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/CIFS implementation.
Main metadata server / Spotlight routines
Copyright (C) Ralph Boehme 2012-2014
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/>.
*/
#ifndef _MDSSVC_H
#define _MDSSVC_H
#include "dalloc.h"
#include "marshalling.h"
#include "lib/util/dlinklist.h"
#include "librpc/gen_ndr/mdssvc.h"
/*
* glib uses TRUE and FALSE which was redefined by "includes.h" to be
* unusable, undefine so glib can establish its own working
* replacement.
*/
#undef TRUE
#undef FALSE
#define MAX_SL_RESULTS 100
#define SL_PAGESIZE 50
#define MAX_SL_RUNTIME 30
#define MDS_TRACKER_ASYNC_TIMEOUT_MS 250
#define SLQ_DEBUG(lvl, _slq, state) do { if (CHECK_DEBUGLVL(lvl)) { \
const struct sl_query *__slq = _slq; \
struct timeval_buf start_buf; \
const char *start; \
struct timeval_buf last_used_buf; \
const char *last_used; \
struct timeval_buf expire_buf; \
const char *expire; \
start = timeval_str_buf(&__slq->start_time, false, \
true, &start_buf); \
last_used = timeval_str_buf(&__slq->last_used, false, \
true, &last_used_buf); \
expire = timeval_str_buf(&__slq->expire_time, false, \
true, &expire_buf); \
DEBUG(lvl,("%s slq[0x%jx,0x%jx], start: %s, last_used: %s, " \
"expires: %s, query: '%s'\n", state, \
(uintmax_t)__slq->ctx1, (uintmax_t)__slq->ctx2, \
start, last_used, expire, __slq->query_string)); \
}} while(0)
/******************************************************************************
* Some helper stuff dealing with queries
******************************************************************************/
/* query state */
typedef enum {
SLQ_STATE_NEW, /* Query received from client */
SLQ_STATE_RUNNING, /* Query dispatched to Tracker */
SLQ_STATE_RESULTS, /* Async Tracker query read */
SLQ_STATE_FULL, /* the max amount of result has been queued */
SLQ_STATE_DONE, /* Got all results from Tracker */
SLQ_STATE_END, /* Query results returned to client */
SLQ_STATE_ERROR /* an error happened somewhere */
} slq_state_t;
/* query structure */
struct sl_query {
struct sl_query *prev, *next; /* list pointers */
struct mds_ctx *mds_ctx; /* context handle */
void *backend_private; /* search backend private data */
slq_state_t state; /* query state */
struct timeval start_time; /* Query start time */
struct timeval last_used; /* Time of last result fetch */
struct timeval expire_time; /* Query expiration time */
struct tevent_timer *te; /* query timeout */
uint64_t ctx1; /* client context 1 */
uint64_t ctx2; /* client context 2 */
sl_array_t *reqinfo; /* array with requested metadata */
char *query_string; /* the Spotlight query string */
uint64_t *cnids; /* restrict query to these CNIDs */
size_t cnids_num; /* Size of slq_cnids array */
const char *path_scope; /* path to directory to search */
struct sl_rslts *query_results; /* query results */
TALLOC_CTX *entries_ctx; /* talloc parent of the search results */
};
struct sl_rslts {
int num_results;
sl_cnids_t *cnids;
sl_array_t *fm_array;
};
struct sl_inode_path_map {
struct mds_ctx *mds_ctx;
uint64_t ino;
char *path;
struct stat_ex st;
};
/* Per process state */
struct mdssvc_ctx {
struct tevent_context *ev_ctx;
void *backend_private;
};
/* Per tree connect state */
struct mds_ctx {
struct mdssvc_backend *backend;
struct mdssvc_ctx *mdssvc_ctx;
void *backend_private;
struct auth_session_info *pipe_session_info;
struct dom_sid sid;
uid_t uid;
smb_iconv_t ic_nfc_to_nfd;
smb_iconv_t ic_nfd_to_nfc;
int snum;
const char *sharename;
const char *spath;
size_t spath_len;
struct connection_struct *conn;
struct sl_query *query_list; /* list of active queries */
struct db_context *ino_path_map; /* dbwrap rbt for storing inode->path mappings */
};
struct mdssvc_backend {
bool (*init)(struct mdssvc_ctx *mdssvc_ctx);
bool (*connect)(struct mds_ctx *mds_ctx);
bool (*search_map)(struct sl_query *slq);
bool (*search_start)(struct sl_query *slq);
bool (*search_cont)(struct sl_query *slq);
bool (*shutdown)(struct mdssvc_ctx *mdssvc_ctx);
};
/******************************************************************************
* Function declarations
******************************************************************************/
/*
* mdssvc.c
*/
extern bool mds_init(struct messaging_context *msg_ctx);
extern bool mds_shutdown(void);
NTSTATUS mds_init_ctx(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct messaging_context *msg_ctx,
struct auth_session_info *session_info,
int snum,
const char *sharename,
const char *path,
struct mds_ctx **_mds_ctx);
extern bool mds_dispatch(struct mds_ctx *mds_ctx,
struct mdssvc_blob *request_blob,
struct mdssvc_blob *response_blob,
size_t max_fragment_size);
bool mds_add_result(struct sl_query *slq, const char *path);
#endif /* _MDSSVC_H */
|
