fips/fipsld

   1 #!/bin/sh -e
   2 #
   3 # Copyright (c) 2005-2007 The OpenSSL Project.
   4 #
   5 # Depending on output file name, the script either embeds fingerprint
   6 # into libcrypto.so or static application. "Static" refers to static
   7 # libcrypto.a, not [necessarily] application per se.
   8 #
   9 # Even though this script is called fipsld, it expects C compiler
  10 # command line syntax and $FIPSLD_CC or $CC environment variable set
  11 # and can even be used to compile source files.
  12
  13 #set -x
  14
  15 CC=${FIPSLD_CC:-${CC}}
  16 [ -n "${CC}" ] || { echo '$CC is not defined'; exit 1; }
  17
  18 # Initially -c wasn't intended to be interpreted here, but it might
  19 # make life easier for those who want to build FIPS-ified applications
  20 # with minimal [if any] modifications to their Makefiles...
  21 (   while [ "x$1" != "x" -a "x$1" != "x-c" -a "x$1" != "x-E" ]; do shift; done;
  22     [ $# -ge 1 ]
  23 ) && exec ${CC} "$@"
  24
  25 TARGET=`(while [ "x$1" != "x" -a "x$1" != "x-o" ]; do shift; done; echo $2)`
  26
  27 # If using an auto-tooled (autoconf/automake/libtool) project,
  28 # configure will fail when testing the compiler or even performing
  29 # simple checks. Pass-through to compiler directly if application is
  30 # is not being linked with libcrypto, allowing auto-tooled applications
  31 # to utilize fipsld (e.g. CC=/usr/local/ssl/bin/fipsld FIPSLD_CC=gcc
  32 # ./configure && make). But keep in mind[!] that if certified code
  33 # resides in a shared library, then fipsld *may not* be used and
  34 # end-developer should not modify application configuration and build
  35 # procedures. This is because in-core fingerprint and associated
  36 # procedures are already embedded into and executed in shared library
  37 # context.
  38 case `basename "${TARGET}"` in
  39 libcrypto*|libfips*|*.dll)              ;;
  40 *)      case "$*" in
  41         *libcrypto.a*|*-lcrypto*)       ;;
  42         *)      exec ${CC} "$@"         ;;
  43         esac
  44 esac
  45
  46 [ -n "${TARGET}" ] || { echo 'no -o specified'; exit 1; }
  47
  48 # Turn on debugging output?
  49 (   while [ "x$1" != "x" -a "x$1" != "x-DDEBUG_FINGERPRINT_PREMAIN" ]; do shift; done;
  50     [ $# -ge 1 ]
  51 ) && set -x
  52
  53 THERE="`echo $0 | sed -e 's|[^/]*$||'`"..
  54
  55 # If set, FIPSLIBDIR is location of installed validated FIPS module
  56 if [ -n "${FIPSLIBDIR}" ]; then
  57         CANISTER_O="${FIPSLIBDIR}/fipscanister.o"
  58 elif [ -f "${THERE}/fips/fipscanister.o" ]; then
  59         CANISTER_O="${THERE}/fips/fipscanister.o"
  60 elif [ -f "${THERE}/lib/fipscanister.o" ]; then
  61         CANISTER_O="${THERE}/lib/fipscanister.o"
  62 fi
  63 [ -f ${CANISTER_O} ] || { echo "unable to find ${CANISTER_O}"; exit 1; }
  64
  65 PREMAIN_C=`dirname "${CANISTER_O}"`/fips_premain.c
  66
  67 HMAC_KEY="etaonrishdlcupfm"
  68
  69 case "`(uname -s) 2>/dev/null`" in
  70 OSF1|IRIX*)     _WL_PREMAIN="-Wl,-init,FINGERPRINT_premain"     ;;
  71 HP-UX)          _WL_PREMAIN="-Wl,+init,FINGERPRINT_premain"     ;;
  72 AIX)            _WL_PREMAIN="-Wl,-binitfini:FINGERPRINT_premain,-bnoobjreorder";;
  73 Darwin)         (   while [ "x$1" != "x" -a "x$1" != "x-dynamiclib" ]; do shift; done;
  74                     [ $# -ge 1 ]
  75                 ) && _WL_PREMAIN="-Wl,-init,_FINGERPRINT_premain" ;;
  76 esac
  77
  78 case "${TARGET}" in
  79 [!/]*)  TARGET=./${TARGET} ;;
  80 esac
  81
  82 case `basename "${TARGET}"` in
  83 libfips*|*fips.dll)
  84         # libfips.so creation can be taking place in the source
  85         # directory only!!!
  86         FINGERTYPE="${THERE}/fips/fips_standalone_sha1"
  87         # fipscanister.o should be specified on command line...
  88         CANISTER_O=`(while [ "x$1" != "x" ]; do case "$1" in *fipscanister.o) echo $1; exit;; esac; shift; done)`
  89         [ -n "$CANISTER_O" ] || { echo "fipscanister.o is not found"; exit 1; }
  90         PREMAIN_C=`dirname "${CANISTER_O}"`/fips_premain.c
  91
  92         # verify fipspremain.c against its detached signature...
  93         ${FINGERTYPE} "${PREMAIN_C}" | sed "s/(.*\//(/" | \
  94                 diff -w "${PREMAIN_C}.sha1" - || \
  95         { echo "${PREMAIN_C} fingerprint mismatch"; exit 1; }
  96         # verify fipscanister.o against its detached signature...
