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Commit | Line | Data |
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f7be4ee0 MM |
1 | /* |
2 | * (C) 2001 Clemson University and The University of Chicago | |
3 | * | |
4 | * See COPYING in top-level directory. | |
5 | */ | |
6 | #include "protocol.h" | |
7 | #include "pvfs2-kernel.h" | |
8 | #include "pvfs2-dev-proto.h" | |
9 | #include "pvfs2-bufmap.h" | |
10 | ||
11 | __s32 fsid_of_op(struct pvfs2_kernel_op_s *op) | |
12 | { | |
13 | __s32 fsid = PVFS_FS_ID_NULL; | |
14 | ||
15 | if (op) { | |
16 | switch (op->upcall.type) { | |
17 | case PVFS2_VFS_OP_FILE_IO: | |
18 | fsid = op->upcall.req.io.refn.fs_id; | |
19 | break; | |
20 | case PVFS2_VFS_OP_LOOKUP: | |
21 | fsid = op->upcall.req.lookup.parent_refn.fs_id; | |
22 | break; | |
23 | case PVFS2_VFS_OP_CREATE: | |
24 | fsid = op->upcall.req.create.parent_refn.fs_id; | |
25 | break; | |
26 | case PVFS2_VFS_OP_GETATTR: | |
27 | fsid = op->upcall.req.getattr.refn.fs_id; | |
28 | break; | |
29 | case PVFS2_VFS_OP_REMOVE: | |
30 | fsid = op->upcall.req.remove.parent_refn.fs_id; | |
31 | break; | |
32 | case PVFS2_VFS_OP_MKDIR: | |
33 | fsid = op->upcall.req.mkdir.parent_refn.fs_id; | |
34 | break; | |
35 | case PVFS2_VFS_OP_READDIR: | |
36 | fsid = op->upcall.req.readdir.refn.fs_id; | |
37 | break; | |
38 | case PVFS2_VFS_OP_SETATTR: | |
39 | fsid = op->upcall.req.setattr.refn.fs_id; | |
40 | break; | |
41 | case PVFS2_VFS_OP_SYMLINK: | |
42 | fsid = op->upcall.req.sym.parent_refn.fs_id; | |
43 | break; | |
44 | case PVFS2_VFS_OP_RENAME: | |
45 | fsid = op->upcall.req.rename.old_parent_refn.fs_id; | |
46 | break; | |
47 | case PVFS2_VFS_OP_STATFS: | |
48 | fsid = op->upcall.req.statfs.fs_id; | |
49 | break; | |
50 | case PVFS2_VFS_OP_TRUNCATE: | |
51 | fsid = op->upcall.req.truncate.refn.fs_id; | |
52 | break; | |
53 | case PVFS2_VFS_OP_MMAP_RA_FLUSH: | |
54 | fsid = op->upcall.req.ra_cache_flush.refn.fs_id; | |
55 | break; | |
56 | case PVFS2_VFS_OP_FS_UMOUNT: | |
57 | fsid = op->upcall.req.fs_umount.fs_id; | |
58 | break; | |
59 | case PVFS2_VFS_OP_GETXATTR: | |
60 | fsid = op->upcall.req.getxattr.refn.fs_id; | |
61 | break; | |
62 | case PVFS2_VFS_OP_SETXATTR: | |
63 | fsid = op->upcall.req.setxattr.refn.fs_id; | |
64 | break; | |
65 | case PVFS2_VFS_OP_LISTXATTR: | |
66 | fsid = op->upcall.req.listxattr.refn.fs_id; | |
67 | break; | |
68 | case PVFS2_VFS_OP_REMOVEXATTR: | |
69 | fsid = op->upcall.req.removexattr.refn.fs_id; | |
70 | break; | |
71 | case PVFS2_VFS_OP_FSYNC: | |
72 | fsid = op->upcall.req.fsync.refn.fs_id; | |
73 | break; | |
74 | default: | |
75 | break; | |
76 | } | |
77 | } | |
78 | return fsid; | |
79 | } | |
80 | ||
81 | static void pvfs2_set_inode_flags(struct inode *inode, | |
82 | struct PVFS_sys_attr_s *attrs) | |
83 | { | |
84 | if (attrs->flags & PVFS_IMMUTABLE_FL) | |
85 | inode->i_flags |= S_IMMUTABLE; | |
86 | else | |
87 | inode->i_flags &= ~S_IMMUTABLE; | |
88 | ||
89 | if (attrs->flags & PVFS_APPEND_FL) | |
90 | inode->i_flags |= S_APPEND; | |
91 | else | |
92 | inode->i_flags &= ~S_APPEND; | |
93 | ||
94 | if (attrs->flags & PVFS_NOATIME_FL) | |
95 | inode->i_flags |= S_NOATIME; | |
96 | else | |
97 | inode->i_flags &= ~S_NOATIME; | |
98 | ||
99 | } | |
