macros/pam-check.m4

   1 dnl $Id: pam-check.m4,v 1.6 2010-01-11 13:06:02 franklahm Exp $
   2 dnl PAM finding macro
   3
   4 AC_DEFUN([AC_NETATALK_PATH_PAM], [
   5     netatalk_cv_use_pam=no
   6         AC_ARG_WITH(pam, [  --with-pam[[=PATH]]       specify path to PAM installation [[auto]]],
   7                 [
   8                         require_pam="yes"
   9                         if test "x$withval" = "xno"; then
  10                                 PAMDIR="NONE"
  11                                 require_pam="never"
  12                         elif test "x$withval" = "xyes"; then
  13                                 PAMDIR="NONE"
  14                         else
  15                                 PAMDIR="$withval"
  16                         fi
  17                 ],
  18                 [PAMDIR="NONE";require_pam="no"]
  19         )
  20
  21         AC_MSG_CHECKING([for PAM installation directory])
  22         if test "$host_os" != "solaris"; then
  23                 if test "x$PAMDIR" = "xNONE" -a "x$require_pam" != "xnever"; then
  24                   dnl Test for PAM
  25                   pam_paths="/ /usr/ /usr/local/"
  26                   for path in $pam_paths; do
  27                         if test -d "${path}etc/pam.d"; then
  28                                 PAMDIR="$path"
  29                                 break
  30                         fi
  31                   done
  32                 fi
  33
  34                 if test "x$PAMDIR" != "xNONE"; then
  35                         AC_MSG_RESULT([yes (path: ${PAMDIR}etc/pam.d)])
  36                 else
  37                         AC_MSG_RESULT([no])
  38                 fi
  39         else
  40                 AC_MSG_RESULT([/etc/pam.conf (solaris)])
  41         fi
  42
  43         pam_found="no"
  44         if test "x$require_pam" != "xnever"; then
  45
  46                 savedCFLAGS="$CFLAGS"
  47                 savedLDFLAGS="$LDFLAGS"
  48                 savedLIBS="$LIBS"
  49
  50                 if test "x$PAMDIR" != "xNONE" -a "x$PAMDIR" != "x/"; then
  51                         PAM_CFLAGS="-I${PAMDIR}include"
  52                         PAM_LDFLAGS="-L${PAMDIR}lib"
  53                         LDFLAGS="$LDFLAGS $PAM_LDFLAGS"
  54                         CFLAGS="$CFLAGS $PAM_CFLAGS"
  55                 fi
  56
  57                 AC_CHECK_HEADERS(security/pam_appl.h pam/pam_appl.h)
  58
  59                 if test x"$ac_cv_header_security_pam_appl_h" = x"no" -a x"$ac_cv_header_pam_pam_appl_h" = x"no"; then
  60                         pam_found=no
  61                 else
  62                         AC_CHECK_LIB(pam, pam_set_item, [
  63                                 PAM_LIBS="$PAM_LDFLAGS -lpam"
  64                                 pam_found="yes"
  65                         ])
  66                 fi
  67                 CFLAGS="$savedCFLAGS"
  68                 LDFLAGS="$savedLDFLAGS"
  69                 LIBS="$savedLIBS"
  70         fi
  71
  72         netatalk_cv_install_pam=yes
  73         if test x"$pam_found" = "xyes" -a "x$PAMDIR" = "xNONE"; then
  74                 AC_MSG_WARN([PAM support can be compiled, but the install location for the netatalk.pamd file could not be determined. Either install this file by hand or specify the install path.])
  75                 netatalk_cv_install_pam=no
  76     else
  77         dnl Check for some system|common auth file
  78         AC_MSG_CHECKING([for includable common PAM config])
  79         pampath="${PAMDIR}etc/pam.d"
  80         dnl Debian/SuSE
  81         if test -f "$pampath/common-auth" ; then
  82            PAM_DIRECTIVE=include
  83            PAM_AUTH=common-auth
  84            PAM_ACCOUNT=common-account
  85            PAM_PASSWORD=common-password
  86            PAM_SESSION=common-session
  87         dnl RHEL/FC
  88         elif test -f "$pampath/system-auth" ; then
  89            PAM_DIRECTIVE=include
  90            PAM_AUTH=system-auth
  91            PAM_ACCOUNT=system-auth
  92            PAM_PASSWORD=system-auth
  93            PAM_SESSION=system-auth
  94         dnl FreeBSD
  95         elif test -f "$pampath/system" ; then
  96            PAM_DIRECTIVE=include
  97            PAM_AUTH=system
  98            PAM_ACCOUNT=system
  99            PAM_PASSWORD=system
 100            PAM_SESSION=system
 101         dnl Fallback
 102         else
 103            PAM_DIRECTIVE=required
 104            PAM_AUTH=pam_unix.so
 105            PAM_ACCOUNT=pam_unix.so
 106            PAM_PASSWORD="pam_unix.so use_authtok"
 107            PAM_SESSION=pam_unix.so
 108         fi
 109
 110         if test "x$PAM_DIRECTIVE" != "xrequired" ; then
 111             AC_MSG_RESULT([yes ($PAM_DIRECTIVE $PAM_AUTH)])
 112         else
 113             AC_MSG_RESULT([no (using defaut pam_unix.so)])
 114         fi
 115         fi
 116
 117         AC_MSG_CHECKING([whether to enable PAM support])
 118         if test "x$pam_found" = "xno"; then
 119                 netatalk_cv_install_pam=no
 120                 if test "x$require_pam" = "xyes"; then
 121                         AC_MSG_ERROR([PAM support missing])
 122                 else
 123                         AC_MSG_RESULT([no])
 124                 fi
 125                 ifelse([$2], , :, [$2])
 126         else
 127                 AC_MSG_RESULT([yes])
 128                 ifelse([$1], , :, [$1])
 129         use_pam_so=yes
 130             compile_pam=yes
 131             netatalk_cv_use_pam=yes
 132             AC_DEFINE(USE_PAM, 1, [Define to enable PAM support])
 133         fi
 134
 135     LIB_REMOVE_USR_LIB(PAM_LIBS)
 136     CFLAGS_REMOVE_USR_INCLUDE(PAM_CFLAGS)
 137         AC_SUBST(PAMDIR)
 138         AC_SUBST(PAM_CFLAGS)
 139         AC_SUBST(PAM_LIBS)
 140     AC_SUBST(PAM_DIRECTIVE)
 141     AC_SUBST(PAM_AUTH)
 142     AC_SUBST(PAM_ACCOUNT)
 143     AC_SUBST(PAM_PASSWORD)
 144     AC_SUBST(PAM_SESSION)
 145 ])