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1 | dnl # |
2 | dnl # Check if posix_acl_release can be used from a ZFS_META_LICENSED | |
3 | dnl # module. The is_owner_or_cap macro was replaced by | |
4 | dnl # inode_owner_or_capable | |
5 | dnl # | |
6 | AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_RELEASE], [ | |
7 | AC_MSG_CHECKING([whether posix_acl_release() is available]) | |
8 | ZFS_LINUX_TRY_COMPILE([ | |
9 | #include <linux/cred.h> | |
10 | #include <linux/fs.h> | |
11 | #include <linux/posix_acl.h> | |
12 | ],[ | |
13 | struct posix_acl* tmp = posix_acl_alloc(1, 0); | |
14 | posix_acl_release(tmp); | |
15 | ],[ | |
16 | AC_MSG_RESULT(yes) | |
17 | AC_DEFINE(HAVE_POSIX_ACL_RELEASE, 1, | |
18 | [posix_acl_release() is available]) | |
19 | ],[ | |
20 | AC_MSG_RESULT(no) | |
21 | ]) | |
22 | ||
23 | AC_MSG_CHECKING([whether posix_acl_release() is GPL-only]) | |
24 | ZFS_LINUX_TRY_COMPILE([ | |
25 | #include <linux/cred.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/posix_acl.h> | |
28 | ||
29 | MODULE_LICENSE("$ZFS_META_LICENSE"); | |
30 | ],[ | |
31 | struct posix_acl* tmp = posix_acl_alloc(1, 0); | |
32 | posix_acl_release(tmp); | |
33 | ],[ | |
34 | AC_MSG_RESULT(no) | |
35 | ],[ | |
36 | AC_MSG_RESULT(yes) | |
37 | AC_DEFINE(HAVE_POSIX_ACL_RELEASE_GPL_ONLY, 1, | |
38 | [posix_acl_release() is GPL-only]) | |
39 | ]) | |
40 | ]) | |
41 | ||
42 | dnl # | |
43 | dnl # 3.14 API change, | |
44 | dnl # set_cached_acl() and forget_cached_acl() changed from inline to | |
45 | dnl # EXPORT_SYMBOL. In the former case, they may not be usable because of | |
46 | dnl # posix_acl_release. In the latter case, we can always use them. | |
47 | dnl # | |
48 | AC_DEFUN([ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE], [ | |
49 | AC_MSG_CHECKING([whether set_cached_acl() is usable]) | |
50 | ZFS_LINUX_TRY_COMPILE([ | |
51 | #include <linux/module.h> | |
52 | #include <linux/cred.h> | |
53 | #include <linux/fs.h> | |
54 | #include <linux/posix_acl.h> | |
55 | ||
56 | MODULE_LICENSE("$ZFS_META_LICENSE"); | |
57 | ],[ | |
58 | struct inode *ip = NULL; | |
59 | struct posix_acl *acl = posix_acl_alloc(1, 0); | |
60 | set_cached_acl(ip, ACL_TYPE_ACCESS, acl); | |
61 | forget_cached_acl(ip, ACL_TYPE_ACCESS); | |
62 | ],[ | |
63 | AC_MSG_RESULT(yes) | |
64 | AC_DEFINE(HAVE_SET_CACHED_ACL_USABLE, 1, | |
65 | [posix_acl_release() is usable]) | |
66 | ],[ | |
67 | AC_MSG_RESULT(no) | |
68 | ]) | |
69 | ]) | |
70 | ||
71 | dnl # | |
72 | dnl # 3.1 API change, | |
73 | dnl # posix_acl_chmod_masq() is not exported anymore and posix_acl_chmod() | |
74 | dnl # was introduced to replace it. | |
75 | dnl # | |
76 | dnl # 3.14 API change, | |
77 | dnl # posix_acl_chmod() is changed to __posix_acl_chmod() | |
78 | dnl # | |
79 | AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_CHMOD], [ | |
80 | AC_MSG_CHECKING([whether posix_acl_chmod exists]) | |
81 | ZFS_LINUX_TRY_COMPILE([ | |
82 | #include <linux/fs.h> | |
83 | #include <linux/posix_acl.h> | |
84 | ],[ | |
85 | posix_acl_chmod(NULL, 0, 0) | |
86 | ],[ | |
87 | AC_MSG_RESULT(yes) | |
88 | AC_DEFINE(HAVE_POSIX_ACL_CHMOD, 1, [posix_acl_chmod() exists]) | |
89 | ],[ | |
90 | AC_MSG_RESULT(no) | |
91 | ]) | |
92 | ||
93 | AC_MSG_CHECKING([whether __posix_acl_chmod exists]) | |
94 | ZFS_LINUX_TRY_COMPILE([ | |
95 | #include <linux/fs.h> | |
96 | #include <linux/posix_acl.h> | |
97 | ],[ | |
98 | __posix_acl_chmod(NULL, 0, 0) | |
99 | ],[ | |
100 | AC_MSG_RESULT(yes) | |
101 | AC_DEFINE(HAVE___POSIX_ACL_CHMOD, 1, [__posix_acl_chmod() exists]) | |
102 | ],[ | |
103 | AC_MSG_RESULT(no) | |
104 | ]) | |
105 | ]) | |
106 | ||
107 | dnl # | |