100 | ||
101 | /* NOTE: symname is ignored unless the inode is a sym link */ | |
102 | static int copy_attributes_to_inode(struct inode *inode, | |
103 | struct PVFS_sys_attr_s *attrs, | |
104 | char *symname) | |
105 | { | |
106 | int ret = -1; | |
107 | int perm_mode = 0; | |
108 | struct pvfs2_inode_s *pvfs2_inode = PVFS2_I(inode); | |
109 | loff_t inode_size = 0; | |
110 | loff_t rounded_up_size = 0; | |
111 | ||
112 | ||
113 | /* | |
54804949 MM |
114 | * arbitrarily set the inode block size; FIXME: we need to |
115 | * resolve the difference between the reported inode blocksize | |
116 | * and the PAGE_CACHE_SIZE, since our block count will always | |
117 | * be wrong. | |
118 | * | |
119 | * For now, we're setting the block count to be the proper | |
120 | * number assuming the block size is 512 bytes, and the size is | |
121 | * rounded up to the nearest 4K. This is apparently required | |
122 | * to get proper size reports from the 'du' shell utility. | |
123 | * | |
124 | * changing the inode->i_blkbits to something other than | |
125 | * PAGE_CACHE_SHIFT breaks mmap/execution as we depend on that. | |
f7be4ee0 MM |
126 | */ |
127 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
128 | "attrs->mask = %x (objtype = %s)\n", | |
129 | attrs->mask, | |
130 | attrs->objtype == PVFS_TYPE_METAFILE ? "file" : | |
131 | attrs->objtype == PVFS_TYPE_DIRECTORY ? "directory" : | |
132 | attrs->objtype == PVFS_TYPE_SYMLINK ? "symlink" : | |
133 | "invalid/unknown"); | |
134 | ||
135 | switch (attrs->objtype) { | |
136 | case PVFS_TYPE_METAFILE: | |
137 | pvfs2_set_inode_flags(inode, attrs); | |
138 | if (attrs->mask & PVFS_ATTR_SYS_SIZE) { | |
139 | inode_size = (loff_t) attrs->size; | |
140 | rounded_up_size = | |
141 | (inode_size + (4096 - (inode_size % 4096))); | |
142 | ||
143 | pvfs2_lock_inode(inode); | |
144 | inode->i_bytes = inode_size; | |
145 | inode->i_blocks = | |
146 | (unsigned long)(rounded_up_size / 512); | |
147 | pvfs2_unlock_inode(inode); | |
148 | ||
149 | /* | |
150 | * NOTE: make sure all the places we're called | |
151 | * from have the inode->i_sem lock. We're fine | |
152 | * in 99% of the cases since we're mostly | |
153 | * called from a lookup. | |
154 | */ | |
155 | inode->i_size = inode_size; | |
156 | } | |
157 | break; | |
158 | case PVFS_TYPE_SYMLINK: | |
159 | if (symname != NULL) { | |
160 | inode->i_size = (loff_t) strlen(symname); | |
161 | break; | |
162 | } | |
163 | /*FALLTHRU*/ | |
164 | default: | |
f0566532 MM |
165 | inode->i_size = PAGE_CACHE_SIZE; |
166 | ||
f7be4ee0 | 167 | pvfs2_lock_inode(inode); |
f0566532 | 168 | inode_set_bytes(inode, inode->i_size); |
f7be4ee0 | 169 | pvfs2_unlock_inode(inode); |
f7be4ee0 MM |
170 | break; |
171 | } | |
172 | ||
173 | inode->i_uid = make_kuid(&init_user_ns, attrs->owner); | |
174 | inode->i_gid = make_kgid(&init_user_ns, attrs->group); | |
175 | inode->i_atime.tv_sec = (time_t) attrs->atime; | |
176 | inode->i_mtime.tv_sec = (time_t) attrs->mtime; | |
177 | inode->i_ctime.tv_sec = (time_t) attrs->ctime; | |
178 | inode->i_atime.tv_nsec = 0; | |
179 | inode->i_mtime.tv_nsec = 0; | |
180 | inode->i_ctime.tv_nsec = 0; | |
181 | ||
182 | if (attrs->perms & PVFS_O_EXECUTE) | |
183 | perm_mode |= S_IXOTH; | |
