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 2017 Nexenta Systems, Inc. All rights reserved.
27 */
28
29 /*
30 * Create a new VC given a list of addresses.
31 */
32
33 #include <errno.h>
34 #include <stdio.h>
35 #include <string.h>
36 #include <strings.h>
37 #include <stdlib.h>
38 #include <unistd.h>
39 #include <netdb.h>
40 #include <libintl.h>
41 #include <xti.h>
42 #include <assert.h>
43
44 #include <sys/types.h>
45 #include <sys/time.h>
46 #include <sys/byteorder.h>
47 #include <sys/socket.h>
48 #include <sys/fcntl.h>
49
50 #include <netinet/in.h>
51 #include <netinet/tcp.h>
52 #include <arpa/inet.h>
53
54 #include <netsmb/smb.h>
55 #include <netsmb/smb_lib.h>
56 #include <netsmb/netbios.h>
57 #include <netsmb/nb_lib.h>
58 #include <netsmb/smb_dev.h>
59
60 #include "smb/charsets.h"
61 #include "smb/private.h"
62
63 /*
64 * Ask the IOD to create a VC with this IP address.
65 */
66 static int
fknewvc(struct smb_ctx * ctx,struct addrinfo * ai)67 fknewvc(struct smb_ctx *ctx, struct addrinfo *ai)
68 {
69 char host[256];
70 char svc[32];
71 smbioc_ossn_t *ssn = &ctx->ct_ssn;
72 int err;
73
74 if (smb_debug) {
75 err = getnameinfo(ai->ai_addr, ai->ai_addrlen,
76 host, sizeof (host), svc, sizeof (svc),
77 AI_NUMERICHOST);
78 if (err != 0) {
79 strlcpy(host, "(?)", sizeof (host));
80 strlcpy(svc, "?", sizeof (host));
81 }
82 printf("fknewvc: Try AF=%d %s:%s\n",
83 ai->ai_family, host, svc);
84 }
85
86 /*
87 * Copy the passed address into ssn_srvaddr,
88 * but first sanity-check lengths. Also,
89 * zero it first to avoid trailing junk.
90 */
91 if (ai->ai_addrlen > sizeof (ssn->ssn_srvaddr))
92 return (EINVAL);
93 bzero(&ssn->ssn_srvaddr, sizeof (ssn->ssn_srvaddr));
94 bcopy(ai->ai_addr, &ssn->ssn_srvaddr, ai->ai_addrlen);
95
96 /* Ask the IOD to connect using the info in ctx. */
97 err = smb_iod_cl_newvc(ctx);
98 if (smb_debug) {
99 printf("fknewvc: iod_cl_newvc err=%d\n", err);
100 }
101
102 return (err);
103 }
104
105 /*
106 * Setup a new VC via the IOD.
107 * Similar to findvc.c
108 */
109 int
smb_ctx_newvc(struct smb_ctx * ctx)110 smb_ctx_newvc(struct smb_ctx *ctx)
111 {
112 struct addrinfo *ai;
113 int err;
114
115 /* Should already have the address list. */
116 if ((ctx->ct_flags & SMBCF_RESOLVED) == 0)
117 return (EINVAL);
118
119 err = EPROTONOSUPPORT; /* in case no AF match */
120 for (ai = ctx->ct_addrinfo; ai; ai = ai->ai_next) {
121
122 switch (ai->ai_family) {
123
124 case AF_INET:
125 case AF_INET6:
126 case AF_NETBIOS:
127 err = fknewvc(ctx, ai);
128 if (err == 0)
129 return (0);
130 break;
131
132 default:
133 break;
134 }
135 }
136
137 /*
138 * In the error case, the caller may try again
139 * with new auth. info, so keep the door open.
140 * Error return will close in smb_ctx_done.
141 */
142 return (err);
143 }
144