Line data Source code
1 : /*
2 : * Unix SMB/CIFS implementation.
3 : * Wrapper for GPFS library
4 : * Copyright (C) Volker Lendecke 2005
5 : * Copyright (C) Christof Schmitt 2015
6 : *
7 : * This program is free software; you can redistribute it and/or modify
8 : * it under the terms of the GNU General Public License as published by
9 : * the Free Software Foundation; either version 3 of the License, or
10 : * (at your option) any later version.
11 : *
12 : * This program is distributed in the hope that it will be useful,
13 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 : * GNU General Public License for more details.
16 : *
17 : * You should have received a copy of the GNU General Public License
18 : * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 : */
20 :
21 : #include "replace.h"
22 : #include "gpfswrap.h"
23 :
24 : static int (*gpfs_set_share_fn)(int fd, unsigned int allow, unsigned int deny);
25 : static int (*gpfs_set_lease_fn)(int fd, unsigned int type);
26 : static int (*gpfs_getacl_fn)(const char *pathname, int flags, void *acl);
27 : static int (*gpfs_putacl_fn)(const char *pathname, int flags, void *acl);
28 : static int (*gpfs_get_realfilename_path_fn)(const char *pathname,
29 : char *filenamep,
30 : int *len);
31 : static int (*gpfs_set_winattrs_path_fn)(const char *pathname,
32 : int flags,
33 : struct gpfs_winattr *attrs);
34 : static int (*gpfs_set_winattrs_fn)(int fd, int flags,
35 : struct gpfs_winattr *attrs);
36 : static int (*gpfs_get_winattrs_path_fn)(const char *pathname,
37 : struct gpfs_winattr *attrs);
38 : static int (*gpfs_get_winattrs_fn)(int fd, struct gpfs_winattr *attrs);
39 : static int (*gpfs_ftruncate_fn)(int fd, gpfs_off64_t length);
40 : static int (*gpfs_lib_init_fn)(int flags);
41 : static int (*gpfs_set_times_fn)(int fd, int flags, gpfs_timestruc_t times[4]);
42 : static int (*gpfs_set_times_path_fn)(char *path,
43 : int flags,
44 : gpfs_timestruc_t times[4]);
45 : static int (*gpfs_quotactl_fn)(const char *pathname,
46 : int cmd,
47 : int id,
48 : void *bufp);
49 : static int (*gpfs_init_trace_fn)(void);
50 : static int (*gpfs_query_trace_fn)(void);
51 : static void (*gpfs_add_trace_fn)(int level, const char *msg);
52 : static void (*gpfs_fini_trace_fn)(void);
53 : static int (*gpfs_fstat_x_fn)(int fd, unsigned int *litemask,
54 : struct gpfs_iattr64 *iattr, size_t len);
55 : static int (*gpfs_stat_x_fn)(const char *pathname, unsigned int *litemask,
56 : struct gpfs_iattr64 *iattr, size_t len);
57 :
58 160598 : int gpfswrap_init(void)
59 : {
60 : static void *l;
61 :
62 160598 : if (l != NULL) {
63 0 : return 0;
64 : }
65 :
66 160598 : l = dlopen("libgpfs.so", RTLD_LAZY);
67 160598 : if (l == NULL) {
68 157081 : return -1;
69 : }
70 :
71 0 : gpfs_set_share_fn = dlsym(l, "gpfs_set_share");
72 0 : gpfs_set_lease_fn = dlsym(l, "gpfs_set_lease");
73 0 : gpfs_getacl_fn = dlsym(l, "gpfs_getacl");
74 0 : gpfs_putacl_fn = dlsym(l, "gpfs_putacl");
