValueLen = keysize; nattr++; rv = C_CreateObject(hSession, template, nattr, &key); } else { /* * If the encryption type has a fixed key length, * then its not necessary to set the key length * parameter when generating the key. */ if (keytype == CKK_DES || keytype == CKK_DES3) keylen = 0; else keylen = 16; /* * Generate a cryptographically secure key using * the key read from the file given (-k keyfile) or * the passphrase entered by the user. */ rv = pkcs11_PasswdToPBKD2Object(hSession, (char *)pkeydata, (size_t)keysize, (void *)salt, sizeof (salt), iterations, keytype, keylen, cmd->flags, &key); } if (rv != CKR_OK) { cryptoerror(LOG_STDERR, gettext( "failed to generate a key: %s"), pkcs11_strerror(rv)); goto cleanup; } do_crypto: /* Setup up mechanism */ mech.mechanism = mech_type; mech.pParameter = (CK_VOID_PTR)pivbuf; mech.ulParameterLen = ivlen; if ((rv = cmd->Init(hSession, &mech, key)) != CKR_OK) { cryptoerror(LOG_STDERR, gettext( "failed to initialize crypto operation: %s"), pkcs11_strerror(rv)); goto cleanup; } /* Write the version header encrypt command */ if (cmd->type == CKA_ENCRYPT) { /* convert to network order for storage */ uint32_t netversion = htonl(version); uint32_t netiter; if (write(outfd, &netversion, sizeof (netversion)) != sizeof (netversion)) { cryptoerror(LOG_STDERR, gettext( "failed to write version number " "to output file.")); goto cleanup; } /* * Write the iteration and salt data, even if they * were not used to generate a key. */ netiter = htonl(iterations); if (write(outfd, &netiter, sizeof (netiter)) != sizeof (netiter)) { cryptoerror(LOG_STDERR, gettext( "failed to write iterations to output")); goto cleanup; } if (ivlen > 0 && write(outfd, pivbuf, ivlen) != ivlen) { cryptoerror(LOG_STDERR, gettext( "failed to write initialization vector " "to output")); goto cleanup; } if (write(outfd, salt, sizeof (salt)) != sizeof (salt)) { cryptoerror(LOG_STDERR, gettext( "failed to write salt data to output")); goto cleanup; } } if (crypt_multipart(cmd, hSession, infd, outfd, insbuf.st_size) == -1) { goto cleanup; } errflag = B_FALSE; /* * Clean up */ cleanup: /* Clear the key data, so others cannot snoop */ if (pkeydata != NULL) { bzero(pkeydata, keysize); free(pkeydata); pkeydata = NULL; } /* Destroy key object */ if (Kflag != B_FALSE && key != (CK_OBJECT_HANDLE) 0) { (void) C_DestroyObject(hSession, key); } /* free allocated memory */ if (pSlotList != NULL) free(pSlotList); if (pivbuf != NULL) free(pivbuf); /* close all the files */ if (iflag && (infd != -1)) (void) close(infd); if (oflag && (outfd != -1)) (void) close(outfd); /* rename tmp output to input file */ if (inoutsame) { if (rename(outfilename, inputfile) == -1) { (void) unlink(outfilename); cryptoerror(LOG_STDERR, gettext("rename failed.")); } } /* If error occurred, remove the output file */ if (errflag && outfilename != NULL) { (void) unlink(outfilename); } /* close pkcs11 session */ if (hSession != CK_INVALID_HANDLE) (void) C_CloseSession(hSession); (void) C_Finalize(NULL); return (errflag); } /* * Function for printing progress bar when the verbose flag * is set. * * The vertical bar is printed at 25, 50, and 75% complete. * * The function is passed the number of positions on the screen it needs to * advance and loops. */ static void print_status(int pos_to_advance) { while (pos_to_advance > 0) { switch (status_pos) { case 0: (void) fprintf(stderr, gettext("[")); break; case 19: case 39: case 59: (void) fprintf(stderr, gettext("|")); break; default: (void) fprintf(stderr, gettext(".")); } pos_to_advance--; status_pos++; } } /* * Encrypt/Decrypt in