crtools: add a function for showing netlink sockets

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Makefile.crtools

@@ -19,6 +19,7 @@ obj-y	+= sk-inet.o
 obj-y	+= sk-tcp.o
 obj-y	+= sk-unix.o
 obj-y	+= sk-packet.o
+obj-y	+= sk-netlink.o
 obj-y	+= sk-queue.o
 obj-y	+= files.o
 obj-y	+= files-reg.o

include/sockets.h

@@ -42,6 +42,7 @@ extern int resolve_unix_peers(void);
 extern void show_unixsk(int fd, struct cr_options *o);
 extern void show_inetsk(int fd, struct cr_options *o);
 extern void show_sk_queues(int fd, struct cr_options *o);
+extern void show_netlinksk(int fd, struct cr_options *o);
 
 extern char *skfamily2s(u32 f);
 extern char *sktype2s(u32 t);

sk-netlink.c

+#include <unistd.h>
+
+#include "crtools.h"
+
+#include "protobuf.h"
+#include "protobuf/sk-netlink.pb-c.h"
+
+void show_netlinksk(int fd, struct cr_options *o)
+{
+	pb_show_plain(fd, PB_NETLINKSK);
+}