source4/auth/kerberos/config.m4

   1 # NOTE! this whole m4 file is disabled in configure.in for now
   2
   3 #################################################
   4 # KRB5 support
   5 KRB5_CFLAGS=""
   6 KRB5_CPPFLAGS=""
   7 KRB5_LDFLAGS=""
   8 KRB5_LIBS=""
   9 with_krb5_support=auto
  10 krb5_withval=auto
  11 AC_MSG_CHECKING([for KRB5 support])
  12
  13 # Do no harm to the values of CFLAGS and LIBS while testing for
  14 # Kerberos support.
  15 AC_ARG_WITH(krb5,
  16 [  --with-krb5=base-dir    Locate Kerberos 5 support (default=auto)],
  17         [ case "$withval" in
  18                 no)
  19                         with_krb5_support=no
  20                         AC_MSG_RESULT(no)
  21                         krb5_withval=no
  22                         ;;
  23                 yes)
  24                         with_krb5_support=yes
  25                         AC_MSG_RESULT(yes)
  26                         krb5_withval=yes
  27                         ;;
  28                 auto)
  29                         with_krb5_support=auto
  30                         AC_MSG_RESULT(auto)
  31                         krb5_withval=auto
  32                         ;;
  33                 *)
  34                         with_krb5_support=yes
  35                         AC_MSG_RESULT(yes)
  36                         krb5_withval=$withval
  37                         KRB5CONFIG="$krb5_withval/bin/krb5-config"
  38                         ;;
  39         esac ],
  40         AC_MSG_RESULT($with_krb5_support)
  41 )
  42
  43 if test x$with_krb5_support != x"no"; then
  44         FOUND_KRB5=no
  45         FOUND_KRB5_VIA_CONFIG=no
  46
  47         #################################################
  48         # check for krb5-config from recent MIT and Heimdal kerberos 5
  49         AC_MSG_CHECKING(for working specified location for krb5-config)
  50         if test x$KRB5CONFIG != "x"; then
  51                 if test -x "$KRB5CONFIG"; then
  52                         ac_save_CFLAGS=$CFLAGS
  53                         CFLAGS="";export CFLAGS
  54                         ac_save_LDFLAGS=$LDFLAGS
  55                         LDFLAGS="";export LDFLAGS
  56                         KRB5_LIBS="`$KRB5CONFIG --libs gssapi`"
  57                         KRB5_CFLAGS="`$KRB5CONFIG --cflags | sed s/@INCLUDE_des@//`"
  58                         KRB5_CPPFLAGS="`$KRB5CONFIG --cflags | sed s/@INCLUDE_des@//`"
  59                         CFLAGS=$ac_save_CFLAGS;export CFLAGS
  60                         LDFLAGS=$ac_save_LDFLAGS;export LDFLAGS
  61                         FOUND_KRB5=yes
  62                         FOUND_KRB5_VIA_CONFIG=yes
  63                         AC_MSG_RESULT(yes. Found $KRB5CONFIG)
  64                 else
  65                         AC_MSG_RESULT(no. Fallback to specified directory)
  66                 fi
  67         else
  68                 AC_MSG_RESULT(no. Fallback to finding krb5-config in path)
  69                 #################################################
  70                 # check for krb5-config from recent MIT and Heimdal kerberos 5
  71                 AC_PATH_PROG(KRB5CONFIG, krb5-config)
  72                 AC_MSG_CHECKING(for working krb5-config in path)
  73                 if test -x "$KRB5CONFIG"; then
  74                         ac_save_CFLAGS=$CFLAGS
  75                         CFLAGS="";export CFLAGS
  76                         ac_save_LDFLAGS=$LDFLAGS
  77                         LDFLAGS="";export LDFLAGS
  78                         KRB5_LIBS="`$KRB5CONFIG --libs gssapi`"
  79                         KRB5_CFLAGS="`$KRB5CONFIG --cflags | sed s/@INCLUDE_des@//`"
  80                         KRB5_CPPFLAGS="`$KRB5CONFIG --cflags | sed s/@INCLUDE_des@//`"
  81                         CFLAGS=$ac_save_CFLAGS;export CFLAGS
  82                         LDFLAGS=$ac_save_LDFLAGS;export LDFLAGS
  83                         FOUND_KRB5=yes
  84                         FOUND_KRB5_VIA_CONFIG=yes
  85                         AC_MSG_RESULT(yes. Found $KRB5CONFIG)
  86                 else
