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
33 static inline if_t
ip_ifp_find(struct vnet * vnet,uint32_t addr)34 ip_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
61 static inline if_t
ip6_ifp_find(struct vnet * vnet,struct in6_addr addr,uint16_t scope_id)62 ip6_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
93 static inline if_t
dev_get_by_index(struct vnet * vnet,int if_index)94 dev_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