184 | if (attrs->perms & PVFS_O_WRITE) | |
185 | perm_mode |= S_IWOTH; | |
186 | if (attrs->perms & PVFS_O_READ) | |
187 | perm_mode |= S_IROTH; | |
188 | ||
189 | if (attrs->perms & PVFS_G_EXECUTE) | |
190 | perm_mode |= S_IXGRP; | |
191 | if (attrs->perms & PVFS_G_WRITE) | |
192 | perm_mode |= S_IWGRP; | |
193 | if (attrs->perms & PVFS_G_READ) | |
194 | perm_mode |= S_IRGRP; | |
195 | ||
196 | if (attrs->perms & PVFS_U_EXECUTE) | |
197 | perm_mode |= S_IXUSR; | |
198 | if (attrs->perms & PVFS_U_WRITE) | |
199 | perm_mode |= S_IWUSR; | |
200 | if (attrs->perms & PVFS_U_READ) | |
201 | perm_mode |= S_IRUSR; | |
202 | ||
203 | if (attrs->perms & PVFS_G_SGID) | |
204 | perm_mode |= S_ISGID; | |
205 | if (attrs->perms & PVFS_U_SUID) | |
206 | perm_mode |= S_ISUID; | |
207 | ||
208 | inode->i_mode = perm_mode; | |
209 | ||
210 | if (is_root_handle(inode)) { | |
211 | /* special case: mark the root inode as sticky */ | |
212 | inode->i_mode |= S_ISVTX; | |
213 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
214 | "Marking inode %pU as sticky\n", | |
215 | get_khandle_from_ino(inode)); | |
216 | } | |
217 | ||
218 | switch (attrs->objtype) { | |
219 | case PVFS_TYPE_METAFILE: | |
220 | inode->i_mode |= S_IFREG; | |
221 | ret = 0; | |
222 | break; | |
223 | case PVFS_TYPE_DIRECTORY: | |
224 | inode->i_mode |= S_IFDIR; | |
225 | /* NOTE: we have no good way to keep nlink consistent | |
226 | * for directories across clients; keep constant at 1. | |
227 | * Why 1? If we go with 2, then find(1) gets confused | |
228 | * and won't work properly withouth the -noleaf option | |
229 | */ | |
230 | set_nlink(inode, 1); | |
231 | ret = 0; | |
232 | break; | |
233 | case PVFS_TYPE_SYMLINK: | |
234 | inode->i_mode |= S_IFLNK; | |
235 | ||
236 | /* copy link target to inode private data */ | |
237 | if (pvfs2_inode && symname) { | |
238 | strncpy(pvfs2_inode->link_target, | |
239 | symname, | |
240 | PVFS_NAME_MAX); | |
241 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
242 | "Copied attr link target %s\n", | |
243 | pvfs2_inode->link_target); | |
244 | } | |
245 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
246 | "symlink mode %o\n", | |
247 | inode->i_mode); | |
248 | ret = 0; | |
249 | break; | |
250 | default: | |
251 | gossip_err("pvfs2: copy_attributes_to_inode: got invalid attribute type %x\n", | |
252 | attrs->objtype); | |
253 | } | |
254 | ||
255 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
256 | "pvfs2: copy_attributes_to_inode: setting i_mode to %o, i_size to %lu\n", | |
257 | inode->i_mode, | |
258 | (unsigned long)i_size_read(inode)); | |
259 | ||
260 | return ret; | |
261 | } | |
262 | ||
263 | /* | |
264 | * NOTE: in kernel land, we never use the sys_attr->link_target for | |
265 | * anything, so don't bother copying it into the sys_attr object here. | |
266 | */ | |
267 | static inline int copy_attributes_from_inode(struct inode *inode, | |
268 | struct PVFS_sys_attr_s *attrs, | |
269 | struct iattr *iattr) | |
270 | { | |
271 | umode_t tmp_mode; | |
272 | ||
273 | if (!iattr || !inode || !attrs) { | |
274 | gossip_err("NULL iattr (%p), inode (%p), attrs (%p) " | |
275 | "in copy_attributes_from_inode!\n", | |
276 | iattr, | |
277 | inode, | |
278 | attrs); | |
279 | return -EINVAL; | |
