/* p5_crpt2.c */ /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL * project 1999. */ /* ==================================================================== * Copyright (c) 1999 The OpenSSL Project. 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. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * licensing@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #include #include #include "cryptlib.h" #if !defined(OPENSSL_NO_HMAC) && !defined(OPENSSL_NO_SHA) #include #include #include /* set this to print out info about the keygen algorithm */ /* #define DEBUG_PKCS5V2 */ #ifdef DEBUG_PKCS5V2 static void h__dump (const unsigned char *p, int len); #endif /* This is an implementation of PKCS#5 v2.0 password based encryption key * derivation function PBKDF2 using the only currently defined function HMAC * with SHA1. Verified against test vectors posted by Peter Gutmann * to the PKCS-TNG mailing list. */ int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen, const unsigned char *salt, int saltlen, int iter, int keylen, unsigned char *out) { unsigned char digtmp[SHA_DIGEST_LENGTH], *p, itmp[4]; int cplen, j, k, tkeylen; unsigned long i = 1; HMAC_CTX hctx; HMAC_CTX_init(&hctx); p = out; tkeylen = keylen; if(!pass) passlen = 0; else if(passlen == -1) passlen = strlen(pass); while(tkeylen) { if(tkeylen > SHA_DIGEST_LENGTH) cplen = SHA_DIGEST_LENGTH; else cplen = tkeylen; /* We are unlikely to ever use more than 256 blocks (5120 bits!) * but just in case... */ itmp[0] = (unsigned char)((i >> 24) & 0xff); itmp[1] = (unsigned char)((i >> 16) & 0xff); itmp[2] = (unsigned char)((i >> 8) & 0xff); itmp[3] = (unsigned char)(i & 0xff); HMAC_Init_ex(&hctx, pass, passlen, EVP_sha1(), NULL); HMAC_Update(&hctx, salt, saltlen); HMAC_Update(&hctx, itmp, 4); HMAC_Final(&hctx, digtmp, NULL); memcpy(p, digtmp, cplen); for(j = 1; j < iter; j++) { HMAC(EVP_sha1(), pass, passlen, digtmp, SHA_DIGEST_LENGTH, digtmp, NULL); for(k = 0; k < cplen; k++) p[k] ^= digtmp[k]; } tkeylen-= cplen; i++; p+= cplen; } HMAC_CTX_cleanup(&hctx); #ifdef DEBUG_PKCS5V2 fprintf(stderr, "Password:\n"); h__dump (pass, passlen); fprintf(stderr, "Salt:\n"); h__dump (salt, saltlen); fprintf(stderr, "Iteration count %d\n", iter); fprintf(stderr, "Key:\n"); h__dump (out, keylen); #endif return 1; } #ifdef DO_TEST main() { unsigned char out[4]; unsigned char salt[] = {0x12, 0x34, 0x56, 0x78}; PKCS5_PBKDF2_HMAC_SHA1("password", -1, salt, 4, 5, 4, out); fprintf(stderr, "Out %02X %02X %02X %02X\n", out[0], out[1], out[2], out[3]); } #endif /* Now the key derivation function itself. This is a bit evil because * it has to check the ASN1 parameters are valid: and there are quite a * few of them... */ int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, ASN1_TYPE *param, const EVP_CIPHER *c, const EVP_MD *md, int en_de) { unsigned char *salt, key[EVP_MAX_KEY_LENGTH]; const unsigned char *pbuf; int saltlen, iter, plen; unsigned int keylen; PBE2PARAM *pbe2 = NULL; const EVP_CIPHER *cipher; PBKDF2PARAM *kdf = NULL; if (param == NULL || param->type != V_ASN1_SEQUENCE || param->value.sequence == NULL) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); return 0; } pbuf = param->value.sequence->data; plen = param->value.sequence->length; if(!