1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2000-2001 Boris Popov
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
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 MALLOC_DEFINE(M_SMBFSCRED, "smbfs_cred", "SMBFS cred data");
50
51 void
smb_time_local2server(struct timespec * tsp,int tzoff,u_long * seconds)52 smb_time_local2server(struct timespec *tsp, int tzoff, u_long *seconds)
53 {
54 *seconds = tsp->tv_sec - tzoff * 60 /*- tz_minuteswest * 60 -
55 (wall_cmos_clock ? adjkerntz : 0)*/;
56 }
57
58 void
smb_time_server2local(u_long seconds,int tzoff,struct timespec * tsp)59 smb_time_server2local(u_long seconds, int tzoff, struct timespec *tsp)
60 {
61 tsp->tv_sec = seconds + tzoff * 60;
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
smb_time_NT2local(int64_t nsec,int tzoff,struct timespec * tsp)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
smb_time_local2NT(struct timespec * tsp,int tzoff,int64_t * nsec)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
smb_time_unix2dos(struct timespec * tsp,int tzoff,u_int16_t * ddp,u_int16_t * dtp,u_int8_t * dhp)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
smb_dos2unixtime(u_int dd,u_int dt,u_int dh,int tzoff,struct timespec * tsp)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 int
smbfs_fullpath(struct mbchain * mbp,struct smb_vc * vcp,struct smbnode * dnp,const char * name,int nmlen)110 smbfs_fullpath(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *dnp,
111 const char *name, int nmlen)
112 {
113 int caseopt = SMB_CS_NONE;
114 int error;
115
116 if (SMB_UNICODE_STRINGS(vcp)) {
117 error = mb_put_padbyte(mbp);
118 if (error)
119 return error;
120 }
121 if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0)
122 caseopt |= SMB_CS_UPPER;
123 if (dnp != NULL) {
124 error = smb_put_dmem(mbp, vcp, dnp->n_rpath, dnp->n_rplen,
125 caseopt);
126 if (error)
127 return error;
128 if (name) {
129 /* Put the separator */
130 if (SMB_UNICODE_STRINGS(vcp))
131 error = mb_put_uint16le(mbp, '\\');
132 else
133 error = mb_put_uint8(mbp, '\\');
134 if (error)
135 return error;
136 /* Put the name */
137 error = smb_put_dmem(mbp, vcp, name, nmlen, caseopt);
138 if (error)
139 return error;
140 }
141 }
142 /* Put NULL terminator. */
143 if (SMB_UNICODE_STRINGS(vcp))
144 error = mb_put_uint16le(mbp, 0);
145 else
146 error = mb_put_uint8(mbp, 0);
147 return error;
148 }
149
150 int
smbfs_fname_tolocal(struct smb_vc * vcp,char * name,int * nmlen,int caseopt)151 smbfs_fname_tolocal(struct smb_vc *vcp, char *name, int *nmlen, int caseopt)
152 {
153 int copt = (caseopt == SMB_CS_LOWER ? KICONV_FROM_LOWER :
154 (caseopt == SMB_CS_UPPER ? KICONV_FROM_UPPER : 0));
155 int error = 0;
156 size_t ilen = *nmlen;
157 size_t olen;
158 char *ibuf = name;
159 char outbuf[SMB_MAXFNAMELEN];
160 char *obuf = outbuf;
161
162 if (vcp->vc_tolocal) {
163 olen = sizeof(outbuf);
164 bzero(outbuf, sizeof(outbuf));
165
166 /*
167 error = iconv_conv_case
168 (vcp->vc_tolocal, NULL, NULL, &obuf, &olen, copt);
169 if (error) return error;
170 */
171
172 error = iconv_conv_case(vcp->vc_tolocal,
173 __DECONST(const char **, &ibuf), &ilen, &obuf, &olen, copt);
174 if (error && SMB_UNICODE_STRINGS(vcp)) {
175 /*
176 * If using unicode, leaving a file name as it was when
177 * convert fails will cause a problem because the file name
178 * will contain NULL.
179 * Here, put '?' and give converted file name.
180 */
181 *obuf = '?';
182 olen--;
183 error = 0;
184 }
185 if (!error) {
186 *nmlen = sizeof(outbuf) - olen;
187 memcpy(name, outbuf, *nmlen);
188 }
189 }
190 return error;
191 }
192
193 void *
smbfs_malloc_scred(void)194 smbfs_malloc_scred(void)
195 {
196 return (malloc(sizeof(struct smb_cred), M_SMBFSCRED, M_WAITOK));
197 }
198
199 void
smbfs_free_scred(void * scred)200 smbfs_free_scred(void *scred)
201 {
202 free(scred, M_SMBFSCRED);
203 }
204