1613a2f6bSGordon Ross /*
2613a2f6bSGordon Ross * CDDL HEADER START
3613a2f6bSGordon Ross *
4613a2f6bSGordon Ross * The contents of this file are subject to the terms of the
5613a2f6bSGordon Ross * Common Development and Distribution License (the "License").
6613a2f6bSGordon Ross * You may not use this file except in compliance with the License.
7613a2f6bSGordon Ross *
8613a2f6bSGordon Ross * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9613a2f6bSGordon Ross * or http://www.opensolaris.org/os/licensing.
10613a2f6bSGordon Ross * See the License for the specific language governing permissions
11613a2f6bSGordon Ross * and limitations under the License.
12613a2f6bSGordon Ross *
13613a2f6bSGordon Ross * When distributing Covered Code, include this CDDL HEADER in each
14613a2f6bSGordon Ross * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15613a2f6bSGordon Ross * If applicable, add the following below this CDDL HEADER, with the
16613a2f6bSGordon Ross * fields enclosed by brackets "[]" replaced with your own identifying
17613a2f6bSGordon Ross * information: Portions Copyright [yyyy] [name of copyright owner]
18613a2f6bSGordon Ross *
19613a2f6bSGordon Ross * CDDL HEADER END
20613a2f6bSGordon Ross */
21613a2f6bSGordon Ross
22613a2f6bSGordon Ross /*
23ae3d7f90SGordon Ross * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
24*40c0e231SGordon Ross * Copyright 2018 Nexenta Systems, Inc. All rights reserved.
25613a2f6bSGordon Ross */
26613a2f6bSGordon Ross
27613a2f6bSGordon Ross /*
28613a2f6bSGordon Ross * Functions to get list of addresses (TCP and/or NetBIOS)
29613a2f6bSGordon Ross */
30613a2f6bSGordon Ross
31613a2f6bSGordon Ross #include <errno.h>
32613a2f6bSGordon Ross #include <stdio.h>
33613a2f6bSGordon Ross #include <stdlib.h>
34613a2f6bSGordon Ross #include <string.h>
35613a2f6bSGordon Ross #include <strings.h>
36613a2f6bSGordon Ross #include <unistd.h>
37613a2f6bSGordon Ross #include <netdb.h>
38613a2f6bSGordon Ross #include <libintl.h>
39613a2f6bSGordon Ross #include <xti.h>
40613a2f6bSGordon Ross #include <assert.h>
41613a2f6bSGordon Ross
42613a2f6bSGordon Ross #include <sys/types.h>
43613a2f6bSGordon Ross #include <sys/time.h>
44613a2f6bSGordon Ross #include <sys/byteorder.h>
45613a2f6bSGordon Ross #include <sys/socket.h>
46613a2f6bSGordon Ross #include <sys/fcntl.h>
47613a2f6bSGordon Ross
48613a2f6bSGordon Ross #include <netinet/in.h>
49613a2f6bSGordon Ross #include <netinet/tcp.h>
50613a2f6bSGordon Ross #include <arpa/inet.h>
51613a2f6bSGordon Ross
52613a2f6bSGordon Ross #include <netsmb/smb.h>
53613a2f6bSGordon Ross #include <netsmb/smb_lib.h>
54613a2f6bSGordon Ross #include <netsmb/netbios.h>
55613a2f6bSGordon Ross #include <netsmb/nb_lib.h>
56613a2f6bSGordon Ross #include <netsmb/smb_dev.h>
57613a2f6bSGordon Ross
58613a2f6bSGordon Ross #include "charsets.h"
59613a2f6bSGordon Ross #include "private.h"
60613a2f6bSGordon Ross
61*40c0e231SGordon Ross static char smb_port[16] = "445";
62*40c0e231SGordon Ross
63613a2f6bSGordon Ross void
dump_addrinfo(struct addrinfo * ai)64613a2f6bSGordon Ross dump_addrinfo(struct addrinfo *ai)