  87                         AC_MSG_RESULT(no. Fallback to previous krb5 detection strategy)
  88                 fi
  89         fi
  90
  91         if test x$FOUND_KRB5 != x"yes"; then
  92                 #################################################
  93                 # check for location of Kerberos 5 install
  94                 AC_MSG_CHECKING(for kerberos 5 install path)
  95                 case "$krb5_withval" in
  96                         no)
  97                                 AC_MSG_RESULT(no krb5-path given)
  98                                 ;;
  99                         yes)
 100                                 AC_MSG_RESULT(/usr)
 101                                 FOUND_KRB5=yes
 102                                 ;;
 103                         *)
 104                                 AC_MSG_RESULT($krb5_withval)
 105                                 KRB5_CFLAGS="-I$krb5_withval/include"
 106                                 KRB5_CPPFLAGS="-I$krb5_withval/include"
 107                                 KRB5_LDFLAGS="-L$krb5_withval/lib"
 108                                 FOUND_KRB5=yes
 109                                 ;;
 110                 esac
 111         fi
 112
 113         if test x$FOUND_KRB5 != x"yes"; then
 114                 #################################################
 115                 # see if this box has the SuSE location for the heimdal krb implementation
 116                 AC_MSG_CHECKING(for /usr/include/heimdal)
 117                 if test -d /usr/include/heimdal; then
 118                         if test -f /usr/lib/heimdal/lib/libkrb5.a; then
 119                                 KRB5_CFLAGS="-I/usr/include/heimdal"
 120                                 KRB5_CPPFLAGS="-I/usr/include/heimdal"
 121                                 KRB5_LDFLAGS="-L/usr/lib/heimdal/lib"
 122                                 AC_MSG_RESULT(yes)
 123                         else
 124                                 KRB5_CFLAGS="-I/usr/include/heimdal"
 125                                 KRB5_CPPFLAGS="-I/usr/include/heimdal"
 126                                 AC_MSG_RESULT(yes)
 127                         fi
 128                 else
 129                         AC_MSG_RESULT(no)
 130                 fi
 131         fi
 132
 133         if test x$FOUND_KRB5 != x"yes"; then
 134                 #################################################
 135                 # see if this box has the RedHat location for kerberos
 136                 AC_MSG_CHECKING(for /usr/kerberos)
 137                 if test -d /usr/kerberos -a -f /usr/kerberos/lib/libkrb5.a; then
 138                         KRB5_LDFLAGS="-L/usr/kerberos/lib"
 139                         KRB5_CFLAGS="-I/usr/kerberos/include"
 140                         KRB5_CPPFLAGS="-I/usr/kerberos/include"
 141                         AC_MSG_RESULT(yes)
 142                 else
 143                         AC_MSG_RESULT(no)
 144                 fi
 145         fi
 146
 147         ac_save_CFLAGS=$CFLAGS
 148         ac_save_CPPFLAGS=$CPPFLAGS
 149         ac_save_LDFLAGS=$LDFLAGS
 150
 151         #MIT needs this, to let us see 'internal' parts of the headers we use
 152         KRB5_CFLAGS="${KRB5_CFLAGS} -DKRB5_PRIVATE -DKRB5_DEPRECATED"
 153
 154         #Heimdal needs this
 155         #TODO: we need to parse KRB5_LIBS for -L path
 156         #      and set -Wl,-rpath -Wl,path
 157
 158         CFLAGS="$CFLAGS $KRB5_CFLAGS"
 159         CPPFLAGS="$CPPFLAGS $KRB5_CPPFLAGS"
 160         LDFLAGS="$LDFLAGS $KRB5_LDFLAGS"
 161
 162         KRB5_LIBS="$KRB5_LDFLAGS $KRB5_LIBS"
 163
 164         # now check for krb5.h. Some systems have the libraries without the headers!
 165         # note that this check is done here to allow for different kerberos
 166         # include paths
 167         AC_CHECK_HEADERS(krb5.h)
 168
 169         if test x"$ac_cv_header_krb5_h" = x"no"; then
 170                 # Give a warning if KRB5 support was not explicitly requested,
 171                 # i.e with_krb5_support = auto, otherwise die with an error.
