Signed-off-by: Alon Bar-Lev <alon.bar...@gmail.com>
---
 configure.ac               |   49 ++++++++++++++++---------------------------
 distro/rpm/openvpn.spec.in |    5 ++-
 src/openvpn/Makefile.am    |    4 +++
 src/openvpn/ssl.c          |    2 +-
 src/openvpn/syshead.h      |    7 ------
 5 files changed, 26 insertions(+), 41 deletions(-)

diff --git a/configure.ac b/configure.ac
index 2388f17..baa66b2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -111,9 +111,9 @@ AC_ARG_ENABLE(

 AC_ARG_ENABLE(
        [pkcs11],
-       [AS_HELP_STRING([--disable-pkcs11], [disable pkcs11 support])],
+       [AS_HELP_STRING([--enable-pkcs11], [enable pkcs11 support])],
        ,
-       [enable_pkcs11="yes"]
+       [enable_pkcs11="no"]
 )

 AC_ARG_ENABLE(
@@ -254,19 +254,6 @@ AC_ARG_WITH(
 )

 AC_ARG_WITH(
-       [pkcs11-helper-headers],
-       [AS_HELP_STRING([--with-pkcs11-helper-headers=DIR], [pkcs11-helper 
Include files location])],
-       [PKCS11_HELPER_HDR_DIR="$withval"]
-       [CPPFLAGS="$CPPFLAGS -I$withval"] 
-)
-
-AC_ARG_WITH(
-       [pkcs11-helper-lib],
-       [AS_HELP_STRING([--with-pkcs11-helper-lib=DIR], [pkcs11-helper Library 
location])],
-       [LDFLAGS="$LDFLAGS -L$withval"] 
-)
-
-AC_ARG_WITH(
        [mem-check],
        [AS_HELP_STRING([--with-mem-check=TYPE], [build with debug memory 
checking, TYPE=dmalloc|valgrind|ssl])],
        [
@@ -719,22 +706,12 @@ if test "${enable_lzo_stub}" = "yes"; then
        AC_DEFINE([LZO_STUB], [1], [Enable LZO stub capability])
 fi

-dnl
-dnl enable pkcs11 capability
-dnl
-if test "${enable_pkcs11}" = "yes"; then
-   AC_CHECKING([for pkcs11-helper Library and Header files])
-   AC_CHECK_HEADER(pkcs11-helper-1.0/pkcs11h-core.h,
-       [AC_CHECK_LIB(pkcs11-helper, pkcs11h_initialize,
-           [
-                  AC_DEFINE(USE_PKCS11, 1, [Enable PKCS11 capability])
-                  LIBS="${LIBS} -lpkcs11-helper"
-           ],
-           [AC_MSG_RESULT([pkcs11-helper library not found.])]
-       )],
-       [AC_MSG_RESULT([pkcs11-helper headers not found.])]
-   )
-fi
+PKG_CHECK_MODULES(
+       [PKCS11_HELPER],
+       [libpkcs11-helper-1 >= 1.02],
+       [have_pkcs11_helper="yes"],
+       []
+)

 dnl
 dnl check for SSL-crypto library
@@ -890,6 +867,14 @@ if test "${enable_selinux}" = "yes"; then
        AC_DEFINE([ENABLE_SELINUX], [1], [SELinux support])
 fi

+if test "${enable_pkcs11}" = "yes"; then
+       test "${have_pkcs11_helper}" != "yes" && AC_MSG_ERROR([PKCS11 enabled 
but libpkcs11-helper is missing])
+       test "${enable_ssl}" != "yes" && AC_MSG_ERROR([PKCS11 can be enabled 
only if SSL is enabled])
+       OPTIONAL_PKCS11_HELPER_CFLAGS="${PKCS11_HELPER_CFLAGS}"
+       OPTIONAL_PKCS11_HELPER_LIBS="${PKCS11_HELPER_LIBS}"
+       AC_DEFINE([ENABLE_PKCS11], [1], [Enable PKCS11])
+fi
+
 if test "${enable_pedantic}" = "yes"; then
        enable_strict="yes"
        CFLAGS="${CFLAGS} -ansi -pedantic"
@@ -917,6 +902,8 @@ AC_SUBST([TAP_WIN_MIN_MINOR])

