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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/9.0/sys/fs/smbfs/smbfs_subr.c 206361 2010-04-07 16:50:38Z joel $
27 */
28 #include <sys/param.h>
29 #include <sys/systm.h>
30 #include <sys/kernel.h>
31 #include <sys/clock.h>
32 #include <sys/malloc.h>
33 #include <sys/time.h>
34 #include <sys/vnode.h>
35 #include <sys/sysctl.h>
36 #include <sys/iconv.h>
37
38 #include <netsmb/smb.h>
39 #include <netsmb/smb_conn.h>
40 #include <netsmb/smb_subr.h>
41 #include <netsmb/smb_rq.h>
42 #include <netsmb/smb_dev.h>
43
44 #include <fs/smbfs/smbfs.h>
45 #include <fs/smbfs/smbfs_node.h>
46 #include <fs/smbfs/smbfs_subr.h>
47
48 MALLOC_DEFINE(M_SMBFSDATA, "smbfs_data", "SMBFS private data");
49
50 void
51 smb_time_local2server(struct timespec *tsp, int tzoff, u_long *seconds)
52 {
53 *seconds = tsp->tv_sec - tzoff * 60 /*- tz_minuteswest * 60 -
54 (wall_cmos_clock ? adjkerntz : 0)*/;
55 }
56
57 void
58 smb_time_server2local(u_long seconds, int tzoff, struct timespec *tsp)
59 {
60 tsp->tv_sec = seconds + tzoff * 60;
61 /*+ tz_minuteswest * 60 + (wall_cmos_clock ? adjkerntz : 0)*/;
62 }
63
64 /*
65 * Number of seconds between 1970 and 1601 year
66 */
67 static int64_t DIFF1970TO1601 = 11644473600ULL;
68
69 /*
70 * Time from server comes as UTC, so no need to use tz
71 */
72 void
73 smb_time_NT2local(int64_t nsec, int tzoff, struct timespec *tsp)
74 {
75 smb_time_server2local(nsec / 10000000 - DIFF1970TO1601, 0, tsp);
76 }
77
78 void
79 smb_time_local2NT(struct timespec *tsp, int tzoff, int64_t *nsec)
80 {
81 u_long seconds;
82
83 smb_time_local2server(tsp, 0, &seconds);
84 *nsec = (((int64_t)(seconds) & ~1) + DIFF1970TO1601) * (int64_t)10000000;
85 }
86
87 void
88 smb_time_unix2dos(struct timespec *tsp, int tzoff, u_int16_t *ddp,
89 u_int16_t *dtp, u_int8_t *dhp)
90 {
91 struct timespec tt;
92 u_long t;
93
94 tt = *tsp;
95 smb_time_local2server(tsp, tzoff, &t);
96 tt.tv_sec = t;
97 timespec2fattime(&tt, 1, ddp, dtp, dhp);
98 }
99
100 void
101 smb_dos2unixtime(u_int dd, u_int dt, u_int dh, int tzoff,
102 struct timespec *tsp)
103 {
104
105 fattime2timespec(dd, dt, dh, 1, tsp);
106 smb_time_server2local(tsp->tv_sec, tzoff, tsp);
107 }
108
109 static int
110 smb_fphelp(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *np,
111 int caseopt)
112 {
113 struct smbmount *smp= np->n_mount;
114 struct smbnode **npp = smp->sm_npstack;
115 int i, error = 0;
116
117 /* simple_lock(&smp->sm_npslock);*/
118 i = 0;
119 while (np->n_parent) {
120 if (i++ == SMBFS_MAXPATHCOMP) {
121 /* simple_unlock(&smp->sm_npslock);*/
122 return ENAMETOOLONG;
123 }
124 *npp++ = np;
125 if ((np->n_flag & NREFPARENT) == 0)
126 break;
127 np = VTOSMB(np->n_parent);
128 }
129 /* if (i == 0)
130 return smb_put_dmem(mbp, vcp, "\\", 2, caseopt);*/
131 while (i--) {
132 np = *--npp;
133 error = mb_put_uint8(mbp, '\\');
134 if (error)
135 break;
136 error = smb_put_dmem(mbp, vcp, np->n_name, np->n_nmlen, caseopt);
137 if (error)
138 break;
139 }
140 /* simple_unlock(&smp->sm_npslock);*/
141 return error;
142 }
143
144 int
145 smbfs_fullpath(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *dnp,
146 const char *name, int nmlen)
147 {
148 int caseopt = SMB_CS_NONE;
149 int error;
150
151 if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0)
152 caseopt |= SMB_CS_UPPER;
153 if (dnp != NULL) {
154 error = smb_fphelp(mbp, vcp, dnp, caseopt);
155 if (error)
156 return error;
157 }
158 if (name) {
159 error = mb_put_uint8(mbp, '\\');
160 if (error)
161 return error;
162 error = smb_put_dmem(mbp, vcp, name, nmlen, caseopt);
163 if (error)
164 return error;
165 }
166 error = mb_put_uint8(mbp, 0);
167 return error;
168 }
169
170 int
171 smbfs_fname_tolocal(struct smb_vc *vcp, char *name, int *nmlen, int caseopt)
172 {
173 int copt = (caseopt == SMB_CS_LOWER ? KICONV_FROM_LOWER :
174 (caseopt == SMB_CS_UPPER ? KICONV_FROM_UPPER : 0));
175 int error = 0;
176 size_t ilen = *nmlen;
177 size_t olen;
178 char *ibuf = name;
179 char outbuf[SMB_MAXFNAMELEN];
180 char *obuf = outbuf;
181
182 if (vcp->vc_tolocal) {
183 olen = sizeof(outbuf);
184 bzero(outbuf, sizeof(outbuf));
185
186 /*
187 error = iconv_conv_case
188 (vcp->vc_tolocal, NULL, NULL, &obuf, &olen, copt);
189 if (error) return error;
190 */
191
192 error = iconv_conv_case
193 (vcp->vc_tolocal, (const char **)&ibuf, &ilen, &obuf, &olen, copt);
194 if (!error) {
195 *nmlen = sizeof(outbuf) - olen;
196 memcpy(name, outbuf, *nmlen);
197 }
198 }
199 return error;
200 }
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