 172                 if test x"$with_krb5_support" = x"yes"; then
 173                         AC_MSG_ERROR([KRB5 cannot be supported without krb5.h])
 174                 else
 175                         AC_MSG_WARN([KRB5 cannot be supported without krb5.h])
 176                 fi
 177                 # Turn off AD support and restore CFLAGS and LIBS variables
 178                 with_krb5_support="no"
 179         fi
 180
 181         CFLAGS=$ac_save_CFLAGS
 182         CPPFLAGS=$ac_save_CPPFLAGS
 183         LDFLAGS=$ac_save_LDFLAGS
 184 fi
 185
 186 # Now we have determined whether we really want KRB5 support
 187
 188 if test x"$with_krb5_support" != x"no"; then
 189         ac_save_CFLAGS=$CFLAGS
 190         ac_save_CPPFLAGS=$CPPFLAGS
 191         ac_save_LDFLAGS=$LDFLAGS
 192         ac_save_LIBS=$LIBS
 193
 194         CFLAGS="$CFLAGS $KRB5_CFLAGS"
 195         CPPFLAGS="$CPPFLAGS $KRB5_CPPFLAGS"
 196         LDFLAGS="$LDFLAGS $KRB5_LDFLAGS"
 197
 198         # now check for gssapi headers.  This is also done here to allow for
 199         # different kerberos include paths
 200         AC_CHECK_HEADERS(gssapi.h gssapi_krb5.h gssapi/gssapi.h gssapi/gssapi_generic.h gssapi/gssapi_krb5.h com_err.h)
 201
 202
 203         # Heimdal checks.
 204         # But only if we didn't have a krb5-config to tell us this already
 205         if test x"$FOUND_KRB5_VIA_CONFIG" != x"yes"; then
 206                 ##################################################################
 207                 # we might need the k5crypto and com_err libraries on some systems
 208                 AC_CHECK_LIB_EXT(com_err, KRB5_LIBS, _et_list)
 209                 AC_CHECK_LIB_EXT(k5crypto, KRB5_LIBS, krb5_encrypt_data)
 210
 211                 AC_CHECK_LIB_EXT(crypto, KRB5_LIBS, des_set_key)
 212                 AC_CHECK_LIB_EXT(asn1, KRB5_LIBS, copy_Authenticator)
 213                 AC_CHECK_LIB_EXT(roken, KRB5_LIBS, roken_getaddrinfo_hostspec)
 214         fi
 215
 216         # Heimdal checks. On static Heimdal gssapi must be linked before krb5.
 217         AC_CHECK_LIB_EXT(gssapi, KRB5_LIBS, gss_display_status,[],[],
 218                                 AC_DEFINE(HAVE_GSSAPI,1,[Whether GSSAPI is available]))
 219
 220         ########################################################
 221         # now see if we can find the krb5 libs in standard paths
 222         # or as specified above
 223         AC_CHECK_LIB_EXT(krb5, KRB5_LIBS, krb5_mk_req_extended)
 224         AC_CHECK_LIB_EXT(krb5, KRB5_LIBS, krb5_kt_compare)
 225
 226         ########################################################
 227         # now see if we can find the gssapi libs in standard paths
 228         if test x"$ac_cv_lib_ext_gssapi_gss_display_status" != x"yes"; then
 229            AC_CHECK_LIB_EXT(gssapi_krb5, KRB5_LIBS,gss_display_status,[],[],
 230                 AC_DEFINE(HAVE_GSSAPI,1,[Whether GSSAPI is available]))
 231         fi
 232
 233         AC_CHECK_FUNC_EXT(krb5_set_real_time, $KRB5_LIBS)
 234         AC_CHECK_FUNC_EXT(krb5_set_default_in_tkt_etypes, $KRB5_LIBS)
 235         AC_CHECK_FUNC_EXT(krb5_set_default_tgs_ktypes, $KRB5_LIBS)
 236         AC_CHECK_FUNC_EXT(krb5_principal2salt, $KRB5_LIBS)
 237         AC_CHECK_FUNC_EXT(krb5_use_enctype, $KRB5_LIBS)
