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
|
/*
Unix SMB/Netbios implementation.
smbd globals
Copyright (C) Stefan Metzmacher 2009
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "smbd/globals.h"
#if defined(WITH_AIO)
struct aio_extra *aio_list_head = NULL;
struct tevent_signal *aio_signal_event = NULL;
int aio_pending_size = 0;
int outstanding_aio_calls = 0;
#endif
#ifdef USE_DMAPI
struct smbd_dmapi_context *dmapi_ctx = NULL;
#endif
bool dfree_broken = false;
/* how many write cache buffers have been allocated */
unsigned int allocated_write_caches = 0;
int real_max_open_files = 0;
struct bitmap *file_bmap = NULL;
files_struct *Files = NULL;
int files_used = 0;
struct fsp_singleton_cache fsp_fi_cache = {
.fsp = NULL,
.id = {
.devid = 0,
.inode = 0,
.extid = 0
}
};
unsigned long file_gen_counter = 0;
int first_file = 0;
const struct mangle_fns *mangle_fns = NULL;
unsigned char *chartest = NULL;
TDB_CONTEXT *tdb_mangled_cache = NULL;
/* these tables are used to provide fast tests for characters */
unsigned char char_flags[256];
/*
this determines how many characters are used from the original filename
in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
The largest possible value is 6.
*/
unsigned mangle_prefix = 0;
unsigned char base_reverse[256];
struct msg_state *smbd_msg_state = NULL;
bool logged_ioctl_message = false;
int trans_num = 0;
pid_t mypid = 0;
time_t last_smb_conf_reload_time = 0;
time_t last_printer_reload_time = 0;
/****************************************************************************
structure to hold a linked list of queued messages.
for processing.
****************************************************************************/
struct pending_message_list *deferred_open_queue = NULL;
uint32_t common_flags2 = FLAGS2_LONG_PATH_COMPONENTS|FLAGS2_32_BIT_ERROR_CODES|FLAGS2_EXTENDED_ATTRIBUTES;
struct smb_srv_trans_enc_ctx *partial_srv_trans_enc_ctx = NULL;
struct smb_srv_trans_enc_ctx *srv_trans_enc_ctx = NULL;
/* A stack of security contexts. We include the current context as being
the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
int sec_ctx_stack_ndx = 0;
bool become_uid_done = false;
bool become_gid_done = false;
connection_struct *last_conn = NULL;
uint16_t last_flags = 0;
uint32_t global_client_caps = 0;
uint16_t fnf_handle = 257;
/* A stack of current_user connection contexts. */
struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
int conn_ctx_stack_ndx = 0;
struct vfs_init_function_entry *backends = NULL;
char *sparse_buf = NULL;
/* Current number of oplocks we have outstanding. */
int32_t exclusive_oplocks_open = 0;
int32_t level_II_oplocks_open = 0;
struct kernel_oplocks *koplocks = NULL;
int am_parent = 1;
int server_fd = -1;
struct event_context *smbd_event_ctx = NULL;
struct messaging_context *smbd_msg_ctx = NULL;
struct memcache *smbd_memcache_ctx = NULL;
bool exit_firsttime = true;
struct child_pid *children = 0;
int num_children = 0;
struct smbd_server_connection *smbd_server_conn = NULL;
struct messaging_context *smbd_messaging_context(void)
{
if (smbd_msg_ctx == NULL) {
smbd_msg_ctx = messaging_init(talloc_autofree_context(),
procid_self(),
smbd_event_context());
}
if (smbd_msg_ctx == NULL) {
DEBUG(0, ("Could not init smbd messaging context.\n"));
}
return smbd_msg_ctx;
}
struct memcache *smbd_memcache(void)
{
if (!smbd_memcache_ctx) {
smbd_memcache_ctx = memcache_init(talloc_autofree_context(),
lp_max_stat_cache_size()*1024);
}
if (!smbd_memcache_ctx) {
smb_panic("Could not init smbd memcache");
}
return smbd_memcache_ctx;
}
void smbd_init_globals(void)
{
ZERO_STRUCT(char_flags);
ZERO_STRUCT(base_reverse);
ZERO_STRUCT(conn_ctx_stack);
ZERO_STRUCT(sec_ctx_stack);
smbd_server_conn = talloc_zero(smbd_event_context(), struct smbd_server_connection);
if (!smbd_server_conn) {
exit_server("failed to create smbd_server_connection");
}
smbd_server_conn->smb1.echo_handler.trusted_fd = -1;
smbd_server_conn->smb1.echo_handler.socket_lock_fd = -1;
}
|
