1 /*
2 * Copyright (c) 2000-2001, Boris Popov
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $Id: smbfs_subr.c,v 1.18 2005/02/02 00:22:23 lindak Exp $
33 */
34
35 /*
36 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
37 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
38 * Use is subject to license terms.
39 */
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/time.h>
44 #include <sys/vnode.h>
45 #include <sys/sunddi.h>
46
47 #include <netsmb/smb_osdep.h>
48
49 #include <netsmb/smb.h>
50 #include <netsmb/smb_conn.h>
51 #include <netsmb/smb_subr.h>
52 #include <netsmb/smb_rq.h>
53
54 #include <smbfs/smbfs.h>
55 #include <smbfs/smbfs_node.h>
56 #include <smbfs/smbfs_subr.h>
57
58 /*
59 * In the Darwin code, this function used to compute the full path
60 * by following the chain of n_parent pointers back to the root.
61 * In the Solaris port we found the n_parent pointers inconvenient
62 * because they hold parent nodes busy. We now keep the full path
63 * in every node, so this function need only marshall the directory
64 * path, and (if provided) the separator and last component name.
65 *
66 * Note that this logic must match that in smbfs_getino
67 */
68 int
smbfs_fullpath(struct mbchain * mbp,struct smb_vc * vcp,struct smbnode * dnp,const char * name,int nmlen,u_int8_t sep)69 smbfs_fullpath(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *dnp,
70 const char *name, int nmlen, u_int8_t sep)
71 {
72 int caseopt = SMB_CS_NONE;
73 int unicode = (SMB_UNICODE_STRINGS(vcp)) ? 1 : 0;
74 int error;
75
76 if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0)
77 caseopt |= SMB_CS_UPPER;
78
79 if (unicode) {
80 error = mb_put_padbyte(mbp);
81 if (error)
82 return (error);
83 }
84
85 error = smb_put_dmem(mbp, vcp,
86 dnp->n_rpath, dnp->n_rplen,
87 caseopt, NULL);
88 if (name) {
89 /*
90 * Special case at share root:
91 * Don't put another slash.
92 */
93 if (dnp->n_rplen <= 1 && sep == '\\')
94 sep = 0;
95 /*
96 * More special cases, now for XATTR:
97 * Our "faked up" XATTR directories use a
98 * full path name ending with ":" so as to
99 * avoid conflicts with any real paths.
100 * (It is not a valid CIFS path name.)
101 * Therefore, when we're composing a full
102 * path name from an XATTR directory, we
103 * need to _ommit_ the ":" separator and
104 * instead copy the one from the "fake"
105 * parent node's path name.
106 */
107 if (dnp->n_flag & N_XATTR)
108 sep = 0;
109
110 if (sep) {
111 /* Put the separator */
112 if (unicode)
113 error = mb_put_uint16le(mbp, sep);
114 else
115 error = mb_put_uint8(mbp, sep);
116 if (error)
117 return (error);
118 }
119 /* Put the name */
120 error = smb_put_dmem(mbp, vcp,
121 name, nmlen, caseopt, NULL);
122 if (error)
123 return (error);
124 }
125 /* Put NULL termination. */
126 if (unicode)
127 error = mb_put_uint16le(mbp, 0);
128 else
129 error = mb_put_uint8(mbp, 0);
130
131 return (error);
132 }
133
134 /*
135 * Convert a Unicode directory entry to UTF-8
136 */
137 void
smbfs_fname_tolocal(struct smbfs_fctx * ctx)138 smbfs_fname_tolocal(struct smbfs_fctx *ctx)
139 {
140 uchar_t tmpbuf[SMB_MAXFNAMELEN+1];
141 struct smb_vc *vcp = SSTOVC(ctx->f_ssp);
142 uchar_t *dst;
143 const ushort_t *src;
144 size_t inlen, outlen;
145 int flags;
146
147 if (ctx->f_nmlen == 0)
148 return;
149
150 if (!SMB_UNICODE_STRINGS(vcp))
151 return;
152
153 if (ctx->f_namesz < sizeof (tmpbuf)) {
154 ASSERT(0);
155 goto errout;
156 }
157
158 /*
159 * In-place conversions are not supported,
160 * so convert into tmpbuf and copy.
161 */
162 dst = tmpbuf;
163 outlen = SMB_MAXFNAMELEN;
164 /*LINTED*/
165 src = (const ushort_t *)ctx->f_name;
166 inlen = ctx->f_nmlen / 2; /* number of UCS-2 characters */
167 flags = UCONV_IN_LITTLE_ENDIAN;
168
169 if (uconv_u16tou8(src, &inlen, dst, &outlen, flags) != 0)
170 goto errout;
171
172 ASSERT(outlen < sizeof (tmpbuf));
173 tmpbuf[outlen] = '\0';
174 bcopy(tmpbuf, ctx->f_name, outlen + 1);
175 ctx->f_nmlen = (int)outlen;
176 return;
177
178 errout:
179 /*
180 * Conversion failed, but our caller does not
181 * deal with errors here, so just put a "?".
182 * Don't expect to ever see this.
183 */
184 (void) strlcpy(ctx->f_name, "?", ctx->f_namesz);
185 }
186