svn commit: r266997 - in projects/vxlan/sys: netinet netinet6

[Bryan Venteicher]

Author: bryanv
Date: Tue Jun  3 04:29:10 2014
New Revision: 266997
URL: http://svnweb.freebsd.org/changeset/base/266997

Log:
  Add an opaque context pointer to the UDP tunneling callback

Modified:
  projects/vxlan/sys/netinet/sctputil.c
  projects/vxlan/sys/netinet/udp_usrreq.c
  projects/vxlan/sys/netinet/udp_var.h
  projects/vxlan/sys/netinet6/udp6_usrreq.c

Modified: projects/vxlan/sys/netinet/sctputil.c
==============================================================================
--- projects/vxlan/sys/netinet/sctputil.c	Tue Jun  3 02:34:21 2014	(r266996)
+++ projects/vxlan/sys/netinet/sctputil.c	Tue Jun  3 04:29:10 2014	(r266997)
@@ -6800,7 +6800,7 @@ sctp_log_trace(uint32_t subsys, const ch
 #endif
 static void
 sctp_recv_udp_tunneled_packet(struct mbuf *m, int off, struct inpcb *ignored,
-    const struct sockaddr *sa SCTP_UNUSED)
+    const struct sockaddr *sa SCTP_UNUSED, void *ctx SCTP_UNUSED)
 {
 	struct ip *iph;
 
@@ -6936,7 +6936,7 @@ sctp_over_udp_start(void)
 	}
 	/* Call the special UDP hook. */
 	if ((ret = udp_set_kernel_tunneling(SCTP_BASE_INFO(udp4_tun_socket),
-	    sctp_recv_udp_tunneled_packet))) {
+	    sctp_recv_udp_tunneled_packet, NULL))) {
 		sctp_over_udp_stop();
 		return (ret);
 	}
@@ -6960,7 +6960,7 @@ sctp_over_udp_start(void)
 	}
 	/* Call the special UDP hook. */
 	if ((ret = udp_set_kernel_tunneling(SCTP_BASE_INFO(udp6_tun_socket),
-	    sctp_recv_udp_tunneled_packet))) {
+	    sctp_recv_udp_tunneled_packet, NULL))) {
 		sctp_over_udp_stop();
 		return (ret);
 	}

Modified: projects/vxlan/sys/netinet/udp_usrreq.c
==============================================================================
--- projects/vxlan/sys/netinet/udp_usrreq.c	Tue Jun  3 02:34:21 2014	(r266996)
+++ projects/vxlan/sys/netinet/udp_usrreq.c	Tue Jun  3 04:29:10 2014	(r266997)
@@ -303,7 +303,8 @@ udp_append(struct inpcb *inp, struct ip 
 	 */
 	up = intoudpcb(inp);
 	if (up->u_tun_func != NULL) {
-		(*up->u_tun_func)(n, off, inp, (struct sockaddr *) udp_in);
+		(*up->u_tun_func)(n, off, inp, (struct sockaddr *) udp_in,
+		    up->u_tun_func_ctx);
 		return;
 	}
 
@@ -1608,7 +1609,7 @@ udp_attach(struct socket *so, int proto,
 #endif /* INET */
 
 int
-udp_set_kernel_tunneling(struct socket *so, udp_tun_func_t f)
+udp_set_kernel_tunneling(struct socket *so, udp_tun_func_t f, void *ctx)
 {
 	struct inpcb *inp;
 	struct udpcb *up;
@@ -1624,6 +1625,7 @@ udp_set_kernel_tunneling(struct socket *
 		return (EBUSY);
 	}
 	up->u_tun_func = f;
+	up->u_tun_func_ctx = ctx;
 	INP_WUNLOCK(inp);
 	return (0);
 }

Modified: projects/vxlan/sys/netinet/udp_var.h
==============================================================================
--- projects/vxlan/sys/netinet/udp_var.h	Tue Jun  3 02:34:21 2014	(r266996)
+++ projects/vxlan/sys/netinet/udp_var.h	Tue Jun  3 04:29:10 2014	(r266997)
@@ -56,13 +56,14 @@ struct inpcb;
 struct mbuf;
 
 typedef void(*udp_tun_func_t)(struct mbuf *, int off, struct inpcb *,
-			      const struct sockaddr *);
+			      const struct sockaddr *, void *);
 
 /*
  * UDP control block; one per udp.
  */
 struct udpcb {
 	udp_tun_func_t	u_tun_func;	/* UDP kernel tunneling callback. */
+	void 		*u_tun_func_ctx;/* Tunneling callback context. */
 	u_int		u_flags;	/* Generic UDP flags. */
 	uint16_t	u_rxcslen;	/* Coverage for incoming datagrams. */
 	uint16_t	u_txcslen;	/* Coverage for outgoing datagrams. */
@@ -176,7 +177,8 @@ void		udplite_input(struct mbuf *, int);
 struct inpcb	*udp_notify(struct inpcb *inp, int errno);
 int		udp_shutdown(struct socket *so);
 
-int		udp_set_kernel_tunneling(struct socket *so, udp_tun_func_t f);
+int		udp_set_kernel_tunneling(struct socket *so, udp_tun_func_t f,
+					 void *ctx);
 
 #endif /* _KERNEL */
 

Modified: projects/vxlan/sys/netinet6/udp6_usrreq.c
==============================================================================
--- projects/vxlan/sys/netinet6/udp6_usrreq.c	Tue Jun  3 02:34:21 2014	(r266996)
+++ projects/vxlan/sys/netinet6/udp6_usrreq.c	Tue Jun  3 04:29:10 2014	(r266997)
@@ -148,7 +148,8 @@ udp6_append(struct inpcb *inp, struct mb
 	 */
 	up = intoudpcb(inp);
 	if (up->u_tun_func != NULL) {
-		(*up->u_tun_func)(n, off, inp, (struct sockaddr *)fromsa);
+		(*up->u_tun_func)(n, off, inp, (struct sockaddr *) fromsa,
+		    up->u_tun_func_ctx);
 		return;
 	}
 #ifdef IPSEC