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freeipa/server.m4
Alexander Bokovoy 3a42bc0960 extdom-extop: refactor tests to use unshare+chroot to override nss_files configuration 
Unit tests for ipa-extdom-extop plugin use nss_files.so.2 module to test the
functionality instead of relying on SSSD API or nss_sss.so.2 module. The latter
two cannot be used in build environment.

nss_files.so.2 always tries to open /etc/passwd and /etc/group. In past, we
overloaded 'fopen()' to change the path to opened file but this stops working
after glibc consolidate file opening in nss_files with the code starting at
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=299210c1fa67e2dfb564475986fce11cd33db9ad,
this method is not usable anymore and builds against glibc 2.31.9000+ fail in
cmocka unit test execution in Rawhide.

Apply an alternative approach that uses a new user namespace to unshare the
test from its parent and chroot to the test data where expected /etc/passwd and
/etc/group are provided. This method works only on Linux, thus only run the
unit test on Linux.

In case unshare() or chroot() fail, we have to skip tests that use
nss_files.so.2.

Fixes: https://pagure.io/freeipa/issue/8437
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
2020-08-04 18:43:22 +03:00

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dnl server dependencies
dnl ---------------------------------------------------------------------------
dnl - Check for DS slapi plugin
dnl ---------------------------------------------------------------------------
# 389-ds headers depend on NSPR
PKG_CHECK_MODULES([NSPR], [nspr])
# Need to hack CPPFLAGS to be able to correctly detect slapi-plugin.h
SAVE_CPPFLAGS=$CPPFLAGS
CPPFLAGS=$NSPR_CFLAGS
AC_CHECK_HEADER(dirsrv/slapi-plugin.h)
if test "x$ac_cv_header_dirsrv_slapi-plugin_h" = "xno" ; then
AC_MSG_ERROR([Required 389-ds header not available (389-ds-base-devel)])
fi
AC_CHECK_HEADER(dirsrv/repl-session-plugin.h)
if test "x$ac_cv_header_dirsrv_repl_session_plugin_h" = "xno" ; then
AC_MSG_ERROR([Required 389-ds header not available (389-ds-base-devel)])
fi
CPPFLAGS=$SAVE_CPPFLAGS
if test "x$ac_cv_header_dirsrv_slapi_plugin_h" = "xno" ; then
AC_MSG_ERROR([Required DS slapi plugin header not available (fedora-ds-base-devel)])
fi
AC_CHECK_FUNC(timegm, [], [AC_MSG_ERROR([timegm not found])])
dnl -- dirsrv is needed for the extdom unit tests --
PKG_CHECK_MODULES([DIRSRV], [dirsrv >= 1.3.0])
# slapi-plugin.h includes nspr.h
DIRSRV_CFLAGS="$DIRSRV_CFLAGS $NSPR_CFLAGS"
dnl -- sss_idmap is needed by the extdom exop --
PKG_CHECK_MODULES([SSSIDMAP], [sss_idmap])
PKG_CHECK_MODULES([SSSNSSIDMAP], [sss_nss_idmap >= 1.15.2])
AC_CHECK_LIB([sss_nss_idmap],
[sss_nss_getlistbycert],
[ ],
[AC_MSG_ERROR([Required sss_nss_getlistbycert symbol in sss_nss_idmap not found])],
[])
dnl --- if sss_nss_idmap provides _timeout() API, use it
bck_cflags="$CFLAGS"
CFLAGS="$CFLAGS -DIPA_389DS_PLUGIN_HELPER_CALLS"
AC_CHECK_DECLS([sss_nss_getpwnam_timeout], [], [], [[#include <sss_nss_idmap.h>]])
CFLAGS="$bck_cflags"
if test "x$ac_cv_have_decl_sss_nss_getpwnam_timeout" = xyes ; then
AC_DEFINE(USE_SSS_NSS_TIMEOUT,1,[Use extended NSS API provided by SSSD])
fi
dnl -- sss_certmap and certauth.h are needed by the IPA KDB certauth plugin --
PKG_CHECK_EXISTS([sss_certmap],
[PKG_CHECK_MODULES([SSSCERTMAP], [sss_certmap])],
[AC_MSG_NOTICE([sss_certmap not found])])
AC_CHECK_HEADER([krb5/certauth_plugin.h],
[have_certauth_plugin=yes],
[have_certauth_plugin=no])
dnl -- Check if we can build the kdcpolicy plugin
AC_CHECK_HEADER([krb5/kdcpolicy_plugin.h],
[have_kdcpolicy_plugin=yes],
[have_kdcpolicy_plugin=no])
dnl ---------------------------------------------------------------------------
dnl - Check for KRB5 krad
dnl ---------------------------------------------------------------------------