280 | } | |
281 | /* | |
282 | * We need to be careful to only copy the attributes out of the | |
283 | * iattr object that we know are valid. | |
284 | */ | |
285 | attrs->mask = 0; | |
286 | if (iattr->ia_valid & ATTR_UID) { | |
287 | attrs->owner = from_kuid(current_user_ns(), iattr->ia_uid); | |
288 | attrs->mask |= PVFS_ATTR_SYS_UID; | |
289 | gossip_debug(GOSSIP_UTILS_DEBUG, "(UID) %d\n", attrs->owner); | |
290 | } | |
291 | if (iattr->ia_valid & ATTR_GID) { | |
292 | attrs->group = from_kgid(current_user_ns(), iattr->ia_gid); | |
293 | attrs->mask |= PVFS_ATTR_SYS_GID; | |
294 | gossip_debug(GOSSIP_UTILS_DEBUG, "(GID) %d\n", attrs->group); | |
295 | } | |
296 | ||
297 | if (iattr->ia_valid & ATTR_ATIME) { | |
298 | attrs->mask |= PVFS_ATTR_SYS_ATIME; | |
299 | if (iattr->ia_valid & ATTR_ATIME_SET) { | |
300 | attrs->atime = | |
5714156b | 301 | pvfs2_convert_time_field(&iattr->ia_atime); |
f7be4ee0 MM |
302 | attrs->mask |= PVFS_ATTR_SYS_ATIME_SET; |
303 | } | |
304 | } | |
305 | if (iattr->ia_valid & ATTR_MTIME) { | |
306 | attrs->mask |= PVFS_ATTR_SYS_MTIME; | |
307 | if (iattr->ia_valid & ATTR_MTIME_SET) { | |
308 | attrs->mtime = | |
5714156b | 309 | pvfs2_convert_time_field(&iattr->ia_mtime); |
f7be4ee0 MM |
310 | attrs->mask |= PVFS_ATTR_SYS_MTIME_SET; |
311 | } | |
312 | } | |
313 | if (iattr->ia_valid & ATTR_CTIME) | |
314 | attrs->mask |= PVFS_ATTR_SYS_CTIME; | |
315 | ||
316 | /* | |
317 | * PVFS2 cannot set size with a setattr operation. Probably not likely | |
318 | * to be requested through the VFS, but just in case, don't worry about | |
319 | * ATTR_SIZE | |
320 | */ | |
321 | ||
322 | if (iattr->ia_valid & ATTR_MODE) { | |
323 | tmp_mode = iattr->ia_mode; | |
324 | if (tmp_mode & (S_ISVTX)) { | |
325 | if (is_root_handle(inode)) { | |
326 | /* | |
327 | * allow sticky bit to be set on root (since | |
328 | * it shows up that way by default anyhow), | |
329 | * but don't show it to the server | |
330 | */ | |
331 | tmp_mode -= S_ISVTX; | |
332 | } else { | |
333 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
334 | "User attempted to set sticky bit on non-root directory; returning EINVAL.\n"); | |
335 | return -EINVAL; | |
336 | } | |
337 | } | |
338 | ||
339 | if (tmp_mode & (S_ISUID)) { | |
340 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
341 | "Attempting to set setuid bit (not supported); returning EINVAL.\n"); | |
342 | return -EINVAL; | |
343 | } | |
344 | ||
345 | attrs->perms = PVFS_util_translate_mode(tmp_mode); | |
346 | attrs->mask |= PVFS_ATTR_SYS_PERM; | |
347 | } | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
352 | /* | |
353 | * issues a pvfs2 getattr request and fills in the appropriate inode | |
354 | * attributes if successful. returns 0 on success; -errno otherwise | |
355 | */ | |
356 | int pvfs2_inode_getattr(struct inode *inode, __u32 getattr_mask) | |
357 | { | |
358 | struct pvfs2_inode_s *pvfs2_inode = PVFS2_I(inode); | |
359 | struct pvfs2_kernel_op_s *new_op; | |
360 | int ret = -EINVAL; | |
361 | ||
362 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
363 | "%s: called on inode %pU\n", | |
364 | __func__, | |
365 | get_khandle_from_ino(inode)); | |
366 | ||
367 | new_op = op_alloc(PVFS2_VFS_OP_GETATTR); | |
368 | if (!new_op) | |
