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 * $FreeBSD$ 30 */ 31 #ifndef _RDMA_IB_ADDR_FREEBSD_H 32 #define _RDMA_IB_ADDR_FREEBSD_H 33 34 #ifdef INET 35 static inline if_t 36 ip_ifp_find(struct vnet *vnet, uint32_t addr) 37 { 38 struct sockaddr_in sin; 39 struct epoch_tracker et; 40 struct ifaddr *ifa; 41 if_t ifp; 42 43 memset(&sin, 0, sizeof(sin)); 44 sin.sin_addr.s_addr = addr; 45 sin.sin_len = sizeof(sin); 46 sin.sin_family = AF_INET; 47 NET_EPOCH_ENTER(et); 48 CURVNET_SET_QUIET(vnet); 49 ifa = ifa_ifwithaddr((struct sockaddr *)&sin); 50 CURVNET_RESTORE(); 51 if (ifa) { 52 ifp = ifa->ifa_ifp; 53 if_ref(ifp); 54 } else { 55 ifp = NULL; 56 } 57 NET_EPOCH_EXIT(et); 58 return (ifp); 59 } 60 #endif 61 62 #ifdef INET6 63 static inline if_t 64 ip6_ifp_find(struct vnet *vnet, struct in6_addr addr, uint16_t scope_id) 65 { 66 struct sockaddr_in6 sin6; 67 struct epoch_tracker et; 68 struct ifaddr *ifa; 69 if_t ifp; 70 71 memset(&sin6, 0, sizeof(sin6)); 72 sin6.sin6_addr = addr; 73 sin6.sin6_len = sizeof(sin6); 74 sin6.sin6_family = AF_INET6; 75 if (IN6_IS_SCOPE_LINKLOCAL(&addr) || 76 IN6_IS_ADDR_MC_INTFACELOCAL(&addr)) { 77 /* embed the IPv6 scope ID */ 78 sin6.sin6_addr.s6_addr16[1] = htons(scope_id); 79 } 80 NET_EPOCH_ENTER(et); 81 CURVNET_SET_QUIET(vnet); 82 ifa = ifa_ifwithaddr((struct sockaddr *)&sin6); 83 CURVNET_RESTORE(); 84 if (ifa != NULL) { 85 ifp = ifa->ifa_ifp; 86 if_ref(ifp); 87 } else { 88 ifp = NULL; 89 } 90 NET_EPOCH_EXIT(et); 91 return (ifp); 92 } 93 #endif 94 95 static inline if_t 96 dev_get_by_index(struct vnet *vnet, int if_index) 97 { 98 struct epoch_tracker et; 99 if_t retval; 100 101 NET_EPOCH_ENTER(et); 102 CURVNET_SET(vnet); 103 retval = ifnet_byindex_ref(if_index); 104 CURVNET_RESTORE(); 105 NET_EPOCH_EXIT(et); 106 107 return (retval); 108 } 109 110 #endif /* _RDMA_IB_ADDR_FREEBSD_H */ 111