1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * Copyright 2019 Nexenta by DDN, Inc. All rights reserved. 27 */ 28 29 /* 30 * Wrappers for inet address manipulation to do what SMB needs. 31 */ 32 33 #include <sys/types.h> 34 #include <sys/socket.h> 35 #include <netinet/in.h> 36 37 #if !defined(_KERNEL) 38 #include <errno.h> 39 #include <string.h> 40 #include <strings.h> 41 #include <arpa/inet.h> 42 #else /* !_KERNEL */ 43 #include <sys/errno.h> 44 #include <sys/sunddi.h> 45 /* Don't want the rest of what's in inet/ip.h */ 46 #define inet_ntop _inet_ntop // illumos.org/issues/5980 47 extern char *inet_ntop(int, const void *, char *, int); 48 extern int inet_pton(int, char *, void *); 49 #endif /* !_KERNEL */ 50 51 #include <smbsrv/smb_inet.h> 52 53 const struct in6_addr ipv6addr_any = IN6ADDR_ANY_INIT; 54 55 boolean_t 56 smb_inet_equal(smb_inaddr_t *ip1, smb_inaddr_t *ip2) 57 { 58 if ((ip1->a_family == AF_INET) && 59 (ip2->a_family == AF_INET) && 60 (ip1->a_ipv4 == ip2->a_ipv4)) 61 return (B_TRUE); 62 63 if ((ip1->a_family == AF_INET6) && 64 (ip2->a_family == AF_INET6) && 65 (!memcmp(&ip1->a_ipv6, &ip2->a_ipv6, sizeof (in6_addr_t)))) 66 return (B_TRUE); 67 else 68 return (B_FALSE); 69 } 70 71 boolean_t 72 smb_inet_same_subnet(smb_inaddr_t *ip1, smb_inaddr_t *ip2, uint32_t v4mask) 73 { 74 if ((ip1->a_family == AF_INET) && 75 (ip2->a_family == AF_INET) && 76 ((ip1->a_ipv4 & v4mask) == (ip2->a_ipv4 & v4mask))) 77 return (B_TRUE); 78 79 if ((ip1->a_family == AF_INET6) && 80 (ip2->a_family == AF_INET6) && 81 (!memcmp(&ip1->a_ipv6, &ip2->a_ipv6, sizeof (in6_addr_t)))) 82 return (B_TRUE); 83 else 84 return (B_FALSE); 85 } 86 87 boolean_t 88 smb_inet_iszero(smb_inaddr_t *ipaddr) 89 { 90 const void *ipsz = (const void *)&ipv6addr_any; 91 92 if ((ipaddr->a_family == AF_INET) && 93 (ipaddr->a_ipv4 == 0)) 94 return (B_TRUE); 95 96 if ((ipaddr->a_family == AF_INET6) && 97 !memcmp(&ipaddr->a_ipv6, ipsz, sizeof (in6_addr_t))) 98 return (B_TRUE); 99 else 100 return (B_FALSE); 101 } 102 103 const char * 104 smb_inet_ntop(smb_inaddr_t *addr, char *buf, int size) 105 { 106 /* Lint avoidance */ 107 #ifdef _KERNEL 108 int sz = size; 109 #else 110 size_t sz = (size_t)size; 111 #endif 112 113 return ((char *)inet_ntop(addr->a_family, addr, buf, sz)); 114 } 115