1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* Unix SMB/CIFS implementation.
* UUID server routines
* Copyright (C) Theodore Ts'o 1996, 1997,
* Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002, 2003
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
/*
* Offset between 15-Oct-1582 and 1-Jan-70
*/
#define TIME_OFFSET_HIGH 0x01B21DD2
#define TIME_OFFSET_LOW 0x13814000
void smb_uuid_pack(const struct uuid uu, UUID_FLAT *ptr)
{
SIVAL(ptr->info, 0, uu.time_low);
SSVAL(ptr->info, 4, uu.time_mid);
SSVAL(ptr->info, 6, uu.time_hi_and_version);
memcpy(ptr->info+8, uu.clock_seq, 2);
memcpy(ptr->info+10, uu.node, 6);
}
void smb_uuid_unpack(const UUID_FLAT in, struct uuid *uu)
{
uu->time_low = IVAL(in.info, 0);
uu->time_mid = SVAL(in.info, 4);
uu->time_hi_and_version = SVAL(in.info, 6);
memcpy(uu->clock_seq, in.info+8, 2);
memcpy(uu->node, in.info+10, 6);
}
struct uuid smb_uuid_unpack_static(const UUID_FLAT in)
{
static struct uuid uu;
smb_uuid_unpack(in, &uu);
return uu;
}
void smb_uuid_generate_random(struct uuid *uu)
{
UUID_FLAT tmp;
generate_random_buffer(tmp.info, sizeof(tmp.info));
smb_uuid_unpack(tmp, uu);
uu->clock_seq[0] = (uu->clock_seq[0] & 0x3F) | 0x80;
uu->time_hi_and_version = (uu->time_hi_and_version & 0x0FFF) | 0x4000;
}
char *smb_uuid_to_string(const struct uuid uu)
{
char *out;
asprintf(&out, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
uu.time_low, uu.time_mid, uu.time_hi_and_version,
uu.clock_seq[0], uu.clock_seq[1],
uu.node[0], uu.node[1], uu.node[2],
uu.node[3], uu.node[4], uu.node[5]);
return out;
}
const char *smb_uuid_string_static(const struct uuid uu)
{
static char out[37];
slprintf(out, sizeof(out),
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
uu.time_low, uu.time_mid, uu.time_hi_and_version,
uu.clock_seq[0], uu.clock_seq[1],
uu.node[0], uu.node[1], uu.node[2],
uu.node[3], uu.node[4], uu.node[5]);
return out;
}
BOOL smb_string_to_uuid(const char *in, struct uuid* uu)
{
BOOL ret = False;
const char *ptr = in;
char *end = CONST_DISCARD(char *, in);
int i;
unsigned v1, v2;
if (!in || !uu) goto out;
uu->time_low = strtoul(ptr, &end, 16);
if ((end - ptr) != 8 || *end != '-') goto out;
ptr = (end + 1);
uu->time_mid = strtoul(ptr, &end, 16);
if ((end - ptr) != 4 || *end != '-') goto out;
ptr = (end + 1);
uu->time_hi_and_version = strtoul(ptr, &end, 16);
if ((end - ptr) != 4 || *end != '-') goto out;
ptr = (end + 1);
if (sscanf(ptr, "%02x%02x", &v1, &v2) != 2) {
goto out;
}
uu->clock_seq[0] = v1;
uu->clock_seq[1] = v2;
ptr += 4;
if (*ptr != '-') goto out;
ptr++;
for (i = 0; i < 6; i++) {
if (sscanf(ptr, "%02x", &v1) != 1) {
goto out;
}
uu->node[i] = v1;
ptr += 2;
}
ret = True;
out:
return ret;
}
|