AC_CHECK_HEADER(krad.h, [], [AC_MSG_ERROR([krad.h not found])])
AC_CHECK_LIB(krad, main, [ ], [AC_MSG_ERROR([libkrad not found])])
KRAD_LIBS="-lkrad"
krb5rundir="${runstatedir}/krb5kdc"
AC_SUBST(KRAD_LIBS)
AC_SUBST(krb5rundir)
dnl ---------------------------------------------------------------------------
dnl - Check for UUID library
dnl ---------------------------------------------------------------------------
PKG_CHECK_MODULES([UUID], [uuid])
dnl ---------------------------------------------------------------------------
dnl Check for ndr_krb5pac and other samba libraries
dnl ---------------------------------------------------------------------------
PKG_CHECK_MODULES([TALLOC], [talloc])
PKG_CHECK_MODULES([TEVENT], [tevent])
PKG_CHECK_MODULES([NDRPAC], [ndr_krb5pac])
PKG_CHECK_MODULES([NDRNBT], [ndr_nbt])
PKG_CHECK_MODULES([NDR], [ndr])
PKG_CHECK_MODULES([SAMBAUTIL], [samba-util])
SAMBA40EXTRA_LIBPATH="-L`$PKG_CONFIG --variable=libdir samba-util`/samba -Wl,-rpath=`$PKG_CONFIG --variable=libdir samba-util`/samba"
AC_SUBST(SAMBA40EXTRA_LIBPATH)
bck_cflags="$CFLAGS"
CFLAGS="$NDRPAC_CFLAGS"
AC_CHECK_MEMBER(
[struct PAC_DOMAIN_GROUP_MEMBERSHIP.domain_sid],
[AC_DEFINE([HAVE_STRUCT_PAC_DOMAIN_GROUP_MEMBERSHIP], [1],
[struct PAC_DOMAIN_GROUP_MEMBERSHIP is available.])],
[AC_MSG_NOTICE([struct PAC_DOMAIN_GROUP_MEMBERSHIP is not available])],
[[#include <ndr.h>
#include <gen_ndr/krb5pac.h>]])
CFLAGS="$bck_cflags"
LIBPDB_NAME=""
AC_CHECK_LIB([samba-passdb],
[make_pdb_method],
[LIBPDB_NAME="samba-passdb"; HAVE_LIBPDB=1],
[LIBPDB_NAME="pdb"],
[$SAMBA40EXTRA_LIBPATH])
if test "x$LIB_PDB_NAME" = "xpdb" ; then
AC_CHECK_LIB([$LIBPDB_NAME],
[make_pdb_method],
[HAVE_LIBPDB=1],
[AC_MSG_ERROR([Neither libpdb nor libsamba-passdb does have make_pdb_method])],
[$SAMBA40EXTRA_LIBPATH])
fi
AC_SUBST(LIBPDB_NAME)
AC_CHECK_LIB([$LIBPDB_NAME],[pdb_enum_upn_suffixes],
[AC_DEFINE([HAVE_PDB_ENUM_UPN_SUFFIXES], [1], [Ability to enumerate UPN suffixes])],
[AC_MSG_WARN([libpdb does not have pdb_enum_upn_suffixes, no support for realm domains in ipasam])],
[$SAMBA40EXTRA_LIBPATH])
AC_CHECK_LIB([smbldap],[smbldap_get_ldap],
[AC_DEFINE([HAVE_SMBLDAP_GET_LDAP], [1], [struct smbldap_state is opaque])],
[AC_MSG_WARN([libsmbldap is not opaque, not using smbldap_get_ldap])],
[$SAMBA40EXTRA_LIBPATH])
AC_CHECK_LIB([smbldap],[smbldap_set_bind_callback],
[AC_DEFINE([HAVE_SMBLDAP_SET_BIND_CALLBACK], [1], [struct smbldap_state is opaque])],
[AC_MSG_WARN([libsmbldap is not opaque, not using smbldap_set_bind_callback])],
[$SAMBA40EXTRA_LIBPATH])
dnl ---------------------------------------------------------------------------
dnl Check for libunistring
dnl ---------------------------------------------------------------------------
AC_CHECK_HEADERS([unicase.h],,AC_MSG_ERROR([Could not find unicase.h]))
AC_CHECK_LIB([unistring],
[ulc_casecmp],
[UNISTRING_LIBS="-lunistring"],
[AC_MSG_ERROR([libunistring does not have ulc_casecmp])])
AC_SUBST(UNISTRING_LIBS)
dnl ---------------------------------------------------------------------------
dnl Check for libverto
dnl ---------------------------------------------------------------------------
PKG_CHECK_MODULES([LIBVERTO], [libverto])
dnl ---------------------------------------------------------------------------
dnl Check for unshare(2) - Linux-only. We also check for chroot(2) as we use both
dnl ---------------------------------------------------------------------------
AC_CHECK_HEADER(sched.h, [
AC_CHECK_FUNC(unshare, [], [AC_MSG_WARN([unshare not found, no extdom unit tests to be run])])
AC_CHECK_FUNC(chroot, [], [AC_MSG_WARN([chroot not found, no extdom unit tests to be run])])
], [AC_MSG_WARN([sched.h not found, unshare is not available])])
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