 238         AC_CHECK_FUNC_EXT(krb5_string_to_key, $KRB5_LIBS)
 239         AC_CHECK_FUNC_EXT(krb5_get_pw_salt, $KRB5_LIBS)
 240         AC_CHECK_FUNC_EXT(krb5_string_to_key_salt, $KRB5_LIBS)
 241         AC_CHECK_FUNC_EXT(krb5_auth_con_setkey, $KRB5_LIBS)
 242         AC_CHECK_FUNC_EXT(krb5_auth_con_setuseruserkey, $KRB5_LIBS)
 243         AC_CHECK_FUNC_EXT(krb5_locate_kdc, $KRB5_LIBS)
 244         AC_CHECK_FUNC_EXT(krb5_get_permitted_enctypes, $KRB5_LIBS)
 245         AC_CHECK_FUNC_EXT(krb5_get_default_in_tkt_etypes, $KRB5_LIBS)
 246         AC_CHECK_FUNC_EXT(krb5_free_ktypes, $KRB5_LIBS)
 247         AC_CHECK_FUNC_EXT(krb5_free_data_contents, $KRB5_LIBS)
 248         AC_CHECK_FUNC_EXT(krb5_principal_get_comp_string, $KRB5_LIBS)
 249         AC_CHECK_FUNC_EXT(krb5_free_unparsed_name, $KRB5_LIBS)
 250         AC_CHECK_FUNC_EXT(krb5_free_keytab_entry_contents, $KRB5_LIBS)
 251         AC_CHECK_FUNC_EXT(krb5_kt_free_entry, $KRB5_LIBS)
 252         AC_CHECK_FUNC_EXT(krb5_krbhst_get_addrinfo, $KRB5_LIBS)
 253         AC_CHECK_FUNC_EXT(krb5_verify_checksum, $KRB5_LIBS)
 254         AC_CHECK_FUNC_EXT(krb5_c_verify_checksum, $KRB5_LIBS)
 255         AC_CHECK_FUNC_EXT(krb5_ticket_get_authorization_data_type, $KRB5_LIBS)
 256         AC_CHECK_FUNC_EXT(krb5_krbhst_get_addrinfo, $KRB5_LIBS)
 257         AC_CHECK_FUNC_EXT(krb5_c_enctype_compare, $KRB5_LIBS)
 258         AC_CHECK_FUNC_EXT(krb5_enctypes_compatible_keys, $KRB5_LIBS)
 259         AC_CHECK_FUNC_EXT(krb5_get_error_string, $KRB5_LIBS)
 260         AC_CHECK_FUNC_EXT(krb5_free_error_string, $KRB5_LIBS)
 261         AC_CHECK_FUNC_EXT(krb5_initlog, $KRB5_LIBS)
 262         AC_CHECK_FUNC_EXT(krb5_addlog_func, $KRB5_LIBS)
 263         AC_CHECK_FUNC_EXT(krb5_set_warn_dest, $KRB5_LIBS)
 264
 265         LIBS="$LIBS $KRB5_LIBS"
 266
 267         AC_CACHE_CHECK([for krb5_log_facility type],
 268                 samba_cv_HAVE_KRB5_LOG_FACILITY,[
 269         AC_TRY_COMPILE([#include <krb5.h>],
 270                 [krb5_log_facility block;],
 271                 samba_cv_HAVE_KRB5_LOG_FACILITY=yes,
 272                 samba_cv_HAVE_KRB5_LOG_FACILITY=no)])
 273
 274         if test x"$samba_cv_HAVE_KRB5_LOG_FACILITY" = x"yes"; then
 275                 AC_DEFINE(HAVE_KRB5_LOG_FACILITY,1,
 276                 [Whether the type krb5_log_facility exists])
 277         fi
 278
 279         AC_CACHE_CHECK([for krb5_encrypt_block type],
 280                 samba_cv_HAVE_KRB5_ENCRYPT_BLOCK,[
 281         AC_TRY_COMPILE([#include <krb5.h>],
 282                 [krb5_encrypt_block block;],
 283                 samba_cv_HAVE_KRB5_ENCRYPT_BLOCK=yes,
 284                 samba_cv_HAVE_KRB5_ENCRYPT_BLOCK=no)])
 285
 286         if test x"$samba_cv_HAVE_KRB5_ENCRYPT_BLOCK" = x"yes"; then
 287                 AC_DEFINE(HAVE_KRB5_ENCRYPT_BLOCK,1,
 288                 [Whether the type krb5_encrypt_block exists])
 289         fi
 290
 291         AC_CACHE_CHECK([for addrtype in krb5_address],
 292                 samba_cv_HAVE_ADDRTYPE_IN_KRB5_ADDRESS,[
 293                 AC_TRY_COMPILE([#include <krb5.h>],
 294                 [krb5_address kaddr; kaddr.addrtype = ADDRTYPE_INET;],
 295                 samba_cv_HAVE_ADDRTYPE_IN_KRB5_ADDRESS=yes,
 296                 samba_cv_HAVE_ADDRTYPE_IN_KRB5_ADDRESS=no)])