108 | dnl # 3.1 API change, | |
109 | dnl # posix_acl_equiv_mode now wants an umode_t* instead of a mode_t* | |
110 | dnl # | |
111 | AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [ | |
112 | AC_MSG_CHECKING([whether posix_acl_equiv_mode() wants umode_t]) | |
113 | ZFS_LINUX_TRY_COMPILE([ | |
114 | #include <linux/fs.h> | |
115 | #include <linux/posix_acl.h> | |
116 | ],[ | |
117 | umode_t tmp; | |
118 | posix_acl_equiv_mode(NULL,&tmp); | |
119 | ],[ | |
120 | AC_MSG_RESULT(yes) | |
121 | AC_DEFINE(HAVE_POSIX_ACL_EQUIV_MODE_UMODE_T, 1, | |
122 | [ posix_acl_equiv_mode wants umode_t*]) | |
123 | ],[ | |
124 | AC_MSG_RESULT(no) | |
125 | ]) | |
126 | ]) | |
127 | ||
128 | dnl # | |
129 | dnl # 4.8 API change, | |
130 | dnl # The function posix_acl_valid now must be passed a namespace. | |
131 | dnl # | |
132 | AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS], [ | |
133 | AC_MSG_CHECKING([whether posix_acl_valid() wants user namespace]) | |
134 | ZFS_LINUX_TRY_COMPILE([ | |
135 | #include <linux/fs.h> | |
136 | #include <linux/posix_acl.h> | |
137 | ],[ | |
138 | struct user_namespace *user_ns = NULL; | |
139 | const struct posix_acl *acl = NULL; | |
140 | int error; | |
141 | ||
142 | error = posix_acl_valid(user_ns, acl); | |
143 | ],[ | |
144 | AC_MSG_RESULT(yes) | |
145 | AC_DEFINE(HAVE_POSIX_ACL_VALID_WITH_NS, 1, | |
146 | [posix_acl_valid() wants user namespace]) | |
147 | ],[ | |
148 | AC_MSG_RESULT(no) | |
149 | ]) | |
150 | ]) | |
151 | ||
152 | dnl # | |
153 | dnl # 2.6.27 API change, | |
154 | dnl # Check if inode_operations contains the function permission | |
155 | dnl # and expects the nameidata structure to have been removed. | |
156 | dnl # | |
157 | AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION], [ | |
158 | AC_MSG_CHECKING([whether iops->permission() exists]) | |
159 | ZFS_LINUX_TRY_COMPILE([ | |
160 | #include <linux/fs.h> | |
161 | ||
162 | int permission_fn(struct inode *inode, int mask) { return 0; } | |
163 | ||
164 | static const struct inode_operations | |
165 | iops __attribute__ ((unused)) = { | |
166 | .permission = permission_fn, | |
167 | }; | |
168 | ],[ | |
169 | ],[ | |
170 | AC_MSG_RESULT(yes) | |
171 | AC_DEFINE(HAVE_PERMISSION, 1, [iops->permission() exists]) | |
172 | ],[ | |
173 | AC_MSG_RESULT(no) | |
174 | ]) | |
175 | ]) | |
176 | ||
177 | dnl # | |
178 | dnl # 2.6.26 API change, | |
179 | dnl # Check if inode_operations contains the function permission | |
180 | dnl # and expects the nameidata structure to be passed. | |
181 | dnl # | |
182 | AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA], [ | |
183 | AC_MSG_CHECKING([whether iops->permission() wants nameidata]) | |
184 | ZFS_LINUX_TRY_COMPILE([ | |
185 | #include <linux/fs.h> | |
186 | ||
187 | int permission_fn(struct inode *inode, int mask, | |
188 | struct nameidata *nd) { return 0; } | |
189 | ||
190 | static const struct inode_operations | |
191 | iops __attribute__ ((unused)) = { | |
192 | .permission = permission_fn, | |
193 | }; | |
194 | ],[ | |
195 | ],[ | |
196 | AC_MSG_RESULT(yes) | |
197 | AC_DEFINE(HAVE_PERMISSION, 1, [iops->permission() exists]) | |
198 | AC_DEFINE(HAVE_PERMISSION_WITH_NAMEIDATA, 1, | |
199 | [iops->permission() with nameidata exists]) | |
200 | ],[ | |
201 | AC_MSG_RESULT(no) | |
202 | ]) | |
203 | ]) | |
204 | ||
205 | dnl # | |
206 | dnl # 2.6.32 API change, | |
207 | dnl # Check if inode_operations contains the function check_acl | |
208 | dnl # | |
209 | AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL], [ | |
210 | AC_MSG_CHECKING([whether iops->check_acl() exists]) | |
211 | ZFS_LINUX_TRY_COMPILE([ | |
212 | #include <linux/fs.h> | |