(pbe2 = d2i_PBE2PARAM(NULL, &pbuf, plen))) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); return 0; } /* See if we recognise the key derivation function */ if(OBJ_obj2nid(pbe2->keyfunc->algorithm) != NID_id_pbkdf2) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION); goto err; } /* lets see if we recognise the encryption algorithm. */ cipher = EVP_get_cipherbyname( OBJ_nid2sn(OBJ_obj2nid(pbe2->encryption->algorithm))); if(!cipher) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, EVP_R_UNSUPPORTED_CIPHER); goto err; } /* Fixup cipher based on AlgorithmIdentifier */ EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, en_de); if(EVP_CIPHER_asn1_to_param(ctx, pbe2->encryption->parameter) < 0) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, EVP_R_CIPHER_PARAMETER_ERROR); goto err; } keylen = EVP_CIPHER_CTX_key_length(ctx); OPENSSL_assert(keylen <= sizeof key); /* Now decode key derivation function */ if(!pbe2->keyfunc->parameter || (pbe2->keyfunc->parameter->type != V_ASN1_SEQUENCE)) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); goto err; } pbuf = pbe2->keyfunc->parameter->value.sequence->data; plen = pbe2->keyfunc->parameter->value.sequence->length; if(!(kdf = d2i_PBKDF2PARAM(NULL, &pbuf, plen)) ) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); goto err; } PBE2PARAM_free(pbe2); pbe2 = NULL; /* Now check the parameters of the kdf */ if(kdf->keylength && (ASN1_INTEGER_get(kdf->keylength) != (int)keylen)){ EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, EVP_R_UNSUPPORTED_KEYLENGTH); goto err; } if(kdf->prf && (OBJ_obj2nid(kdf->prf->algorithm) != NID_hmacWithSHA1)) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, EVP_R_UNSUPPORTED_PRF); goto err; } if(kdf->salt->type != V_ASN1_OCTET_STRING) { EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, EVP_R_UNSUPPORTED_SALT_TYPE); goto err; } /* it seems that its all OK */ salt = kdf->salt->value.octet_string->data; saltlen = kdf->salt->value.octet_string->length; iter = ASN1_INTEGER_get(kdf->iter); PKCS5_PBKDF2_HMAC_SHA1(pass, passlen, salt, saltlen, iter, keylen, key); EVP_CipherInit_ex(ctx, NULL, NULL, key, NULL, en_de); OPENSSL_cleanse(key, keylen); PBKDF2PARAM_free(kdf); return 1; err: PBE2PARAM_free(pbe2); PBKDF2PARAM_free(kdf); return 0; } #ifdef DEBUG_PKCS5V2 static void h__dump (const unsigned char *p, int len) { for (; len --; p++) fprintf(stderr, "%02X ", *p); fprintf(stderr, "\n"); } #endif #endif 177 178 179 180 181 182 183 184 185 186 187 188 189 190 
# $Id$
#
# Copyright (C) 2012 Internet Systems Consortium, Inc. ("ISC")
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.