  97         ${FINGERTYPE} "${CANISTER_O}" | sed "s/(.*\//(/" | \
  98                 diff -w "${CANISTER_O}.sha1" - || \
  99         { echo "${CANISTER_O} fingerprint mismatch"; exit 1; }
 100
 101         /bin/rm -f "${TARGET}"
 102         ${CC} "${PREMAIN_C}" ${_WL_PREMAIN} "$@"
 103
 104         # generate signature...
 105         SIG=`"${THERE}/fips/fips_premain_dso" "${TARGET}"`
 106         /bin/rm -f "${TARGET}"
 107         if [ -z "${SIG}" ]; then
 108            echo "unable to collect signature"; exit 1
 109         fi
 110
 111         # recompile with signature...
 112         ${CC} -DHMAC_SHA1_SIG=\"${SIG}\" "${PREMAIN_C}" ${_WL_PREMAIN} "$@"
 113         ;;
 114 libcrypto*|*.dll)       # must be linking a shared lib...
 115         # Shared lib creation can be taking place in the source
 116         # directory only, but fipscanister.o can reside elsewhere...
 117         FINGERTYPE="${THERE}/fips/fips_standalone_sha1"
 118
 119         # verify fipspremain.c against its detached signature...
 120         ${FINGERTYPE} "${PREMAIN_C}" | sed "s/(.*\//(/" | \
 121                 diff -w "${PREMAIN_C}.sha1" - || \
 122         { echo "${PREMAIN_C} fingerprint mismatch"; exit 1; }
 123         # verify fipscanister.o against its detached signature...
 124         ${FINGERTYPE} "${CANISTER_O}" | sed "s/(.*\//(/" | \
 125                 diff -w "${CANISTER_O}.sha1" - || \
 126         { echo "${CANISTER_O} fingerprint mismatch"; exit 1; }
 127
 128         # Temporarily remove fipscanister.o from libcrypto.a!
 129         # We are required to use the standalone copy...
 130         trap    'ar r "${THERE}/libcrypto.a" "${CANISTER_O}";
 131                  (ranlib "${THERE}/libcrypto.a") 2>/dev/null || :;
 132                  sleep 1;
 133                  touch -c "${TARGET}"' 0
 134
 135         ar d "${THERE}/libcrypto.a" fipscanister.o 2>&1 > /dev/null || :
 136         (ranlib "${THERE}/libcrypto.a") 2>/dev/null || :
 137
 138         /bin/rm -f "${TARGET}"
 139         ${CC}   "${CANISTER_O}" \
 140                 "${PREMAIN_C}" \
 141                 ${_WL_PREMAIN} "$@"
 142
 143         # generate signature...
 144         SIG=`"${THERE}/fips/fips_premain_dso" "${TARGET}"`
 145         /bin/rm -f "${TARGET}"
 146         if [ -z "${SIG}" ]; then
 147            echo "unable to collect signature"; exit 1
 148         fi
 149
 150         # recompile with signature...
 151         ${CC}   "${CANISTER_O}" \
 152                 -DHMAC_SHA1_SIG=\"${SIG}\" "${PREMAIN_C}" \
 153                 ${_WL_PREMAIN} "$@"
 154         ;;
 155
 156 *)      # must be linking statically...
 157         # Static linking can be taking place either in the source
 158         # directory or off the installed binary target destination.
 159         if [ -x "${THERE}/fips/fips_standalone_sha1" ]; then
 160                 FINGERTYPE="${THERE}/fips/fips_standalone_sha1"
 161         else    # Installed tree is expected to contain
 162                 # lib/fipscanister.o, lib/fipscanister.o.sha1 and
 163                 # lib/fips_premain.c [not to mention bin/openssl].
 164                 FINGERTYPE="${THERE}/bin/openssl sha1 -hmac ${HMAC_KEY}"
 165         fi
 166
 167         # verify fipscanister.o against its detached signature...
 168         ${FINGERTYPE} "${CANISTER_O}" | sed "s/(.*\//(/" | \
 169                 diff -w "${CANISTER_O}.sha1" - || \
 170         { echo "${CANISTER_O} fingerprint mismatch"; exit 1; }
 171
 172         # verify fips_premain.c against its detached signature...
 173         ${FINGERTYPE} "${PREMAIN_C}" | sed "s/(.*\//(/" | \
 174                 diff -w "${PREMAIN_C}.sha1" - || \
 175         { echo "${PREMAIN_C} fingerprint mismatch"; exit 1; }
 176
 177         /bin/rm -f "${TARGET}"
 178         ${CC}   "${CANISTER_O}" \
 179                 "${PREMAIN_C}" \
 180                 ${_WL_PREMAIN} "$@"
 181
 182         # generate signature...
 183         SIG=`"${TARGET}"`
 184         /bin/rm -f "${TARGET}"
 185         if [ -z "${SIG}" ]; then
 186            echo "unable to collect signature"; exit 1
 187         fi
 188
 189         # recompile with signature...
 190         ${CC}   "${CANISTER_O}" \
 191                 -DHMAC_SHA1_SIG=\"${SIG}\" "${PREMAIN_C}" \
 192                 ${_WL_PREMAIN} "$@"
 193         ;;
 194 esac