65613a2f6bSGordon Ross {
66613a2f6bSGordon Ross int i;
67613a2f6bSGordon Ross
68613a2f6bSGordon Ross if (ai == NULL) {
69613a2f6bSGordon Ross printf("ai==NULL\n");
70613a2f6bSGordon Ross return;
71613a2f6bSGordon Ross }
72613a2f6bSGordon Ross
73613a2f6bSGordon Ross for (i = 0; ai; i++, ai = ai->ai_next) {
74613a2f6bSGordon Ross printf("ai[%d]: af=%d, len=%d", i,
75613a2f6bSGordon Ross ai->ai_family, ai->ai_addrlen);
76613a2f6bSGordon Ross dump_sockaddr(ai->ai_addr);
77613a2f6bSGordon Ross if (ai->ai_canonname) {
78613a2f6bSGordon Ross printf("ai[%d]: cname=\"%s\"\n",
79613a2f6bSGordon Ross i, ai->ai_canonname);
80613a2f6bSGordon Ross }
81613a2f6bSGordon Ross }
82613a2f6bSGordon Ross }
83613a2f6bSGordon Ross
84613a2f6bSGordon Ross void
dump_sockaddr(struct sockaddr * sa)85613a2f6bSGordon Ross dump_sockaddr(struct sockaddr *sa)
86613a2f6bSGordon Ross {
87613a2f6bSGordon Ross char paddrbuf[INET6_ADDRSTRLEN];
88613a2f6bSGordon Ross struct sockaddr_in *sin;
89613a2f6bSGordon Ross struct sockaddr_in6 *sin6;
90613a2f6bSGordon Ross int af = sa->sa_family;
91613a2f6bSGordon Ross const char *ip;
92613a2f6bSGordon Ross
93613a2f6bSGordon Ross printf(" saf=%d,", af);
94613a2f6bSGordon Ross switch (af) {
95613a2f6bSGordon Ross case AF_NETBIOS: /* see nbns_rq.c */
96613a2f6bSGordon Ross case AF_INET:
97613a2f6bSGordon Ross sin = (void *)sa;
98613a2f6bSGordon Ross ip = inet_ntop(AF_INET, &sin->sin_addr,
99613a2f6bSGordon Ross paddrbuf, sizeof (paddrbuf));
100613a2f6bSGordon Ross break;
101613a2f6bSGordon Ross case AF_INET6:
102613a2f6bSGordon Ross sin6 = (void *)sa;
103613a2f6bSGordon Ross ip = inet_ntop(AF_INET6, &sin6->sin6_addr,
104613a2f6bSGordon Ross paddrbuf, sizeof (paddrbuf));
105613a2f6bSGordon Ross break;
106613a2f6bSGordon Ross default:
107613a2f6bSGordon Ross ip = "?";
108613a2f6bSGordon Ross break;
109613a2f6bSGordon Ross }
110613a2f6bSGordon Ross printf(" IP=%s\n", ip);
111613a2f6bSGordon Ross }
112613a2f6bSGordon Ross
113613a2f6bSGordon Ross
114613a2f6bSGordon Ross /*
115613a2f6bSGordon Ross * SMB client name resolution - normal, and/or NetBIOS.
116613a2f6bSGordon Ross * Returns an EAI_xxx error number like getaddrinfo(3)
117613a2f6bSGordon Ross */
118613a2f6bSGordon Ross int
smb_ctx_getaddr(struct smb_ctx * ctx)119613a2f6bSGordon Ross smb_ctx_getaddr(struct smb_ctx *ctx)
120613a2f6bSGordon Ross {
121613a2f6bSGordon Ross struct nb_ctx *nbc = ctx->ct_nb;
122613a2f6bSGordon Ross struct addrinfo hints, *res;
123613a2f6bSGordon Ross char *srvaddr_str;
124*40c0e231SGordon Ross int gaierr;
125613a2f6bSGordon Ross
126613a2f6bSGordon Ross if (ctx->ct_fullserver == NULL || ctx->ct_fullserver[0] == '\0')
127613a2f6bSGordon Ross return (EAI_NONAME);
128613a2f6bSGordon Ross
129613a2f6bSGordon Ross if (ctx->ct_addrinfo != NULL) {
130613a2f6bSGordon Ross freeaddrinfo(ctx->ct_addrinfo);
131613a2f6bSGordon Ross ctx->ct_addrinfo = NULL;
132613a2f6bSGordon Ross }
133613a2f6bSGordon Ross
134613a2f6bSGordon Ross /*
135613a2f6bSGordon Ross * If the user specified an address, use it,
136613a2f6bSGordon Ross * and don't do NetBIOS lookup.