 AC_SUBST([OPTIONAL_DL_LIBS])
 AC_SUBST([OPTIONAL_SELINUX_LIBS])
+AC_SUBST([OPTIONAL_PKCS11_HELPER_CFLAGS])
+AC_SUBST([OPTIONAL_PKCS11_HELPER_LIBS])

 AM_CONDITIONAL([WIN32], [test "${WIN32}" = "yes"])

diff --git a/distro/rpm/openvpn.spec.in b/distro/rpm/openvpn.spec.in
index 455f739..8db5172 100644
--- a/distro/rpm/openvpn.spec.in
+++ b/distro/rpm/openvpn.spec.in
@@ -52,8 +52,8 @@ Requires:      openssl       >= 0.9.6
 %{!?without_pam:BuildRequires: pam-devel}
 %{!?without_pam:Requires:      pam}

-%{!?with_pkcs11:BuildRequires: pkcs11-helper-devel}
-%{!?with_pkcs11:Requires:      pkcs11-helper}
+%{?with_pkcs11:BuildRequires: pkcs11-helper-devel}
+%{?with_pkcs11:Requires:      pkcs11-helper}

 #
 # Description
@@ -111,6 +111,7 @@ Development support for OpenVPN.
        --docdir="%{_docdir}/%{name}-%{version}" \
        %{?with_password_save:--enable-password-save} \
        %{?without_lzo:--disable-lzo} \
+       %{?with_pkcs11:--enable-pkcs11} \
        %{?with_kerberos:--with-ssl-headers=/usr/kerberos/include}
 %__make

diff --git a/src/openvpn/Makefile.am b/src/openvpn/Makefile.am
index a3f8b3a..fd92225 100644
--- a/src/openvpn/Makefile.am
+++ b/src/openvpn/Makefile.am
@@ -16,6 +16,9 @@ MAINTAINERCLEANFILES = \

 INCLUDES = -I$(top_srcdir)/include

+AM_CFLAGS = \
+       $(OPTIONAL_PKCS11_HELPER_CFLAGS)
+
 sbin_PROGRAMS = openvpn

 openvpn_SOURCES = \
@@ -97,6 +100,7 @@ openvpn_SOURCES = \
        cryptoapi.h cryptoapi.c
 openvpn_LDADD = \
        $(SOCKETS_LIBS) \
+       $(OPTIONAL_PKCS11_HELPER_LIBS) \
        $(OPTIONAL_SELINUX_LIBS) \
        $(OPTIONAL_DL_LIBS)
 if WIN32
diff --git a/src/openvpn/ssl.c b/src/openvpn/ssl.c
index c26756e..e260718 100644
--- a/src/openvpn/ssl.c
+++ b/src/openvpn/ssl.c
@@ -264,7 +264,7 @@ ssl_purge_auth (const bool auth_user_pass_only)
 {
   if (!auth_user_pass_only)
     {
-#ifdef USE_PKCS11
+#ifdef ENABLE_PKCS11
       pkcs11_logout ();
 #endif
       purge_user_pass (&passbuf, true);
diff --git a/src/openvpn/syshead.h b/src/openvpn/syshead.h
index cac4757..53b7580 100644
--- a/src/openvpn/syshead.h
+++ b/src/openvpn/syshead.h
@@ -590,13 +590,6 @@ socket_defined (const socket_descriptor_t sd)
 #endif

 /*
- * Do we have PKCS11 capability?
- */
-#if defined(USE_PKCS11) && defined(USE_CRYPTO) && defined(USE_SSL)
-#define ENABLE_PKCS11
-#endif
-
-/*
  * Do we have CryptoAPI capability?
  */
 #if defined(WIN32) && defined(USE_CRYPTO) && defined(USE_SSL) && 
defined(USE_OPENSSL)
-- 
1.7.3.4


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