 297         if test x"$samba_cv_HAVE_ADDRTYPE_IN_KRB5_ADDRESS" = x"yes"; then
 298                 AC_DEFINE(HAVE_ADDRTYPE_IN_KRB5_ADDRESS,1,
 299                 [Whether the krb5_address struct has a addrtype property])
 300         fi
 301
 302         AC_CACHE_CHECK([for addr_type in krb5_address],
 303                 samba_cv_HAVE_ADDR_TYPE_IN_KRB5_ADDRESS,[
 304                 AC_TRY_COMPILE([#include <krb5.h>],
 305                 [krb5_address kaddr; kaddr.addr_type = KRB5_ADDRESS_INET;],
 306                 samba_cv_HAVE_ADDR_TYPE_IN_KRB5_ADDRESS=yes,
 307                 samba_cv_HAVE_ADDR_TYPE_IN_KRB5_ADDRESS=no)])
 308         if test x"$samba_cv_HAVE_ADDR_TYPE_IN_KRB5_ADDRESS" = x"yes"; then
 309                 AC_DEFINE(HAVE_ADDR_TYPE_IN_KRB5_ADDRESS,1,
 310                 [Whether the krb5_address struct has a addr_type property])
 311         fi
 312
 313         AC_CACHE_CHECK([for enc_part2 in krb5_ticket],
 314                 samba_cv_HAVE_KRB5_TKT_ENC_PART2,[
 315                 AC_TRY_COMPILE([#include <krb5.h>],
 316                 [krb5_ticket tkt; tkt.enc_part2->authorization_data[0]->contents = NULL;],
 317                 samba_cv_HAVE_KRB5_TKT_ENC_PART2=yes,
 318                 samba_cv_HAVE_KRB5_TKT_ENC_PART2=no)])
 319         if test x"$samba_cv_HAVE_KRB5_TKT_ENC_PART2" = x"yes"; then
 320                 AC_DEFINE(HAVE_KRB5_TKT_ENC_PART2,1,
 321                 [Whether the krb5_ticket struct has a enc_part2 property])
 322         fi
 323
 324         AC_CACHE_CHECK([for keyblock in krb5_creds],
 325                  samba_cv_HAVE_KRB5_KEYBLOCK_IN_CREDS,[
 326         AC_TRY_COMPILE([#include <krb5.h>],
 327                 [krb5_creds creds; krb5_keyblock kb; creds.keyblock = kb;],
 328                 samba_cv_HAVE_KRB5_KEYBLOCK_IN_CREDS=yes,
 329                 samba_cv_HAVE_KRB5_KEYBLOCK_IN_CREDS=no)])
 330
 331         if test x"$samba_cv_HAVE_KRB5_KEYBLOCK_IN_CREDS" = x"yes"; then
 332                 AC_DEFINE(HAVE_KRB5_KEYBLOCK_IN_CREDS,1,
 333                 [Whether the krb5_creds struct has a keyblock property])
 334         fi
 335
 336         AC_CACHE_CHECK([for session in krb5_creds],
 337                  samba_cv_HAVE_KRB5_SESSION_IN_CREDS,[
 338         AC_TRY_COMPILE([#include <krb5.h>],
 339                 [krb5_creds creds; krb5_keyblock kb; creds.session = kb;],
 340                 samba_cv_HAVE_KRB5_SESSION_IN_CREDS=yes,
 341                 samba_cv_HAVE_KRB5_SESSION_IN_CREDS=no)])
 342
 343         if test x"$samba_cv_HAVE_KRB5_SESSION_IN_CREDS" = x"yes"; then
 344                 AC_DEFINE(HAVE_KRB5_SESSION_IN_CREDS,1,
 345                 [Whether the krb5_creds struct has a session property])
 346         fi
 347
 348         AC_CACHE_CHECK([for keyvalue in krb5_keyblock],
 349                 samba_cv_HAVE_KRB5_KEYBLOCK_KEYVALUE,[
 350                 AC_TRY_COMPILE([#include <krb5.h>],
 351                 [krb5_keyblock key; key.keyvalue.data = NULL;],
 352                 samba_cv_HAVE_KRB5_KEYBLOCK_KEYVALUE=yes,
 353                 samba_cv_HAVE_KRB5_KEYBLOCK_KEYVALUE=no)])
 354         if test x"$samba_cv_HAVE_KRB5_KEYBLOCK_KEYVALUE" = x"yes"; then
 355                 AC_DEFINE(HAVE_KRB5_KEYBLOCK_KEYVALUE,1,
