IfAPI: Add capabilities2/capenable2 accessors

Summary:
As a stopgap measure add basic accessors for the if_capabilities2 and
if_capenable2 members to further hide the ifnet details.

Sponsored by:	Juniper Networks, Inc.
Reviewed by:	glebius, kib
Differential Revision: https://reviews.freebsd.org/D38487

2 files changed, 56 insertions, 0 deletions

diff --git a/sys/net/if.c b/sys/net/if.c
index d17738fda0b7..da684dedec73 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -4242,6 +4242,42 @@ if_setcapenablebit(if_t ifp, int setcap, int clearcap)
 	return (0);
 }
 
+int
+if_setcapabilities2(if_t ifp, int capabilities)
+{
+	ifp->if_capabilities2 = capabilities;
+	return (0);
+}
+
+int
+if_setcapabilities2bit(if_t ifp, int setbit, int clearbit)
+{
+	ifp->if_capabilities2 &= ~clearbit;
+	ifp->if_capabilities2 |= setbit;
+	return (0);
+}
+
+int
+if_getcapabilities2(const if_t ifp)
+{
+	return (ifp->if_capabilities2);
+}
+
+int
+if_setcapenable2(if_t ifp, int capabilities2)
+{
+	ifp->if_capenable2 = capabilities2;
+	return (0);
+}
+
+int
+if_setcapenable2bit(if_t ifp, int setcap, int clearcap)
+{
+	ifp->if_capenable2 &= ~clearcap;
+	ifp->if_capenable2 |= setcap;
+	return (0);
+}
+
 const char *
 if_getdname(const if_t ifp)
 {
@@ -4284,6 +4320,19 @@ if_getcapenable(const if_t ifp)
 }
 
 int
+if_togglecapenable2(if_t ifp, int togglecap)
+{
+	ifp->if_capenable2 ^= togglecap;
+	return (0);
+}
+
+int
+if_getcapenable2(const if_t ifp)
+{
+	return (ifp->if_capenable2);
+}
+
+int
 if_getdunit(const if_t ifp)
 {
 	return ((struct ifnet *)ifp)->if_dunit;
diff --git a/sys/net/if_var.h b/sys/net/if_var.h
index f6bb77908d40..ef3e3d71a262 100644
--- a/sys/net/if_var.h
+++ b/sys/net/if_var.h
@@ -576,6 +576,13 @@ int if_togglecapenable(if_t ifp, int togglecap);
 int if_setcapenable(if_t ifp, int capenable);
 int if_setcapenablebit(if_t ifp, int setcap, int clearcap);
 int if_getcapenable(const if_t ifp);
+int if_setcapabilities2(if_t ifp, int capabilities);
+int if_setcapabilities2bit(if_t ifp, int setbit, int clearbit);
+int if_getcapabilities2(const if_t ifp);
+int if_togglecapenable2(if_t ifp, int togglecap);
+int if_setcapenable2(if_t ifp, int capenable);
+int if_setcapenable2bit(if_t ifp, int setcap, int clearcap);
+int if_getcapenable2(const if_t ifp);
 int if_getdunit(const if_t ifp);
 int if_getindex(const if_t ifp);
 int if_getidxgen(const if_t ifp);