multi part. * * This function reads the input file (infd) and writes the * encrypted/decrypted output to file (outfd). * * cmd - pointing to commandinfo * hSession - pkcs session * infd - input file descriptor * outfd - output file descriptor * */ static int crypt_multipart(struct CommandInfo *cmd, CK_SESSION_HANDLE hSession, int infd, int outfd, off_t insize) { CK_RV rv; CK_ULONG resultlen; CK_ULONG resultbuflen; CK_BYTE_PTR resultbuf; CK_ULONG datalen; CK_BYTE databuf[BUFFERSIZE]; CK_BYTE outbuf[BUFFERSIZE+BLOCKSIZE]; CK_ULONG status_index = 0; /* current total file size read */ float status_last = 0.0; /* file size of last element used */ float status_incr = 0.0; /* file size element increments */ int pos; /* # of progress bar elements to be print */ ssize_t nread; boolean_t errflag = B_FALSE; datalen = sizeof (databuf); resultbuflen = sizeof (outbuf); resultbuf = outbuf; /* Divide into 79 increments for progress bar element spacing */ if (vflag && iflag) status_incr = (insize / 79.0); while ((nread = read(infd, databuf, datalen)) > 0) { /* Start with the initial buffer */ resultlen = resultbuflen; rv = cmd->Update(hSession, databuf, (CK_ULONG)nread, resultbuf, &resultlen); /* Need a bigger buffer? */ if (rv == CKR_BUFFER_TOO_SMALL) { /* free the old buffer */ if (resultbuf != NULL && resultbuf != outbuf) { bzero(resultbuf, resultbuflen); free(resultbuf); } /* allocate a new big buffer */ if ((resultbuf = malloc((size_t)resultlen)) == NULL) { int err = errno; cryptoerror(LOG_STDERR, gettext("malloc: %s"), strerror(err)); return (-1); } resultbuflen = resultlen; /* Try again with bigger buffer */ rv = cmd->Update(hSession, databuf, (CK_ULONG)nread, resultbuf, &resultlen); } if (rv != CKR_OK) { errflag = B_TRUE; cryptoerror(LOG_STDERR, gettext( "crypto operation failed: %s"), pkcs11_strerror(rv)); break; } /* write the output */ if (write(outfd, resultbuf, resultlen) != resultlen) { cryptoerror(LOG_STDERR, gettext( "failed to write result to output file.")); errflag = B_TRUE; break; } if (vflag) { status_index += resultlen; /* * If input is from stdin, do a our own progress bar * by printing periods at a pre-defined increment * until the file is done. */ if (!iflag) { /* * Print at least 1 element in case the file * is small, it looks better than nothing. */ if (status_pos == 0) { (void) fprintf(stderr, gettext(".")); status_pos = 1; } if ((status_index - status_last) > (PROGRESSSIZE)) { (void) fprintf(stderr, gettext(".")); status_last = status_index; } continue; } /* Calculate the number of elements need to be print */ if (insize <= BUFFERSIZE) pos = 78; else pos = (int)((status_index - status_last) / status_incr); /* Add progress bar elements, if needed */ if (pos > 0) { print_status(pos); status_last += (status_incr * pos); } } } /* Print verbose completion */ if (vflag) { if (iflag) (void) fprintf(stderr, "]"); (void) fprintf(stderr, "\n%s\n", gettext("Done.")); } /* Error in reading */ if (nread == -1) { cryptoerror(LOG_STDERR, gettext( "error reading from input file")); errflag = B_TRUE; } if (!errflag) { /* Do the final part */ rv = cmd->Final(hSession, resultbuf, &resultlen); if (rv == CKR_OK) { /* write the output */ if (write(outfd, resultbuf, resultlen) != resultlen) { cryptoerror(LOG_STDERR, gettext( "failed to write result to output file.")); errflag = B_TRUE; } } else { cryptoerror(LOG_STDERR, gettext( "crypto operation failed: %s"), pkcs11_strerror(rv)); errflag = B_TRUE; } } if (resultbuf != NULL && resultbuf != outbuf) { bzero(resultbuf, resultbuflen); free(resultbuf); } if (errflag) { return (-1); } else { return (0); } }