 356                 [Whether the krb5_keyblock struct has a keyvalue property])
 357         fi
 358
 359         AC_CACHE_CHECK([for ENCTYPE_ARCFOUR_HMAC_MD5],
 360                 samba_cv_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5,[
 361                 AC_TRY_COMPILE([#include <krb5.h>],
 362                 [krb5_enctype enctype; enctype = ENCTYPE_ARCFOUR_HMAC_MD5;],
 363                 samba_cv_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5=yes,
 364                 samba_cv_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5=no)])
 365         AC_CACHE_CHECK([for KEYTYPE_ARCFOUR_56],
 366                  samba_cv_HAVE_KEYTYPE_ARCFOUR_56,[
 367                 AC_TRY_COMPILE([#include <krb5.h>],
 368                 [krb5_keytype keytype; keytype = KEYTYPE_ARCFOUR_56;],
 369                 samba_cv_HAVE_KEYTYPE_ARCFOUR_56=yes,
 370                 samba_cv_HAVE_KEYTYPE_ARCFOUR_56=no)])
 371         # Heimdals with KEYTYPE_ARCFOUR but not KEYTYPE_ARCFOUR_56 are broken
 372         # w.r.t. arcfour and windows, so we must not enable it here
 373         if test x"$samba_cv_HAVE_ENCTYPE_ARCFOUR_HMAC_MD5" = x"yes" -a\
 374            x"$samba_cv_HAVE_KEYTYPE_ARCFOUR_56" = x"yes"; then
 375                 AC_DEFINE(HAVE_ENCTYPE_ARCFOUR_HMAC_MD5,1,
 376                 [Whether the ENCTYPE_ARCFOUR_HMAC_MD5 key type is available])
 377         fi
 378
 379         AC_CACHE_CHECK([for AP_OPTS_USE_SUBKEY],
 380                 samba_cv_HAVE_AP_OPTS_USE_SUBKEY,[
 381                 AC_TRY_COMPILE([#include <krb5.h>],
 382                 [krb5_flags ap_options; ap_options = AP_OPTS_USE_SUBKEY;],
 383                 samba_cv_HAVE_AP_OPTS_USE_SUBKEY=yes,
 384                 samba_cv_HAVE_AP_OPTS_USE_SUBKEY=no)])
 385         if test x"$samba_cv_HAVE_AP_OPTS_USE_SUBKEY" = x"yes"; then
 386                 AC_DEFINE(HAVE_AP_OPTS_USE_SUBKEY,1,
 387                 [Whether the AP_OPTS_USE_SUBKEY ap option is available])
 388         fi
 389
 390         AC_CACHE_CHECK([for KV5M_KEYTAB],
 391                 samba_cv_HAVE_KV5M_KEYTAB,[
 392                 AC_TRY_COMPILE([#include <krb5.h>],
 393                 [krb5_keytab_entry entry; entry.magic = KV5M_KEYTAB;],
 394                 samba_cv_HAVE_KV5M_KEYTAB=yes,
 395                 samba_cv_HAVE_KV5M_KEYTAB=no)])
 396         if test x"$samba_cv_HAVE_KV5M_KEYTAB" = x"yes"; then
 397                 AC_DEFINE(HAVE_KV5M_KEYTAB,1,
 398                 [Whether the KV5M_KEYTAB option is available])
 399         fi
 400
 401         AC_CACHE_CHECK([for the krb5_princ_component macro],
 402                 samba_cv_HAVE_KRB5_PRINC_COMPONENT,[
 403                 AC_TRY_LINK([#include <krb5.h>],
 404                 [const krb5_data *pkdata; krb5_context context; krb5_principal principal;
 405                         pkdata = krb5_princ_component(context, principal, 0);],
 406                 samba_cv_HAVE_KRB5_PRINC_COMPONENT=yes,
 407                 samba_cv_HAVE_KRB5_PRINC_COMPONENT=no)])
 408         if test x"$samba_cv_HAVE_KRB5_PRINC_COMPONENT" = x"yes"; then
 409                 AC_DEFINE(HAVE_KRB5_PRINC_COMPONENT,1,
 410                [Whether krb5_princ_component is available])
 411         fi
 412
 413         AC_CACHE_CHECK([for key in krb5_keytab_entry],
