diff mbox series

[libnetfilter_queue,18/32] include: Use libmnl.h instead of libnfnetlink.h

Message ID 20240315073347.22628-19-duncan_roe@optusnet.com.au
State New
Headers show
Series [libnetfilter_queue,01/32] src: Convert nfq_open() to use libmnl | expand

Commit Message

Duncan Roe March 15, 2024, 7:33 a.m. UTC 
Add nlif_* prototypes and 64-bit converters to libnetfilter_queue.h.
Fix a couple of libnfnetlink.h references still in libnetfilter_queue.c.

Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au>
---
 .../libnetfilter_queue/libnetfilter_queue.h   | 36 ++++++++++++++++++-
 src/libnetfilter_queue.c                      |  4 +--
 2 files changed, 37 insertions(+), 3 deletions(-)
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Patch

diff --git a/include/libnetfilter_queue/libnetfilter_queue.h b/include/libnetfilter_queue/libnetfilter_queue.h
index 9bd9c43..84a8a7e 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_list.h>
 #include <libnetfilter_queue/linux_nfnetlink_queue.h>
@@ -26,6 +26,7 @@  extern "C" {
 struct nfq_handle;
 struct nfq_q_handle;
 struct nfq_data;
+struct nlif_handle;
 
 extern int nfq_errno;
 
@@ -156,8 +157,41 @@  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/src/libnetfilter_queue.c b/src/libnetfilter_queue.c
index 2f50b47..3c3f951 100644
--- a/src/libnetfilter_queue.c
+++ b/src/libnetfilter_queue.c
@@ -151,7 +151,7 @@  struct nfnl_subsys_handle {
 	uint32_t		subscriptions;
 	uint8_t			subsys_id;
 	uint8_t			cb_count;
-	struct nfnl_callback	*cb;	/* array of callbacks */
+	struct nfnl_callback2	*cb; /* Not an exact copy: array of callbacks */
 };
 
 struct nfnl_handle {
@@ -479,7 +479,7 @@  struct nfq_handle *nfq_open(void)
 	h->nfnlh->fd = h->nl->fd;
 	h->nfnlh->local = h->nl->addr;
 	h->nfnlh->peer.nl_family = AF_NETLINK;
-	h->nfnlh->rcv_buffer_size = NFNL_BUFFSIZE;
+	h->nfnlh->rcv_buffer_size = MNL_SOCKET_BUFFER_SIZE;
 
 	if (!fill_nfnl_subsys_handle(h))
 		goto err_close;