369 | return -ENOMEM; | |
370 | new_op->upcall.req.getattr.refn = pvfs2_inode->refn; | |
371 | new_op->upcall.req.getattr.mask = getattr_mask; | |
372 | ||
373 | ret = service_operation(new_op, __func__, | |
374 | get_interruptible_flag(inode)); | |
375 | if (ret != 0) | |
376 | goto out; | |
377 | ||
378 | if (copy_attributes_to_inode(inode, | |
379 | &new_op->downcall.resp.getattr.attributes, | |
380 | new_op->downcall.resp.getattr.link_target)) { | |
381 | gossip_err("%s: failed to copy attributes\n", __func__); | |
382 | ret = -ENOENT; | |
383 | goto out; | |
384 | } | |
385 | ||
386 | /* | |
387 | * Store blksize in pvfs2 specific part of inode structure; we are | |
388 | * only going to use this to report to stat to make sure it doesn't | |
389 | * perturb any inode related code paths. | |
390 | */ | |
391 | if (new_op->downcall.resp.getattr.attributes.objtype == | |
392 | PVFS_TYPE_METAFILE) { | |
393 | pvfs2_inode->blksize = | |
394 | new_op->downcall.resp.getattr.attributes.blksize; | |
395 | } else { | |
396 | /* mimic behavior of generic_fillattr() for other types. */ | |
397 | pvfs2_inode->blksize = (1 << inode->i_blkbits); | |
398 | ||
399 | } | |
400 | ||
401 | out: | |
402 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
403 | "Getattr on handle %pU, " | |
404 | "fsid %d\n (inode ct = %d) returned %d\n", | |
405 | &pvfs2_inode->refn.khandle, | |
406 | pvfs2_inode->refn.fs_id, | |
407 | (int)atomic_read(&inode->i_count), | |
408 | ret); | |
409 | ||
410 | op_release(new_op); | |
411 | return ret; | |
412 | } | |
413 | ||
414 | /* | |
415 | * issues a pvfs2 setattr request to make sure the new attribute values | |
416 | * take effect if successful. returns 0 on success; -errno otherwise | |
417 | */ | |
418 | int pvfs2_inode_setattr(struct inode *inode, struct iattr *iattr) | |
419 | { | |
420 | struct pvfs2_inode_s *pvfs2_inode = PVFS2_I(inode); | |
421 | struct pvfs2_kernel_op_s *new_op; | |
422 | int ret; | |
423 | ||
424 | new_op = op_alloc(PVFS2_VFS_OP_SETATTR); | |
425 | if (!new_op) | |
426 | return -ENOMEM; | |
427 | ||
428 | new_op->upcall.req.setattr.refn = pvfs2_inode->refn; | |
429 | ret = copy_attributes_from_inode(inode, | |
430 | &new_op->upcall.req.setattr.attributes, | |
431 | iattr); | |
432 | if (ret < 0) { | |
433 | op_release(new_op); | |
434 | return ret; | |
435 | } | |
436 | ||
437 | ret = service_operation(new_op, __func__, | |
438 | get_interruptible_flag(inode)); | |
439 | ||
440 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
441 | "pvfs2_inode_setattr: returning %d\n", | |
442 | ret); | |
443 | ||
444 | /* when request is serviced properly, free req op struct */ | |
445 | op_release(new_op); | |
446 | ||
447 | /* | |
448 | * successful setattr should clear the atime, mtime and | |
449 | * ctime flags. | |
450 | */ | |
451 | if (ret == 0) { | |
452 | ClearAtimeFlag(pvfs2_inode); | |
453 | ClearMtimeFlag(pvfs2_inode); | |
454 | ClearCtimeFlag(pvfs2_inode); | |
455 | ClearModeFlag(pvfs2_inode); | |
456 | } | |
457 | ||
458 | return ret; | |
459 | } | |
460 | ||
461 | int pvfs2_flush_inode(struct inode *inode) | |
462 | { | |
463 | /* | |
464 | * If it is a dirty inode, this function gets called. | |
465 | * Gather all the information that needs to be setattr'ed | |
