[PATCH libnetfilter_queue v2 14/15] include: Use libmnl.h instead of libnfnetlink.h

[Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx>]

Add nlif_* prototypes and 64-bit converters to libnetfilter_queue.h.
Update (deprecated) include/libnetfilter_queue/linux_nfnetlink_queue.h
to use /usr/include/linux/nfnetlink.h
instead of libnfnetlink/linux_nfnetlink.h
As an aside, everything compiles fine with this line removed
(i.e library, utils and examples all compile),
so maybe we can do without it.

Signed-off-by: Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx>
---
 Changes in v2:
 - This was patch 18 v1
 - Update commit message:
   - libnetfilter_queue.c has no libnfnetlink.h references
     (removed in patch 6 v2).
   - Incorporate patch 22 v1

 .../libnetfilter_queue/libnetfilter_queue.h   | 36 ++++++++++++++++++-
 .../linux_nfnetlink_queue.h                   |  3 +-
 2 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/include/libnetfilter_queue/libnetfilter_queue.h b/include/libnetfilter_queue/libnetfilter_queue.h
index 9327f8c..46289f2 100644
--- a/include/libnetfilter_queue/libnetfilter_queue.h
+++ b/include/libnetfilter_queue/libnetfilter_queue.h
@@ -14,7 +14,7 @@
 #define __LIBCTNETLINK_H
 
 #include <sys/time.h>
-#include <libnfnetlink/libnfnetlink.h>
+#include <libmnl/libmnl.h>
 
 #include <libnetfilter_queue/linux_nfnetlink_queue.h>
 
@@ -25,6 +25,7 @@ extern "C" {
 struct nfq_handle;
 struct nfq_q_handle;
 struct nfq_data;
+struct nlif_handle;
 
 extern int nfq_errno;
 
@@ -155,8 +156,41 @@ int nfq_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr **attr);
 struct nlmsghdr *nfq_nlmsg_put(char *buf, int type, uint32_t queue_num);
 struct nlmsghdr *nfq_nlmsg_put2(char *buf, int type, uint32_t queue_num, uint16_t flags);
 
+/*
+ * Network Interface Table API
+ */
+
+#ifndef IFNAMSIZ
+#define IFNAMSIZ 16
+#endif
+
+struct nlif_handle *nlif_open(void);
+void nlif_close(struct nlif_handle *orig);
+int nlif_fd(struct nlif_handle *nlif_handle);
+int nlif_query(struct nlif_handle *nlif_handle);
+int nlif_catch(struct nlif_handle *nlif_handle);
+int nlif_index2name(struct nlif_handle *nlif_handle, unsigned int if_index, char *name);
+int nlif_get_ifflags(const struct nlif_handle *h, unsigned int index, unsigned int *flags);
+
 #ifdef __cplusplus
 } /* extern "C" */
 #endif
 
+/*
+ * __be46 stuff - should be in libmnl.h maybe?
+ */
+
+#include <byteswap.h>
+#if __BYTE_ORDER == __BIG_ENDIAN
+#  ifndef __be64_to_cpu
+#  define __be64_to_cpu(x)     (x)
+#  endif
+# else
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  ifndef __be64_to_cpu
+#  define __be64_to_cpu(x)     __bswap_64(x)
+#  endif
+# endif
+#endif
+
 #endif	/* __LIBNFQNETLINK_H */
diff --git a/include/libnetfilter_queue/linux_nfnetlink_queue.h b/include/libnetfilter_queue/linux_nfnetlink_queue.h
index 6844270..82d8ece 100644
--- a/include/libnetfilter_queue/linux_nfnetlink_queue.h
+++ b/include/libnetfilter_queue/linux_nfnetlink_queue.h
@@ -8,7 +8,8 @@
 #endif
 
 #include <linux/types.h>
-#include <libnfnetlink/linux_nfnetlink.h>
+/* Use the real header since libnfnetlink is going away. */
+#include <linux/nfnetlink.h>
 
 enum nfqnl_msg_types {
 	NFQNL_MSG_PACKET,		/* packet from kernel to userspace */
-- 
2.35.8