"""
Archive rcynic output in a Subversion repository.
"""

import subprocess
import argparse
import datetime
import fcntl
import glob
import os

try:
  from lxml.etree            import ElementTree
except ImportError:
  from xml.etree.ElementTree import ElementTree


mime_types = (
  ("html", "application/xhtml+xml"),
  ("cer",  "application/pkix-cert"),
  ("crl",  "application/pkix-crl"),
  ("mft",  "application/rpki-manifest"),
  ("mnf",  "application/rpki-manifest"),
  ("roa",  "application/rpki-roa"),
  ("gbr",  "application/rpki-ghostbusters"))


def run(*cmd, **kwargs):
  """
  Run a program, displaying timing data when appropriate.
  """

  t = datetime.datetime.utcnow()
  subprocess.check_call(cmd, **kwargs)
  if args.show_timing:
    now = datetime.datetime.utcnow()
    print now, (now - t), " ".join(cmd)


def runxml(*cmd):
  """

  Run a program which produces XML output, displaying timing data when
  appropriate and returning an ElementTree constructed from the
  program's output.
  """
  t = datetime.datetime.utcnow()
  p = subprocess.Popen(cmd, stdout = subprocess.PIPE)
  x = ElementTree(file = p.stdout)
  s = p.wait()
  if s:
    raise subprocess.CalledProcessError(s, cmd[0])
  if args.show_timing:
    now = datetime.datetime.utcnow()
    print now, (now - t), " ".join(cmd)
  return x


# Main program.

parser = argparse.ArgumentParser(description = __doc__)

parser.add_argument("--show_timing", action = "store_true", help = \
                    """
                    Show timing data on programs we run.
                    """)

parser.add_argument("--verbatim", action = "store_true", help = \
                    """
                    Whether to archive rcynic's data output exactly as
                    rcynic writes it or map it into a directory
                    structure which makes more sense when used with
                    Subversion.  True means archive exactly as rcynic
                    writes it, interpreting file and directory names
                    as rsync would, transient directories and all.
                    False means map the current authenticated/ tree in
                    rcynic's output to a stable authenticated/ subtree
                    in the subversion repository, with file and
                    directory names from the command line shorted to
                    their last component.
                    """)

parser.add_argument("--lockfile", default = "rcynic-svn.lock", help = \
                    """
                    Lock file to to prevent multiple copies of this
                    program (eg, running under cron) from stepping on
                    each other while modifying the working directory.
                    """)

parser.add_argument("files_to_archive", nargs = "*", help = \
                    """
                    Files to archive using Subversion.  If omitted, we
                    assume that some other process has already
                    modified the Subversion working directory.
                    """)

parser.add_argument("working_directory", help = \
                    """
                    Subversion working directory to use (must already
                    exist).
                    """)

args = parser.parse_args()

if args.show_timing:
  t0 = datetime.datetime.utcnow()
  print t0, "Starting"

# Lock out other instances of this program.  We may want some more
# sophsiticated approach when combining this with other programs, but
# this should minimize the risk of multiple copies of this program
# trying to modify the same subversion working directory at the same
# time and messing each other up.  We leave the lock file in place
# because doing so removes a potential race condition.

lock = os.open("cronjob.lock", os.O_RDONLY | os.O_CREAT | os.O_NONBLOCK, 0666)
fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)

# Make sure working tree is up to date.

run("svn", "update", "--quiet", args.working_directory)

# Copy rcynic's output as appropriate.

if args.files_to_archive:

  if args.verbatim:
    cmd = ["rsync", "--archive", "--quiet", "--delete"]
    cmd.extend(args.files_to_archive)
    cmd.append(args.working_directory)
    run(*cmd)

  else:
    for src in args.files_to_archive:
      cmd = ["rsync", "--archive", "--quiet", "--delete", "--copy-links"]
      cmd.append(src.rstrip("/"))
      cmd.append(args.working_directory.rstrip("/") + "/")
      run(*cmd)

# Ask Subversion to add any new files, trying hard to get the MIME
# types right.

cmd = ["svn", "add", "--quiet", "--force", "--auto-props"]

for fn2, mime_type in mime_types:
  cmd.append("--config-option")
  cmd.append("config:auto-props:*.%s=svn:mime-type=%s" % (fn2, mime_type))

cmd.append(".")

run(*cmd, cwd = args.working_directory)

# Parse XML version of Subversion's status output to figure out what
# files have been deleted, and tell Subversion that we deleted them
# intentionally.

missing = sorted(entry.get("path")
                 for entry in runxml("svn", "status", "--xml", args.working_directory).find("target").findall("entry")
                 if entry.find("wc-status").get("item") == "missing")
deleted = []

for path in missing:
  if not any(path.startswith(r) for r in deleted):
    run("svn", "delete", "--quiet", path)
    deleted.append(path + "/")

# Commit our changes and update the working tree.

run("svn", "commit", "--quiet", "--message", "Auto update.", args.working_directory)
run("svn", "update", "--quiet", args.working_directory)

if args.show_timing:
  now = datetime.datetime.utcnow()
  print now, now - t0, "total runtime"