466 | * Right now, this will only be used for mode, atime, mtime | |
467 | * and/or ctime. | |
468 | */ | |
469 | struct iattr wbattr; | |
470 | int ret; | |
471 | int mtime_flag; | |
472 | int ctime_flag; | |
473 | int atime_flag; | |
474 | int mode_flag; | |
475 | struct pvfs2_inode_s *pvfs2_inode = PVFS2_I(inode); | |
476 | ||
477 | memset(&wbattr, 0, sizeof(wbattr)); | |
478 | ||
479 | /* | |
480 | * check inode flags up front, and clear them if they are set. This | |
481 | * will prevent multiple processes from all trying to flush the same | |
482 | * inode if they call close() simultaneously | |
483 | */ | |
484 | mtime_flag = MtimeFlag(pvfs2_inode); | |
485 | ClearMtimeFlag(pvfs2_inode); | |
486 | ctime_flag = CtimeFlag(pvfs2_inode); | |
487 | ClearCtimeFlag(pvfs2_inode); | |
488 | atime_flag = AtimeFlag(pvfs2_inode); | |
489 | ClearAtimeFlag(pvfs2_inode); | |
490 | mode_flag = ModeFlag(pvfs2_inode); | |
491 | ClearModeFlag(pvfs2_inode); | |
492 | ||
493 | /* -- Lazy atime,mtime and ctime update -- | |
494 | * Note: all times are dictated by server in the new scheme | |
495 | * and not by the clients | |
496 | * | |
497 | * Also mode updates are being handled now.. | |
498 | */ | |
499 | ||
500 | if (mtime_flag) | |
501 | wbattr.ia_valid |= ATTR_MTIME; | |
502 | if (ctime_flag) | |
503 | wbattr.ia_valid |= ATTR_CTIME; | |
504 | if (atime_flag) | |
505 | wbattr.ia_valid |= ATTR_ATIME; | |
506 | ||
507 | if (mode_flag) { | |
508 | wbattr.ia_mode = inode->i_mode; | |
509 | wbattr.ia_valid |= ATTR_MODE; | |
510 | } | |
511 | ||
512 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
513 | "*********** pvfs2_flush_inode: %pU " | |
514 | "(ia_valid %d)\n", | |
515 | get_khandle_from_ino(inode), | |
516 | wbattr.ia_valid); | |
517 | if (wbattr.ia_valid == 0) { | |
518 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
519 | "pvfs2_flush_inode skipping setattr()\n"); | |
520 | return 0; | |
521 | } | |
522 | ||
523 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
524 | "pvfs2_flush_inode (%pU) writing mode %o\n", | |
525 | get_khandle_from_ino(inode), | |
526 | inode->i_mode); | |
527 | ||
528 | ret = pvfs2_inode_setattr(inode, &wbattr); | |
529 | ||
530 | return ret; | |
531 | } | |
532 | ||
533 | int pvfs2_unmount_sb(struct super_block *sb) | |
534 | { | |
535 | int ret = -EINVAL; | |
536 | struct pvfs2_kernel_op_s *new_op = NULL; | |
537 | ||
538 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
539 | "pvfs2_unmount_sb called on sb %p\n", | |
540 | sb); | |
541 | ||
542 | new_op = op_alloc(PVFS2_VFS_OP_FS_UMOUNT); | |
543 | if (!new_op) | |
544 | return -ENOMEM; | |
545 | new_op->upcall.req.fs_umount.id = PVFS2_SB(sb)->id; | |
546 | new_op->upcall.req.fs_umount.fs_id = PVFS2_SB(sb)->fs_id; | |
547 | strncpy(new_op->upcall.req.fs_umount.pvfs2_config_server, | |
548 | PVFS2_SB(sb)->devname, | |
549 | PVFS_MAX_SERVER_ADDR_LEN); | |
550 | ||
551 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
552 | "Attempting PVFS2 Unmount via host %s\n", | |
553 | new_op->upcall.req.fs_umount.pvfs2_config_server); | |
554 | ||
555 | ret = service_operation(new_op, "pvfs2_fs_umount", 0); | |
556 | ||
557 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