75 0 : gpfs_get_realfilename_path_fn = dlsym(l, "gpfs_get_realfilename_path");
76 0 : gpfs_set_winattrs_path_fn = dlsym(l, "gpfs_set_winattrs_path");
77 0 : gpfs_set_winattrs_fn = dlsym(l, "gpfs_set_winattrs");
78 0 : gpfs_get_winattrs_path_fn = dlsym(l, "gpfs_get_winattrs_path");
79 0 : gpfs_get_winattrs_fn = dlsym(l, "gpfs_get_winattrs");
80 0 : gpfs_ftruncate_fn = dlsym(l, "gpfs_ftruncate");
81 0 : gpfs_lib_init_fn = dlsym(l, "gpfs_lib_init");
82 0 : gpfs_set_times_fn = dlsym(l, "gpfs_set_times");
83 0 : gpfs_set_times_path_fn = dlsym(l, "gpfs_set_times_path");
84 0 : gpfs_quotactl_fn = dlsym(l, "gpfs_quotactl");
85 0 : gpfs_init_trace_fn = dlsym(l, "gpfs_init_trace");
86 0 : gpfs_query_trace_fn = dlsym(l, "gpfs_query_trace");
87 0 : gpfs_add_trace_fn = dlsym(l, "gpfs_add_trace");
88 0 : gpfs_fini_trace_fn = dlsym(l, "gpfs_fini_trace");
89 0 : gpfs_fstat_x_fn = dlsym(l, "gpfs_fstat_x");
90 0 : gpfs_stat_x_fn = dlsym(l, "gpfs_stat_x");
91 :
92 0 : return 0;
93 : }
94 :
95 0 : int gpfswrap_set_share(int fd, unsigned int allow, unsigned int deny)
96 : {
97 0 : if (gpfs_set_share_fn == NULL) {
98 0 : errno = ENOSYS;
99 0 : return -1;
100 : }
101 :
102 0 : return gpfs_set_share_fn(fd, allow, deny);
103 : }
104 :
105 0 : int gpfswrap_set_lease(int fd, unsigned int type)
106 : {
107 0 : if (gpfs_set_lease_fn == NULL) {
108 0 : errno = ENOSYS;
109 0 : return -1;
110 : }
111 :
112 0 : return gpfs_set_lease_fn(fd, type);
113 : }
114 :
115 0 : int gpfswrap_getacl(const char *pathname, int flags, void *acl)
116 : {
117 0 : if (gpfs_getacl_fn == NULL) {
118 0 : errno = ENOSYS;
119 0 : return -1;
120 : }
121 :
122 0 : return gpfs_getacl_fn(pathname, flags, acl);
123 : }
124 :
125 0 : int gpfswrap_putacl(const char *pathname, int flags, void *acl)
126 : {
127 0 : if (gpfs_putacl_fn == NULL) {
128 0 : errno = ENOSYS;
129 0 : return -1;
130 : }
131 :
132 0 : return gpfs_putacl_fn(pathname, flags, acl);
133 : }
134 :
135 0 : int gpfswrap_get_realfilename_path(const char *pathname,
136 : char *filenamep,
137 : int *len)
138 : {
139 0 : if (gpfs_get_realfilename_path_fn == NULL) {
140 0 : errno = ENOSYS;
141 0 : return -1;
142 : }
143 :
144 0 : return gpfs_get_realfilename_path_fn(pathname, filenamep, len);
145 : }
146 :
147 0 : int gpfswrap_set_winattrs_path(const char *pathname,
148 : int flags,
149 : struct gpfs_winattr *attrs)
150 : {
151 0 : if (gpfs_set_winattrs_path_fn == NULL) {
152 0 : errno = ENOSYS;
153 0 : return -1;
154 : }
155 :
156 0 : return gpfs_set_winattrs_path_fn(pathname, flags, attrs);
157 : }
158 :
159 0 : int gpfswrap_set_winattrs(int fd, int flags, struct gpfs_winattr *attrs)
160 : {
161 0 : if (gpfs_set_winattrs_fn == NULL) {
162 0 : errno = ENOSYS;
163 0 : return -1;
164 : }
165 :
166 0 : return gpfs_set_winattrs_fn(fd, flags, attrs);
167 : }
168 :
169 0 : int gpfswrap_get_winattrs_path(const char *pathname,
170 : struct gpfs_winattr *attrs)
171 : {
172 0 : if (gpfs_get_winattrs_path_fn == NULL) {
