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 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 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 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