strongswan: fix musl builds, reenable lost modules

Signed-off-by: Steven Barth <steven@midlink.org>

net/strongswan/patches/101-musl-fixes.patch

@@ -0,0 +1,73 @@
+--- a/src/libstrongswan/library.h
++++ b/src/libstrongswan/library.h
+@@ -118,6 +118,7 @@
+ #include "utils/leak_detective.h"
+ #include "plugins/plugin_loader.h"
+ #include "settings/settings.h"
++#include "musl.h"
+ 
+ typedef struct library_t library_t;
+ 
+--- /dev/null
++++ b/src/libstrongswan/musl.h
+@@ -0,0 +1,27 @@
++#include <sys/types.h>
++
++#define crypt x_crypt
++#define encrypt x_encrypt
++#include <unistd.h>
++
++#define fd_set x_fd_set
++#define ino_t x_ino_t
++#define off_t x_off_t
++#define loff_t x_loff_t
++#define dev_t x_dev_t
++#define nlink_t x_nlink_t
++#define timer_t x_timer_t
++#define blkcnt_t x_blkcnt_t
++#define __kernel_nlink_t void
++
++#include <linux/types.h>
++
++#undef fd_set
++#undef ino_t
++#undef off_t
++#undef dev_t
++#undef nlink_t
++#undef timer_t
++#undef blkcnt_t
++#undef crypt
++#undef encrypt
+--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
++++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
+@@ -18,6 +18,8 @@
+  * for more details.
+  */
+ 
++#include <musl.h>
++
+ #include <sys/types.h>
+ #include <sys/socket.h>
+ #include <stdint.h>
+--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
++++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
+@@ -37,6 +37,8 @@
+  * THE SOFTWARE.
+  */
+ 
++#include "musl.h"
++
+ #include <sys/socket.h>
+ #include <sys/utsname.h>
+ #include <linux/netlink.h>
+--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.c
++++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.c
+@@ -15,6 +15,8 @@
+  * for more details.
+  */
+ 
++#include "musl.h"
++
+ #include <sys/socket.h>
+ #include <linux/netlink.h>
+ #include <linux/rtnetlink.h>