Do not rely on system symbol throught sources
but on autoconf detection.
Signed-off-by: Alon Bar-Lev <alon.bar...@gmail.com>
---
configure.ac | 10 ++++++++++
src/openvpn/init.c | 2 +-
src/openvpn/options.c | 8 ++++----
src/openvpn/tun.c | 4 ++--
4 files changed, 17 insertions(+), 7 deletions(-)
diff --git a/configure.ac b/configure.ac
index 0f1ca99..d40f7dc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -595,6 +595,16 @@ AC_CHECK_HEADERS(
],
[have_tap_header="yes"]
)
+AC_CHECK_DECLS(
+ [TUNSETPERSIST],
+ [AC_DEFINE([ENABLE_FEATURE_TUN_PERSIST], [1], [We have persist tun
capability])],
+ ,
+ [[
+ #ifdef HAVE_LINUX_IF_TUN_H
+ #include <linux/if_tun.h>
+ #endif
+ ]]
+)
CFLAGS="${old_CFLAGS}"
test "${have_tap_header}" = "yes" || AC_MSG_ERROR([no tap header could be
found])
diff --git a/src/openvpn/init.c b/src/openvpn/init.c
index bc7718e..d022edc 100644
--- a/src/openvpn/init.c
+++ b/src/openvpn/init.c
@@ -954,7 +954,7 @@ do_genkey (const struct options * options)
bool
do_persist_tuntap (const struct options *options)
{
-#ifdef TUNSETPERSIST
+#ifdef ENABLE_FEATURE_TUN_PERSIST
if (options->persist_config)
{
/* sanity check on options for --mktun or --rmtun */
diff --git a/src/openvpn/options.c b/src/openvpn/options.c
index bd83843..33fcb87 100644
--- a/src/openvpn/options.c
+++ b/src/openvpn/options.c
@@ -725,7 +725,7 @@ static const char usage_message[] =
" for use with the --secret option.\n"
"--secret file : Write key to file.\n"
#endif /* ENABLE_CRYPTO */
-#ifdef TUNSETPERSIST
+#ifdef ENABLE_FEATURE_TUN_PERSIST
"\n"
"Tun/tap config mode (available with linux 2.4+):\n"
"--mktun : Create a persistent tunnel.\n"
@@ -791,7 +791,7 @@ init_options (struct options *o, const bool init_gc)
o->management_echo_buffer_size = 100;
o->management_state_buffer_size = 100;
#endif
-#ifdef TUNSETPERSIST
+#ifdef ENABLE_FEATURE_TUN_PERSIST
o->persist_mode = 1;
#endif
#ifndef WIN32
@@ -1420,7 +1420,7 @@ show_settings (const struct options *o)
SHOW_INT (mode);
-#ifdef TUNSETPERSIST
+#ifdef ENABLE_FEATURE_TUN_PERSIST
SHOW_BOOL (persist_config);
SHOW_INT (persist_mode);
#endif
@@ -6788,7 +6788,7 @@ add_option (struct options *options,
options->pkcs11_id_management = true;
}
#endif
-#ifdef TUNSETPERSIST
+#ifdef ENABLE_FEATURE_TUN_PERSIST
else if (streq (p[0], "rmtun"))
{
VERIFY_PERMISSION (OPT_P_GENERAL);
diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
index b99071c..227bfde 100644
--- a/src/openvpn/tun.c
+++ b/src/openvpn/tun.c
@@ -1517,7 +1517,7 @@ open_tun (const char *dev, const char *dev_type, const
char *dev_node, struct tu
#endif /* HAVE_LINUX_IF_TUN_H */
-#ifdef TUNSETPERSIST
+#ifdef ENABLE_FEATURE_TUN_PERSIST
/*
* This can be removed in future
@@ -1567,7 +1567,7 @@ tuncfg (const char *dev, const char *dev_type, const char
*dev_node, int persist
msg (M_INFO, "Persist state set to: %s", (persist_mode ? "ON" : "OFF"));
}
-#endif /* TUNSETPERSIST */
+#endif /* ENABLE_FEATURE_TUN_PERSIST */
void
close_tun (struct tuntap *tt)
--
1.7.3.4