213 | ||
214 | int check_acl_fn(struct inode *inode, int mask) { return 0; } | |
215 | ||
216 | static const struct inode_operations | |
217 | iops __attribute__ ((unused)) = { | |
218 | .check_acl = check_acl_fn, | |
219 | }; | |
220 | ],[ | |
221 | ],[ | |
222 | AC_MSG_RESULT(yes) | |
223 | AC_DEFINE(HAVE_CHECK_ACL, 1, [iops->check_acl() exists]) | |
224 | ],[ | |
225 | AC_MSG_RESULT(no) | |
226 | ]) | |
227 | ]) | |
228 | ||
229 | dnl # | |
230 | dnl # 2.6.38 API change, | |
231 | dnl # The function check_acl gained a new parameter: flags | |
232 | dnl # | |
233 | AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS], [ | |
234 | AC_MSG_CHECKING([whether iops->check_acl() wants flags]) | |
235 | ZFS_LINUX_TRY_COMPILE([ | |
236 | #include <linux/fs.h> | |
237 | ||
238 | int check_acl_fn(struct inode *inode, int mask, | |
239 | unsigned int flags) { return 0; } | |
240 | ||
241 | static const struct inode_operations | |
242 | iops __attribute__ ((unused)) = { | |
243 | .check_acl = check_acl_fn, | |
244 | }; | |
245 | ],[ | |
246 | ],[ | |
247 | AC_MSG_RESULT(yes) | |
248 | AC_DEFINE(HAVE_CHECK_ACL, 1, [iops->check_acl() exists]) | |
249 | AC_DEFINE(HAVE_CHECK_ACL_WITH_FLAGS, 1, | |
250 | [iops->check_acl() wants flags]) | |
251 | ],[ | |
252 | AC_MSG_RESULT(no) | |
253 | ]) | |
254 | ]) | |
255 | ||
256 | dnl # | |
257 | dnl # 3.1 API change, | |
258 | dnl # Check if inode_operations contains the function get_acl | |
259 | dnl # | |
260 | AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL], [ | |
261 | AC_MSG_CHECKING([whether iops->get_acl() exists]) | |
262 | ZFS_LINUX_TRY_COMPILE([ | |
263 | #include <linux/fs.h> | |
264 | ||
265 | struct posix_acl *get_acl_fn(struct inode *inode, int type) | |
266 | { return NULL; } | |
267 | ||
268 | static const struct inode_operations | |
269 | iops __attribute__ ((unused)) = { | |
270 | .get_acl = get_acl_fn, | |
271 | }; | |
272 | ],[ | |
273 | ],[ | |
274 | AC_MSG_RESULT(yes) | |
275 | AC_DEFINE(HAVE_GET_ACL, 1, [iops->get_acl() exists]) | |
276 | ],[ | |
277 | AC_MSG_RESULT(no) | |
278 | ]) | |
279 | ]) | |
280 | ||
281 | dnl # | |
282 | dnl # 3.14 API change, | |
283 | dnl # Check if inode_operations contains the function set_acl | |
284 | dnl # | |
285 | AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [ | |
286 | AC_MSG_CHECKING([whether iops->set_acl() exists]) | |
287 | ZFS_LINUX_TRY_COMPILE([ | |
288 | #include <linux/fs.h> | |
289 | ||
290 | int set_acl_fn(struct inode *inode, struct posix_acl *acl, int type) | |
291 | { return 0; } | |
292 | ||
293 | static const struct inode_operations | |
294 | iops __attribute__ ((unused)) = { | |
295 | .set_acl = set_acl_fn, | |
296 | }; | |
297 | ],[ | |
298 | ],[ | |
299 | AC_MSG_RESULT(yes) | |
300 | AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists]) | |
301 | ],[ | |
302 | AC_MSG_RESULT(no) | |
303 | ]) | |
304 | ]) | |
305 | ||
306 | dnl # | |
307 | dnl # 4.7 API change, | |
308 | dnl # The kernel get_acl will now check cache before calling i_op->get_acl and | |
309 | dnl # do set_cached_acl after that, so i_op->get_acl don't need to do that | |
310 | dnl # anymore. | |
311 | dnl # | |
312 | AC_DEFUN([ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE], [ | |
313 | AC_MSG_CHECKING([whether uncached_acl_sentinel() exists]) | |
314 | ZFS_LINUX_TRY_COMPILE([ | |
315 | #include <linux/fs.h> | |
316 | ],[ | |
317 | void *sentinel __attribute__ ((unused)) = uncached_acl_sentinel(NULL); | |
318 | ],[ | |
319 | AC_MSG_RESULT(yes) | |
320 | AC_DEFINE(HAVE_KERNEL_GET_ACL_HANDLE_CACHE, 1, [uncached_acl_sentinel() exists]) | |
321 | ],[ | |
322 | AC_MSG_RESULT(no) | |
323 | ]) | |
324 | ]) |