MFC r273331, r273371, r275851:

 - Add vxlan interface

 - Use the size of the Ethernet address, not the entire header, when
   copying into forwarding entry.

 - Prefix all the vxlan ifconfig commands so they are unique

1 files changed, 148 insertions, 0 deletions

diff --git a/sys/net/if_vxlan.h b/sys/net/if_vxlan.h
new file mode 100644
index 0000000..557b4e7
--- /dev/null
+++ b/sys/net/if_vxlan.h
@@ -0,0 +1,148 @@
+/*-
+ * Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice unmodified, this list of conditions, and the following
+ *    disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NET_IF_VXLAN_H_
+#define _NET_IF_VXLAN_H_
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+
+struct vxlan_header {
+	uint32_t	vxlh_flags;
+	uint32_t	vxlh_vni;
+};
+
+#define VXLAN_HDR_FLAGS_VALID_VNI	0x08000000
+#define VXLAN_HDR_VNI_SHIFT		8
+
+#define VXLAN_VNI_MAX	(1 << 24)
+#define VXLAN_VNI_MASK	(VXLAN_VNI_MAX - 1)
+
+/*
+ * The port assigned by IANA is 4789, but some early implementations
+ * (like Linux) use 8472 instead. If not specified, we default to
+ * the IANA port.
+ */
+#define VXLAN_PORT		4789
+#define VXLAN_LEGACY_PORT	8472
+
+struct ifvxlanparam {
+	uint64_t		vxlp_with;
+
+#define VXLAN_PARAM_WITH_VNI		0x0001
+#define VXLAN_PARAM_WITH_LOCAL_ADDR4	0x0002
+#define VXLAN_PARAM_WITH_LOCAL_ADDR6	0x0004
+#define VXLAN_PARAM_WITH_REMOTE_ADDR4	0x0008
+#define VXLAN_PARAM_WITH_REMOTE_ADDR6	0x0010
+#define VXLAN_PARAM_WITH_LOCAL_PORT	0x0020
+#define VXLAN_PARAM_WITH_REMOTE_PORT	0x0040
+#define VXLAN_PARAM_WITH_PORT_RANGE	0x0080
+#define VXLAN_PARAM_WITH_FTABLE_TIMEOUT	0x0100
+#define VXLAN_PARAM_WITH_FTABLE_MAX	0x0200
+#define VXLAN_PARAM_WITH_MULTICAST_IF	0x0400
+#define VXLAN_PARAM_WITH_TTL		0x0800
+#define VXLAN_PARAM_WITH_LEARN		0x1000
+
+	uint32_t		vxlp_vni;
+	struct in_addr		vxlp_local_in4;
+	struct in6_addr		vxlp_local_in6;
+	struct in_addr		vxlp_remote_in4;
+	struct in6_addr		vxlp_remote_in6;
+	uint16_t		vxlp_local_port;
+	uint16_t		vxlp_remote_port;
+	uint16_t		vxlp_min_port;
+	uint16_t		vxlp_max_port;
+	char			vxlp_mc_ifname[IFNAMSIZ];
+	uint32_t		vxlp_ftable_timeout;
+	uint32_t		vxlp_ftable_max;
+	uint8_t			vxlp_ttl;
+	uint8_t			vxlp_learn;
+};
+
+union vxlan_sockaddr {
+	struct sockaddr		sa;
+	struct sockaddr_in	in4;
+	struct sockaddr_in6	in6;
+};
+
+#define VXLAN_SOCKADDR_IS_IPV4(_vxsin)	((_vxsin)->sa.sa_family == AF_INET)
+#define VXLAN_SOCKADDR_IS_IPV6(_vxsin)	((_vxsin)->sa.sa_family == AF_INET6)
+#define VXLAN_SOCKADDR_IS_IPV46(_vxsin) \
+    (VXLAN_SOCKADDR_IS_IPV4(_vxsin) || VXLAN_SOCKADDR_IS_IPV6(_vxsin))
+
+#define VXLAN_CMD_GET_CONFIG		0
+#define VXLAN_CMD_SET_VNI		1
+#define VXLAN_CMD_SET_LOCAL_ADDR	2
+#define VXLAN_CMD_SET_REMOTE_ADDR	4
+#define VXLAN_CMD_SET_LOCAL_PORT	5
+#define VXLAN_CMD_SET_REMOTE_PORT	6
+#define VXLAN_CMD_SET_PORT_RANGE	7
+#define VXLAN_CMD_SET_FTABLE_TIMEOUT	8
+#define VXLAN_CMD_SET_FTABLE_MAX	9
+#define VXLAN_CMD_SET_MULTICAST_IF	10
+#define VXLAN_CMD_SET_TTL		11
+#define VXLAN_CMD_SET_LEARN		12
+#define VXLAN_CMD_FTABLE_ENTRY_ADD	13
+#define VXLAN_CMD_FTABLE_ENTRY_REM	14
+#define VXLAN_CMD_FLUSH			15
+
+struct ifvxlancfg {
+	uint32_t		vxlc_vni;
+	union vxlan_sockaddr	vxlc_local_sa;
+	union vxlan_sockaddr	vxlc_remote_sa;
+	uint32_t		vxlc_mc_ifindex;
+	uint32_t		vxlc_ftable_cnt;
+	uint32_t		vxlc_ftable_max;
+	uint32_t		vxlc_ftable_timeout;
+	uint16_t		vxlc_port_min;
+	uint16_t		vxlc_port_max;
+	uint8_t			vxlc_learn;
+	uint8_t			vxlc_ttl;
+};
+
+struct ifvxlancmd {
+	uint32_t		vxlcmd_flags;
+#define VXLAN_CMD_FLAG_FLUSH_ALL	0x0001
+#define VXLAN_CMD_FLAG_LEARN		0x0002
+
+	uint32_t		vxlcmd_vni;
+	uint32_t		vxlcmd_ftable_timeout;
+	uint32_t		vxlcmd_ftable_max;
+	uint16_t		vxlcmd_port;
+	uint16_t		vxlcmd_port_min;
+	uint16_t		vxlcmd_port_max;
+	uint8_t			vxlcmd_mac[ETHER_ADDR_LEN];
+	uint8_t			vxlcmd_ttl;
+	union vxlan_sockaddr	vxlcmd_sa;
+	char			vxlcmd_ifname[IFNAMSIZ];
+};
+
+#endif /* _NET_IF_VXLAN_H_ */