 414                 samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEY,[
 415                 AC_TRY_COMPILE([#include <krb5.h>],
 416                 [krb5_keytab_entry entry; krb5_keyblock e; entry.key = e;],
 417                 samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEY=yes,
 418                 samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEY=no)])
 419         if test x"$samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEY" = x"yes"; then
 420                 AC_DEFINE(HAVE_KRB5_KEYTAB_ENTRY_KEY,1,
 421                 [Whether krb5_keytab_entry has key member])
 422         fi
 423
 424         AC_CACHE_CHECK([for keyblock in krb5_keytab_entry],
 425                 samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK,[
 426                 AC_TRY_COMPILE([#include <krb5.h>],
 427                 [krb5_keytab_entry entry; entry.keyblock.keytype = 0;],
 428                 samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK=yes,
 429                 samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK=no)])
 430         if test x"$samba_cv_HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK" = x"yes"; then
 431                 AC_DEFINE(HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK,1,
 432                 [Whether krb5_keytab_entry has keyblock member])
 433         fi
 434
 435         AC_CACHE_CHECK([for WRFILE: keytab support],
 436                 samba_cv_HAVE_WRFILE_KEYTAB,[
 437                 AC_TRY_RUN([
 438                 #include<krb5.h>
 439                 main()
 440                 {
 441                         krb5_context context;
 442                         krb5_keytab keytab;
 443                         krb5_init_context(&context);
 444                         return krb5_kt_resolve(context, "WRFILE:api", &keytab);
 445                 }],
 446                 samba_cv_HAVE_WRFILE_KEYTAB=yes,
 447                 samba_cv_HAVE_WRFILE_KEYTAB=no)])
 448         if test x"$samba_cv_HAVE_WRFILE_KEYTAB" = x"yes"; then
 449                 AC_DEFINE(HAVE_WRFILE_KEYTAB,1,
 450                 [Whether the WRFILE:-keytab is supported])
 451         fi
 452
 453         AC_CACHE_CHECK([for krb5_princ_realm returns krb5_realm or krb5_data],
 454                 samba_cv_KRB5_PRINC_REALM_RETURNS_REALM,[
 455                 AC_TRY_COMPILE([#include <krb5.h>],
 456                 [krb5_context context;krb5_principal principal;krb5_realm realm;
 457                         realm = *krb5_princ_realm(context, principal);],
 458                 samba_cv_KRB5_PRINC_REALM_RETURNS_REALM=yes,
 459                 samba_cv_KRB5_PRINC_REALM_RETURNS_REALM=no)])
 460         if test x"$samba_cv_KRB5_PRINC_REALM_RETURNS_REALM" = x"yes"; then
 461                 AC_DEFINE(KRB5_PRINC_REALM_RETURNS_REALM,1,
 462                 [Whether krb5_princ_realm returns krb5_realm or krb5_data])
 463         fi
 464
 465         # TODO: check all gssapi headers for this
 466         AC_CACHE_CHECK([for GSS_C_DCE_STYLE in gssapi.h],
 467                 samba_cv_GSS_C_DCE_STYLE,[
 468                 AC_TRY_COMPILE([#include <gssapi.h>],
 469                 [int flags = GSS_C_DCE_STYLE;],
 470                 samba_cv_GSS_C_DCE_STYLE=yes,
