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*|*fipscanister.o*)      ;;
  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 # fipscanister.o can appear in command line
  56 CANISTER_O=`(while [ "x$1" != "x" ]; do case "$1" in *fipscanister.o) echo $1; exit;; esac; shift; done)`
  57 if [ -z "${CANISTER_O}" ]; then
  58         # If set, FIPSLIBDIR is location of installed validated FIPS module
  59         if [ -n "${FIPSLIBDIR}" ]; then
  60                 CANISTER_O="${FIPSLIBDIR}/fipscanister.o"
  61         elif [ -f "${THERE}/fips/fipscanister.o" ]; then
  62                 CANISTER_O="${THERE}/fips/fipscanister.o"
  63         elif [ -f "${THERE}/lib/fipscanister.o" ]; then
  64                 CANISTER_O="${THERE}/lib/fipscanister.o"
  65         fi
  66         CANISTER_O_CMD="${CANISTER_O}"
  67 fi
  68 [ -f ${CANISTER_O} ] || { echo "unable to find ${CANISTER_O}"; exit 1; }
  69
  70 PREMAIN_C=`dirname "${CANISTER_O}"`/fips_premain.c
  71
  72 HMAC_KEY="etaonrishdlcupfm"
  73
  74 case "`(uname -s) 2>/dev/null`" in
  75 OSF1|IRIX*)     _WL_PREMAIN="-Wl,-init,FINGERPRINT_premain"     ;;
  76 HP-UX)          _WL_PREMAIN="-Wl,+init,FINGERPRINT_premain"     ;;
  77 AIX)            _WL_PREMAIN="-Wl,-binitfini:FINGERPRINT_premain,-bnoobjreorder";;
  78 Darwin)         (   while [ "x$1" != "x" -a "x$1" != "x-dynamiclib" ]; do shift; done;
  79                     [ $# -ge 1 ]
  80                 ) && _WL_PREMAIN="-Wl,-init,_FINGERPRINT_premain" ;;
  81 esac
  82
  83 case "${TARGET}" in
  84 [!/]*)  TARGET=./${TARGET} ;;
  85 esac
  86
  87 case `basename "${TARGET}"` in
  88 lib*|*.dll)     # must be linking a shared lib...
  89         # Shared lib creation can be taking place in the source
  90         # directory only, but fipscanister.o can reside elsewhere...
  91         FINGERTYPE="${THERE}/fips/fips_standalone_sha1"
  92
  93         # verify fipspremain.c against its detached signature...
  94         ${FINGERTYPE} "${PREMAIN_C}" | sed "s/(.*\//(/" | \
  95                 diff -w "${PREMAIN_C}.sha1" - || \
  96         { echo "${PREMAIN_C} fingerprint mismatch"; exit 1; }
  97         # verify fipscanister.o against its detached signature...
  98         ${FINGERTYPE} "${CANISTER_O}" | sed "s/(.*\//(/" | \
  99                 diff -w "${CANISTER_O}.sha1" - || \
 100         { echo "${CANISTER_O} fingerprint mismatch"; exit 1; }
 101
 102         # Temporarily remove fipscanister.o from libcrypto.a!
 103         # We are required to use the standalone copy...
 104         if [ -f "${THERE}/libcrypto.a" ]; then
 105             if ar d "${THERE}/libcrypto.a" fipscanister.o; then
 106                 (ranlib "${THERE}/libcrypto.a") 2>/dev/null || :
 107                 trap    'ar r "${THERE}/libcrypto.a" "${CANISTER_O}";
 108                          (ranlib "${THERE}/libcrypto.a") 2>/dev/null || :;
 109                          sleep 1;
 110                          touch -c "${TARGET}"' 0
 111             fi
 112         fi
 113
 114         /bin/rm -f "${TARGET}"
 115         ${CC}   ${CANISTER_O_CMD:+"${CANISTER_O_CMD}"} \
 116                 "${PREMAIN_C}" \
 117                 ${_WL_PREMAIN} "$@"
 118
 119         # generate signature...
 120         if [ -z "${FIPS_SIG}" ]; then
 121                 SIG=`"${THERE}/fips/fips_premain_dso" "${TARGET}"`
 122         else
 123                 SIG=`"${FIPS_SIG}" -dso "${TARGET}"`
 124         fi
 125         /bin/rm -f "${TARGET}"
 126         if [ -z "${SIG}" ]; then
 127            echo "unable to collect signature"; exit 1
 128         fi
 129
 130         # recompile with signature...
 131         ${CC}   ${CANISTER_O_CMD:+"${CANISTER_O_CMD}"} \
 132                 -DHMAC_SHA1_SIG=\"${SIG}\" "${PREMAIN_C}" \
 133                 ${_WL_PREMAIN} "$@"
 134         ;;
 135
 136 *)      # must be linking statically...
 137         # Static linking can be taking place either in the source
 138         # directory or off the installed binary target destination.
 139         if [ -x "${THERE}/fips/fips_standalone_sha1" ]; then
 140                 FINGERTYPE="${THERE}/fips/fips_standalone_sha1"
 141         else    # Installed tree is expected to contain
 142                 # lib/fipscanister.o, lib/fipscanister.o.sha1 and
 143                 # lib/fips_premain.c [not to mention bin/openssl].
 144                 FINGERTYPE="${THERE}/bin/openssl sha1 -hmac ${HMAC_KEY}"
 145         fi
 146
 147         # verify fipscanister.o against its detached signature...
 148         ${FINGERTYPE} "${CANISTER_O}" | sed "s/(.*\//(/" | \
 149                 diff -w "${CANISTER_O}.sha1" - || \
 150         { echo "${CANISTER_O} fingerprint mismatch"; exit 1; }
 151
 152         # verify fips_premain.c against its detached signature...
 153         ${FINGERTYPE} "${PREMAIN_C}" | sed "s/(.*\//(/" | \
 154                 diff -w "${PREMAIN_C}.sha1" - || \
 155         { echo "${PREMAIN_C} fingerprint mismatch"; exit 1; }
 156
 157         /bin/rm -f "${TARGET}"
 158         ${CC}   ${CANISTER_O_CMD:+"${CANISTER_O_CMD}"} \
 159                 "${PREMAIN_C}" \
 160                 ${_WL_PREMAIN} "$@"
 161
 162         # generate signature...
 163         if [ -z "${FIPS_SIG}" ]; then
 164                 SIG=`"${TARGET}"`
 165         else
 166                 SIG=`"${FIPS_SIG}" -exe "${TARGET}"`
 167         fi
 168         /bin/rm -f "${TARGET}"
 169         if [ -z "${SIG}" ]; then
 170            echo "unable to collect signature"; exit 1
 171         fi
 172
 173         # recompile with signature...
 174         ${CC}   ${CANISTER_O_CMD:+"${CANISTER_O_CMD}"} \
 175                 -DHMAC_SHA1_SIG=\"${SIG}\" "${PREMAIN_C}" \
 176                 ${_WL_PREMAIN} "$@"
 177         ;;
 178 esac