137613a2f6bSGordon Ross */
138613a2f6bSGordon Ross if (ctx->ct_srvaddr_s) {
139613a2f6bSGordon Ross srvaddr_str = ctx->ct_srvaddr_s;
140613a2f6bSGordon Ross nbc->nb_flags &= ~NBCF_NS_ENABLE;
141613a2f6bSGordon Ross } else
142613a2f6bSGordon Ross srvaddr_str = ctx->ct_fullserver;
143613a2f6bSGordon Ross
144613a2f6bSGordon Ross /*
145613a2f6bSGordon Ross * Default the server name we'll use in the
146613a2f6bSGordon Ross * protocol (i.e. NTLM, tree connect).
147613a2f6bSGordon Ross */
148613a2f6bSGordon Ross strlcpy(ctx->ct_srvname, ctx->ct_fullserver,
149613a2f6bSGordon Ross sizeof (ctx->ct_srvname));
150613a2f6bSGordon Ross
151613a2f6bSGordon Ross /*
152613a2f6bSGordon Ross * Try to lookup the host address using the
153613a2f6bSGordon Ross * normal name-to-IP address mechanisms.
154613a2f6bSGordon Ross * If that fails, we MAY try NetBIOS.
155613a2f6bSGordon Ross */
156613a2f6bSGordon Ross memset(&hints, 0, sizeof (hints));
157613a2f6bSGordon Ross hints.ai_flags = AI_CANONNAME;
158613a2f6bSGordon Ross hints.ai_family = PF_UNSPEC;
159613a2f6bSGordon Ross hints.ai_socktype = SOCK_STREAM;
160*40c0e231SGordon Ross gaierr = getaddrinfo(srvaddr_str, smb_port, &hints, &res);
161613a2f6bSGordon Ross if (gaierr == 0) {
162613a2f6bSGordon Ross ctx->ct_addrinfo = res;
163613a2f6bSGordon Ross return (0);
164613a2f6bSGordon Ross }
165613a2f6bSGordon Ross
166613a2f6bSGordon Ross /*
167*40c0e231SGordon Ross * If we really want to support NetBIOS, we should add
168*40c0e231SGordon Ross * an AF_NETBIOS entry to the address list here.
169*40c0e231SGordon Ross * For now, let's just skip NetBIOS.
170*40c0e231SGordon Ross * (Can we just kill NetBIOS? Please? :)
171*40c0e231SGordon Ross */
172*40c0e231SGordon Ross #if 0 /* XXX Just kill NetBIOS? */
173*40c0e231SGordon Ross /*
174613a2f6bSGordon Ross * If regular IP name lookup failed, try NetBIOS,
175613a2f6bSGordon Ross * but only if given a valid NetBIOS name and if
176613a2f6bSGordon Ross * NetBIOS name lookup is enabled.
177613a2f6bSGordon Ross */
178613a2f6bSGordon Ross if (nbc->nb_flags & NBCF_NS_ENABLE) {
179*40c0e231SGordon Ross int gaierr2 = nbns_getaddrinfo(ctx->ct_fullserver, nbc, &res);
180613a2f6bSGordon Ross if (gaierr2 == 0) {
181613a2f6bSGordon Ross if (res->ai_canonname)
182613a2f6bSGordon Ross strlcpy(ctx->ct_srvname,
183613a2f6bSGordon Ross res->ai_canonname,
184613a2f6bSGordon Ross sizeof (ctx->ct_srvname));
185613a2f6bSGordon Ross ctx->ct_addrinfo = res;
186613a2f6bSGordon Ross return (0);
187613a2f6bSGordon Ross }
188613a2f6bSGordon Ross }
189*40c0e231SGordon Ross #endif
190613a2f6bSGordon Ross
191613a2f6bSGordon Ross /*
192613a2f6bSGordon Ross * Return the original error from getaddrinfo
193613a2f6bSGordon Ross */
194613a2f6bSGordon Ross if (smb_verbose) {
195613a2f6bSGordon Ross smb_error(dgettext(TEXT_DOMAIN,
196613a2f6bSGordon Ross "getaddrinfo: %s: %s"), 0,
197613a2f6bSGordon Ross ctx->ct_fullserver,
198613a2f6bSGordon Ross gai_strerror(gaierr));
199613a2f6bSGordon Ross }
200613a2f6bSGordon Ross return (gaierr);
201613a2f6bSGordon Ross }
202