1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice unmodified, this list of conditions, and the following
13 *    disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29#ifndef _RDMA_IB_ADDR_FREEBSD_H
30#define	_RDMA_IB_ADDR_FREEBSD_H
31
32#ifdef INET
33static inline if_t
34ip_ifp_find(struct vnet *vnet, uint32_t addr)
35{
36	struct sockaddr_in sin;
37	struct epoch_tracker et;
38	struct ifaddr *ifa;
39	if_t ifp;
40
41	memset(&sin, 0, sizeof(sin));
42	sin.sin_addr.s_addr = addr;
43	sin.sin_len = sizeof(sin);
44	sin.sin_family = AF_INET;
45	NET_EPOCH_ENTER(et);
46	CURVNET_SET_QUIET(vnet);
47	ifa = ifa_ifwithaddr((struct sockaddr *)&sin);
48	CURVNET_RESTORE();
49	if (ifa) {
50		ifp = ifa->ifa_ifp;
51		if_ref(ifp);
52	} else {
53		ifp = NULL;
54	}
55	NET_EPOCH_EXIT(et);
56	return (ifp);
57}
58#endif
59
60#ifdef INET6
61static inline if_t
62ip6_ifp_find(struct vnet *vnet, struct in6_addr addr, uint16_t scope_id)
63{
64	struct sockaddr_in6 sin6;
65	struct epoch_tracker et;
66	struct ifaddr *ifa;
67	if_t ifp;
68
69	memset(&sin6, 0, sizeof(sin6));
70	sin6.sin6_addr = addr;
71	sin6.sin6_len = sizeof(sin6);
72	sin6.sin6_family = AF_INET6;
73	if (IN6_IS_SCOPE_LINKLOCAL(&addr) ||
74	    IN6_IS_ADDR_MC_INTFACELOCAL(&addr)) {
75		/* embed the IPv6 scope ID */
76		sin6.sin6_addr.s6_addr16[1] = htons(scope_id);
77	}
78	NET_EPOCH_ENTER(et);
79	CURVNET_SET_QUIET(vnet);
80	ifa = ifa_ifwithaddr((struct sockaddr *)&sin6);
81	CURVNET_RESTORE();
82	if (ifa != NULL) {
83		ifp = ifa->ifa_ifp;
84		if_ref(ifp);
85	} else {
86		ifp = NULL;
87	}
88	NET_EPOCH_EXIT(et);
89	return (ifp);
90}
91#endif
92
93static inline if_t
94dev_get_by_index(struct vnet *vnet, int if_index)
95{
96	struct epoch_tracker et;
97	if_t retval;
98
99	NET_EPOCH_ENTER(et);
100	CURVNET_SET(vnet);
101	retval = ifnet_byindex_ref(if_index);
102	CURVNET_RESTORE();
103	NET_EPOCH_EXIT(et);
104
105	return (retval);
106}
107
108#endif	/* _RDMA_IB_ADDR_FREEBSD_H */
109