Add if_inc_counter() and if_get_counter_default() functions that do

access to ifnet counters for code compatibility with FreeBSD 11.

This is direct commit to stable/10.

Discussed with:	glebius@, arch@

1 files changed, 18 insertions, 0 deletions

diff --git a/sys/net/if_var.h b/sys/net/if_var.h
index e6ed31b..58391a1 100644
--- a/sys/net/if_var.h
+++ b/sys/net/if_var.h
@@ -104,6 +104,22 @@ VNET_DECLARE(struct pfil_head, link_pfil_hook);	/* packet filter hooks */
 #define	V_link_pfil_hook	VNET(link_pfil_hook)
 #endif /* _KERNEL */
 
+typedef enum {
+	IFCOUNTER_IPACKETS = 0,
+	IFCOUNTER_IERRORS,
+	IFCOUNTER_OPACKETS,
+	IFCOUNTER_OERRORS,
+	IFCOUNTER_COLLISIONS,
+	IFCOUNTER_IBYTES,
+	IFCOUNTER_OBYTES,
+	IFCOUNTER_IMCASTS,
+	IFCOUNTER_OMCASTS,
+	IFCOUNTER_IQDROPS,
+	IFCOUNTER_OQDROPS,
+	IFCOUNTER_NOPROTO,
+	IFCOUNTERS /* Array size. */
+} ift_counter;
+
 /*
  * Structure defining a queue for a network interface.
  */
@@ -981,6 +997,8 @@ typedef	void *if_com_alloc_t(u_char type, struct ifnet *ifp);
 typedef	void if_com_free_t(void *com, u_char type);
 void	if_register_com_alloc(u_char type, if_com_alloc_t *a, if_com_free_t *f);
 void	if_deregister_com_alloc(u_char type);
+uint64_t if_get_counter_default(struct ifnet *, ift_counter);
+void	if_inc_counter(struct ifnet *, ift_counter, int64_t);
 
 #define IF_LLADDR(ifp)							\
     LLADDR((struct sockaddr_dl *)((ifp)->if_addr->ifa_addr))