 471                 samba_cv_GSS_C_DCE_STYLE=no)])
 472
 473         AC_CHECK_FUNC_EXT(gsskrb5_get_initiator_subkey, $KRB5_LIBS)
 474         AC_CHECK_FUNC_EXT(gsskrb5_extract_authz_data_from_sec_context, $KRB5_LIBS)
 475         AC_CHECK_FUNC_EXT(gsskrb5_register_acceptor_identity, $KRB5_LIBS)
 476         AC_CHECK_FUNC_EXT(gss_krb5_ccache_name, $KRB5_LIBS)
 477         if test x"$ac_cv_lib_ext_krb5_krb5_mk_req_extended" = x"yes"; then
 478                 AC_DEFINE(HAVE_KRB5,1,[Whether to have KRB5 support])
 479                 AC_MSG_CHECKING(whether KRB5 support is used)
 480                 SMB_ENABLE(KRB5,YES)
 481                 AC_MSG_RESULT(yes)
 482                 echo "KRB5_CFLAGS:   ${KRB5_CFLAGS}"
 483                 echo "KRB5_CPPFLAGS: ${KRB5_CPPFLAGS}"
 484                 echo "KRB5_LDFLAGS:  ${KRB5_LDFLAGS}"
 485                 echo "KRB5_LIBS:     ${KRB5_LIBS}"
 486         else
 487                 if test x"$with_krb5_support" = x"yes"; then
 488                         AC_MSG_ERROR(a working krb5 library is needed for KRB5 support)
 489                 else
 490                         AC_MSG_WARN(a working krb5 library is needed for KRB5 support)
 491                 fi
 492                 KRB5_CFLAGS=""
 493                 KRB5_CPPFLAGS=""
 494                 KRB5_LDFLAGS=""
 495                 KRB5_LIBS=""
 496                 with_krb5_support=no
 497         fi
 498
 499         # checks if we have access to a libkdc
 500         # and can use it for our builtin kdc server_service
 501         KDC_CFLAGS=""
 502         KDC_CPPFLAGS=""
 503         KDC_DLFLAGS=""
 504         KDC_LIBS=""
 505         AC_CHECK_HEADERS(kdc.h)
 506         AC_CHECK_LIB_EXT(kdc, KDC_LIBS, krb5_kdc_default_config)
 507         AC_CHECK_LIB_EXT(hdb, KDC_LIBS, hdb_generate_key_set_password)
 508
 509         AC_MSG_CHECKING(whether libkdc is used)
 510         if test x"$ac_cv_header_kdc_h" = x"yes"; then
 511                 if test x"$ac_cv_lib_ext_kdc_krb5_kdc_default_config" = x"yes"; then
 512                         if test x"$ac_cv_lib_ext_hdb_hdb_generate_key_set_password" = x"yes"; then
 513                                 SMB_ENABLE(KDC,YES)
 514                                 AC_MSG_RESULT(yes)
 515                                 echo "KDC_LIBS:     ${KDC_LIBS}"
 516                         else
 517                                 AC_MSG_RESULT(no)
 518                         fi
 519                 else
 520                         AC_MSG_RESULT(no)
 521                 fi
 522         else
 523                 AC_MSG_RESULT(no)
 524         fi
 525
 526         CFLAGS=$ac_save_CFLAGS
 527         CPPFLAGS=$ac_save_CPPFLAGS
 528         LDFLAGS=$ac_save_LDFLAGS
 529         LIBS="$ac_save_LIBS"
 530
 531         # as a nasty hack add the krb5 stuff to the global vars,
 532         # at some point this should not be needed anymore when the build system
 533         # can handle that alone
 534         CFLAGS="$CFLAGS $KRB5_CFLAGS"
 535         CPPFLAGS="$CPPFLAGS $KRB5_CPPFLAGS"
 536         LDFLAGS="$LDFLAGS $KRB5_LDFLAGS"
 537 fi
 538
 539 SMB_EXT_LIB(KRB5,[${KRB5_LIBS}],[${KRB5_CFLAGS}],[${KRB5_CPPFLAGS}],[${KRB5_LDFLAGS}])
 540 SMB_EXT_LIB(KDC,[${KDC_LIBS}],[${KDC_CFLAGS}],[${KDC_CPPFLAGS}],[${KDC_LDFLAGS}])