strongswan: fix musl builds, reenable lost modules

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

net/strongswan/Makefile

@@ -70,6 +70,7 @@ PKG_MOD_AVAILABLE:= \
 	smp \
 	socket-default \
 	socket-dynamic \
+	sql \
 	sqlite \
 	stroke \
 	test-vectors \
@@ -177,6 +178,7 @@ $(call Package/strongswan/Default)
 	+strongswan-mod-sha2 \
 	+strongswan-mod-smp \
 	+strongswan-mod-socket-default \
+	+strongswan-mod-sql \
 	+strongswan-mod-sqlite \
 	+strongswan-mod-stroke \
 	+strongswan-mod-test-vectors \
@@ -462,7 +464,7 @@ $(eval $(call BuildPlugin,load-tester,load testing,))
 $(eval $(call BuildPlugin,nonce,nonce genereation,))
 $(eval $(call BuildPlugin,md4,MD4 crypto,))
 $(eval $(call BuildPlugin,md5,MD5 crypto,))
-$(eval $(call BuildPlugin,mysql,MySQL database interface,+PACKAGE_strongswan-mod-mysql:libmysqlclient-r))
+$(eval $(call BuildPlugin,mysql,MySQL database interface,+strongswan-mod-sql +PACKAGE_strongswan-mod-mysql:libmysqlclient-r))
 $(eval $(call BuildPlugin,openssl,OpenSSL crypto,+PACKAGE_strongswan-mod-openssl:libopenssl))
 $(eval $(call BuildPlugin,pem,PEM decoding,))
 $(eval $(call BuildPlugin,pgp,PGP key decoding,))
@@ -478,7 +480,8 @@ $(eval $(call BuildPlugin,sha2,SHA2 crypto,))
 $(eval $(call BuildPlugin,smp,SMP configuration and control interface,+PACKAGE_strongswan-mod-smp:libxml2))
 $(eval $(call BuildPlugin,socket-default,default socket implementation for charon,))
 $(eval $(call BuildPlugin,socket-dynamic,dynamic socket implementation for charon,))
-$(eval $(call BuildPlugin,sqlite,SQLite database interface,+PACKAGE_strongswan-mod-sqlite:libsqlite3))
+$(eval $(call BuildPlugin,sql,SQL database interface,))
+$(eval $(call BuildPlugin,sqlite,SQLite database interface,+strongswan-mod-sql +PACKAGE_strongswan-mod-sqlite:libsqlite3))
 $(eval $(call BuildPlugin,stroke,Stroke,+strongswan-utils))
 $(eval $(call BuildPlugin,test-vectors,crypto test vectors,))
 $(eval $(call BuildPlugin,uci,UCI config interface,+PACKAGE_strongswan-mod-uci:libuci))

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>