173 0 : errno = ENOSYS;
174 0 : return -1;
175 : }
176 :
177 0 : return gpfs_get_winattrs_path_fn(pathname, attrs);
178 : }
179 :
180 0 : int gpfswrap_get_winattrs(int fd, struct gpfs_winattr *attrs)
181 : {
182 0 : if (gpfs_get_winattrs_fn == NULL) {
183 0 : errno = ENOSYS;
184 0 : return -1;
185 : }
186 :
187 0 : return gpfs_get_winattrs_fn(fd, attrs);
188 : }
189 :
190 0 : int gpfswrap_ftruncate(int fd, gpfs_off64_t length)
191 : {
192 0 : if (gpfs_ftruncate_fn == NULL) {
193 0 : errno = ENOSYS;
194 0 : return -1;
195 : }
196 :
197 0 : return gpfs_ftruncate_fn(fd, length);
198 : }
199 :
200 0 : int gpfswrap_lib_init(int flags)
201 : {
202 0 : if (gpfs_lib_init_fn == NULL) {
203 0 : errno = ENOSYS;
204 0 : return -1;
205 : }
206 :
207 0 : return gpfs_lib_init_fn(flags);
208 : }
209 :
210 0 : int gpfswrap_set_times(int fd, int flags, gpfs_timestruc_t times[4])
211 : {
212 0 : if (gpfs_set_times_fn == NULL) {
213 0 : errno = ENOSYS;
214 0 : return -1;
215 : }
216 :
217 0 : return gpfs_set_times_fn(fd, flags, times);
218 : }
219 :
220 0 : int gpfswrap_set_times_path(char *path, int flags, gpfs_timestruc_t times[4])
221 : {
222 0 : if (gpfs_set_times_path_fn == NULL) {
223 0 : errno = ENOSYS;
224 0 : return -1;
225 : }
226 :
227 0 : return gpfs_set_times_path_fn(path, flags, times);
228 : }
229 :
230 0 : int gpfswrap_quotactl(const char *pathname, int cmd, int id, void *bufp)
231 : {
232 0 : if (gpfs_quotactl_fn == NULL) {
233 0 : errno = ENOSYS;
234 0 : return -1;
235 : }
236 :
237 0 : return gpfs_quotactl_fn(pathname, cmd, id, bufp);
238 : }
239 :
240 0 : int gpfswrap_init_trace(void)
241 : {
242 0 : if (gpfs_init_trace_fn == NULL) {
243 0 : errno = ENOSYS;
244 0 : return -1;
245 : }
246 :
247 0 : return gpfs_init_trace_fn();
248 : }
249 :
250 0 : int gpfswrap_query_trace(void)
251 : {
252 0 : if (gpfs_query_trace_fn == NULL) {
253 0 : errno = ENOSYS;
254 0 : return -1;
255 : }
256 :
257 0 : return gpfs_query_trace_fn();
258 : }
259 :
260 0 : void gpfswrap_add_trace(int level, const char *msg)
261 : {
262 0 : if (gpfs_add_trace_fn == NULL) {
263 0 : return;
264 : }
265 :
266 0 : gpfs_add_trace_fn(level, msg);
267 : }
268 :
269 0 : void gpfswrap_fini_trace(void)
270 : {
271 0 : if (gpfs_fini_trace_fn == NULL) {
272 0 : return;
273 : }
274 :
275 0 : gpfs_fini_trace_fn();
276 : }
277 :
278 0 : int gpfswrap_fstat_x(int fd, unsigned int *litemask,
279 : struct gpfs_iattr64 *iattr, size_t len)
280 : {
281 0 : if (gpfs_fstat_x_fn == NULL) {
282 0 : errno = ENOSYS;
283 0 : return -1;
284 : }
285 :
286 0 : return gpfs_fstat_x_fn(fd, litemask, iattr, len);
287 : }
288 :
289 0 : int gpfswrap_stat_x(const char *pathname, unsigned int *litemask,
290 : struct gpfs_iattr64 *iattr, size_t len)
291 : {
292 0 : if (gpfs_stat_x_fn == NULL) {
293 0 : errno = ENOSYS;
294 0 : return -1;
295 : }
296 :
297 0 : return gpfs_stat_x_fn(pathname, litemask, iattr, len);
298 : }
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