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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/*
Unix SMB/CIFS implementation.
UUID/GUID functions
Copyright (C) Theodore Ts'o 1996, 1997,
Copyright (C) Jim McDonough 2002.
Copyright (C) Andrew Tridgell 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"
/**
build a GUID from a string
*/
_PUBLIC_ NTSTATUS GUID_from_string(const char *s, struct GUID *guid)
{
NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
uint32_t time_low;
uint32_t time_mid, time_hi_and_version;
uint32_t clock_seq[2];
uint32_t node[6];
int i;
if (s == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
if (11 == sscanf(s, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
&time_low, &time_mid, &time_hi_and_version,
&clock_seq[0], &clock_seq[1],
&node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
status = NT_STATUS_OK;
} else if (11 == sscanf(s, "{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
&time_low, &time_mid, &time_hi_and_version,
&clock_seq[0], &clock_seq[1],
&node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
status = NT_STATUS_OK;
}
if (!NT_STATUS_IS_OK(status)) {
return status;
}
guid->time_low = time_low;
guid->time_mid = time_mid;
guid->time_hi_and_version = time_hi_and_version;
guid->clock_seq[0] = clock_seq[0];
guid->clock_seq[1] = clock_seq[1];
for (i=0;i<6;i++) {
guid->node[i] = node[i];
}
return NT_STATUS_OK;
}
/**
build a GUID from a string
*/
_PUBLIC_ NTSTATUS NS_GUID_from_string(const char *s, struct GUID *guid)
{
NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
uint32_t time_low;
uint32_t time_mid, time_hi_and_version;
uint32_t clock_seq[2];
uint32_t node[6];
int i;
if (s == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
if (11 == sscanf(s, "%08x-%04x%04x-%02x%02x%02x%02x-%02x%02x%02x%02x",
&time_low, &time_mid, &time_hi_and_version,
&clock_seq[0], &clock_seq[1],
&node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
status = NT_STATUS_OK;
}
if (!NT_STATUS_IS_OK(status)) {
return status;
}
guid->time_low = time_low;
guid->time_mid = time_mid;
guid->time_hi_and_version = time_hi_and_version;
guid->clock_seq[0] = clock_seq[0];
guid->clock_seq[1] = clock_seq[1];
for (i=0;i<6;i++) {
guid->node[i] = node[i];
}
return NT_STATUS_OK;
}
/**
* generate a random GUID
*/
struct GUID GUID_random(void)
{
struct GUID guid;
generate_random_buffer((uint8_t *)&guid, sizeof(guid));
guid.clock_seq[0] = (guid.clock_seq[0] & 0x3F) | 0x80;
guid.time_hi_and_version = (guid.time_hi_and_version & 0x0FFF) | 0x4000;
return guid;
}
/**
* generate an empty GUID
*/
_PUBLIC_ struct GUID GUID_zero(void)
{
struct GUID guid;
ZERO_STRUCT(guid);
return guid;
}
_PUBLIC_ BOOL GUID_all_zero(const struct GUID *u)
{
if (u->time_low != 0 ||
u->time_mid != 0 ||
u->time_hi_and_version != 0 ||
u->clock_seq[0] != 0 ||
u->clock_seq[1] != 0 ||
!all_zero(u->node, 6)) {
return False;
}
return True;
}
_PUBLIC_ BOOL GUID_equal(const struct GUID *u1, const struct GUID *u2)
{
if (u1->time_low != u2->time_low ||
u1->time_mid != u2->time_mid ||
u1->time_hi_and_version != u2->time_hi_and_version ||
u1->clock_seq[0] != u2->clock_seq[0] ||
u1->clock_seq[1] != u2->clock_seq[1] ||
memcmp(u1->node, u2->node, 6) != 0) {
return False;
}
return True;
}
/**
its useful to be able to display these in debugging messages
*/
_PUBLIC_ char *GUID_string(TALLOC_CTX *mem_ctx, const struct GUID *guid)
{
return talloc_asprintf(mem_ctx,
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
guid->time_low, guid->time_mid,
guid->time_hi_and_version,
guid->clock_seq[0],
guid->clock_seq[1],
guid->node[0], guid->node[1],
guid->node[2], guid->node[3],
guid->node[4], guid->node[5]);
}
_PUBLIC_ char *GUID_string2(TALLOC_CTX *mem_ctx, const struct GUID *guid)
{
char *ret, *s = GUID_string(mem_ctx, guid);
ret = talloc_asprintf(mem_ctx, "{%s}", s);
talloc_free(s);
return ret;
}
_PUBLIC_ char *NS_GUID_string(TALLOC_CTX *mem_ctx, const struct GUID *guid)
{
return talloc_asprintf(mem_ctx,
"%08x-%04x%04x-%02x%02x%02x%02x-%02x%02x%02x%02x",
guid->time_low, guid->time_mid,
guid->time_hi_and_version,
guid->clock_seq[0],
guid->clock_seq[1],
guid->node[0], guid->node[1],
guid->node[2], guid->node[3],
guid->node[4], guid->node[5]);
}
_PUBLIC_ BOOL policy_handle_empty(struct policy_handle *h)
{
return (h->handle_type == 0 && GUID_all_zero(&h->uuid));
}
|
