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: head/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
48MALLOC_DEFINE(M_SMBFSDATA, "smbfs_data", "SMBFS private data");
49
50void
51smb_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
57void
58smb_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 */
67static int64_t DIFF1970TO1601 = 11644473600ULL;
68
69/*
70 * Time from server comes as UTC, so no need to use tz
71 */
72void
73smb_time_NT2local(int64_t nsec, int tzoff, struct timespec *tsp)
74{
75 smb_time_server2local(nsec / 10000000 - DIFF1970TO1601, 0, tsp);
76}
77
78void
79smb_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
87void
88smb_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
100void
101smb_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
109static int
110smb_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
144int
145smbfs_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
170int
171smbfs_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}