It is time.
Automatically disabled when
- iproute2 is enabled
- libnl-genl is missing on Linux
- libnv is missing on FreeBSD
Signed-off-by: Frank Lichtenheld <fr...@lichtenheld.com>
---
configure.ac | 79 +++++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 62 insertions(+), 17 deletions(-)
diff --git a/configure.ac b/configure.ac
index 91500087..808b9c06 100644
--- a/configure.ac
+++ b/configure.ac
@@ -144,14 +144,27 @@ AC_ARG_ENABLE(
AC_ARG_ENABLE(
[dco],
- [AS_HELP_STRING([--enable-dco], [enable data channel offload support
using the ovpn-dco kernel module (always enabled on Windows)
@<:@default=no@:>@])],
+ [AS_HELP_STRING([--disable-dco], [enable data channel offload support
using the ovpn-dco kernel module (always enabled on Windows)
@<:@default=yes@:>@])],
,
- [enable_dco="no"]
+ [
+ case "$host" in
+ *-*-linux*)
+ enable_dco="auto"
+ ;;
+ *-*-freebsd*)
+ enable_dco="auto"
+ ;;
+ *)
+ # note that this does not disable it for Windows
+ enable_dco="no"
+ ;;
+ esac
+ ]
)
AC_ARG_ENABLE(
[iproute2],
- [AS_HELP_STRING([--enable-iproute2], [enable support for iproute2
@<:@default=no@:>@])],
+ [AS_HELP_STRING([--enable-iproute2], [enable support for iproute2
(disables DCO) @<:@default=no@:>@])],
,
[enable_iproute2="no"]
)
@@ -534,7 +547,7 @@ AC_CHECK_DECLS(
,
[[${SOCKET_INCLUDES}]]
)
-AC_CHECKING([anonymous union support])
+AC_MSG_CHECKING([anonymous union support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[
@@ -769,28 +782,60 @@ PKG_CHECK_MODULES(
)
-if test "$enable_dco" = "yes"; then
+if test "$enable_dco" != "no"; then
+ enable_dco_arg="$enable_dco"
+ if test "${enable_iproute2}" = "yes"; then
+ AC_MSG_WARN([iproute2 support cannot be enabled when using DCO])
+ enable_dco="no"
+ fi
+ case "$host" in
+ *-*-linux*)
dnl
dnl Include generic netlink library used to talk to ovpn-dco
dnl
- case "$host" in
- *-*-linux*)
PKG_CHECK_MODULES([LIBNL_GENL],
[libnl-genl-3.0 >= 3.4.0],
[have_libnl="yes"],
- [AC_MSG_ERROR([libnl-genl-3.0 package
not found or too old. Is the development package and pkg-config installed? Must
be version 3.4.0 or newer])]
+ [
+ AC_MSG_WARN([libnl-genl-3.0 package
not found or too old. Is the development package and pkg-config installed? Must
be version 3.4.0 or newer for DCO])
+ enable_dco="no"
+ ]
)
-
- CFLAGS="${CFLAGS} ${LIBNL_GENL_CFLAGS}"
- LIBS="${LIBS} ${LIBNL_GENL_LIBS}"
-
- AC_DEFINE(ENABLE_DCO, 1, [Enable shared data channel
offload])
- AC_MSG_NOTICE([Enabled ovpn-dco support for Linux])
+ if test "$enable_dco" = "no"; then
+ if test "$enable_dco_arg" = "auto"; then
+ AC_MSG_WARN([DCO support disabled])
+ else
+ AC_MSG_ERROR([DCO support can't be
enabled])
+ fi
+ else
+ CFLAGS="${CFLAGS} ${LIBNL_GENL_CFLAGS}"
+ LIBS="${LIBS} ${LIBNL_GENL_LIBS}"
+
+ AC_DEFINE(ENABLE_DCO, 1, [Enable shared data
channel offload])
+ AC_MSG_NOTICE([Enabled ovpn-dco support for
Linux])
+ fi
;;
*-*-freebsd*)
- LIBS="${LIBS} -lnv"
- AC_DEFINE(ENABLE_DCO, 1, [Enable data channel offload
for FreeBSD])
- AC_MSG_NOTICE([Enabled ovpn-dco support for FreeBSD])
+ AC_CHECK_LIB(
+ [nv],
+ [nvlist_create],
+ [
+ LIBS="${LIBS} -lnv"
+ AC_DEFINE(ENABLE_DCO, 1, [Enable data channel
offload for FreeBSD])
+ AC_MSG_NOTICE([Enabled ovpn-dco support for
FreeBSD])
+ ],
+ [
+ enable_dco="no"
+ AC_MSG_WARN([Name/Value pair library not
found.])
+ ]
+ )
+ if test "$enable_dco" = "no"; then
+ if test "$enable_dco_arg" = "auto"; then
+ AC_MSG_WARN([DCO support disabled])
+ else
+ AC_MSG_ERROR([DCO support can't be
enabled])
+ fi
+ fi
;;
*-mingw*)
AC_MSG_NOTICE([NOTE: --enable-dco ignored on Windows
because it's always enabled])
--
2.34.1
_______________________________________________
Openvpn-devel mailing list
Openvpn-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/openvpn-devel