558 | "pvfs2_unmount: got return value of %d\n", ret); | |
559 | if (ret) | |
560 | sb = ERR_PTR(ret); | |
561 | else | |
562 | PVFS2_SB(sb)->mount_pending = 1; | |
563 | ||
564 | op_release(new_op); | |
565 | return ret; | |
566 | } | |
567 | ||
568 | /* | |
569 | * NOTE: on successful cancellation, be sure to return -EINTR, as | |
570 | * that's the return value the caller expects | |
571 | */ | |
572 | int pvfs2_cancel_op_in_progress(__u64 tag) | |
573 | { | |
574 | int ret = -EINVAL; | |
575 | struct pvfs2_kernel_op_s *new_op = NULL; | |
576 | ||
577 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
578 | "pvfs2_cancel_op_in_progress called on tag %llu\n", | |
579 | llu(tag)); | |
580 | ||
581 | new_op = op_alloc(PVFS2_VFS_OP_CANCEL); | |
582 | if (!new_op) | |
583 | return -ENOMEM; | |
584 | new_op->upcall.req.cancel.op_tag = tag; | |
585 | ||
586 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
587 | "Attempting PVFS2 operation cancellation of tag %llu\n", | |
588 | llu(new_op->upcall.req.cancel.op_tag)); | |
589 | ||
590 | ret = service_operation(new_op, "pvfs2_cancel", PVFS2_OP_CANCELLATION); | |
591 | ||
592 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
593 | "pvfs2_cancel_op_in_progress: got return value of %d\n", | |
594 | ret); | |
595 | ||
596 | op_release(new_op); | |
597 | return ret; | |
598 | } | |
599 | ||
600 | void pvfs2_op_initialize(struct pvfs2_kernel_op_s *op) | |
601 | { | |
602 | if (op) { | |
603 | spin_lock(&op->lock); | |
604 | op->io_completed = 0; | |
605 | ||
606 | op->upcall.type = PVFS2_VFS_OP_INVALID; | |
607 | op->downcall.type = PVFS2_VFS_OP_INVALID; | |
608 | op->downcall.status = -1; | |
609 | ||
610 | op->op_state = OP_VFS_STATE_UNKNOWN; | |
611 | op->tag = 0; | |
612 | spin_unlock(&op->lock); | |
613 | } | |
614 | } | |
615 | ||
616 | void pvfs2_make_bad_inode(struct inode *inode) | |
617 | { | |
618 | if (is_root_handle(inode)) { | |
619 | /* | |
620 | * if this occurs, the pvfs2-client-core was killed but we | |
621 | * can't afford to lose the inode operations and such | |
622 | * associated with the root handle in any case. | |
623 | */ | |
624 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
625 | "*** NOT making bad root inode %pU\n", | |
626 | get_khandle_from_ino(inode)); | |
627 | } else { | |
628 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
629 | "*** making bad inode %pU\n", | |
630 | get_khandle_from_ino(inode)); | |
631 | make_bad_inode(inode); | |
632 | } | |
633 | } | |
634 | ||
8c3905ad MM |
635 | /* Block all blockable signals... */ |
636 | void block_signals(sigset_t *orig_sigset) | |
f7be4ee0 | 637 | { |
8c3905ad MM |
638 | sigset_t mask; |
639 | ||
640 | /* | |
641 | * Initialize all entries in the signal set to the | |
642 | * inverse of the given mask. | |
643 | */ | |
644 | siginitsetinv(&mask, sigmask(SIGKILL)); | |
645 | ||
646 | /* Block 'em Danno... */ | |
647 | sigprocmask(SIG_BLOCK, &mask, orig_sigset); | |
f7be4ee0 MM |
648 | } |
649 | ||
8c3905ad MM |
650 | /* set the signal mask to the given template... */ |
651 | void set_signals(sigset_t *sigset) | |
f7be4ee0 | 652 | { |
8c3905ad | 653 | sigprocmask(SIG_SETMASK, sigset, NULL); |
f7be4ee0 MM |
654 | } |
655 | ||
54804949 MM |
656 | /* |
657 | * The following is a very dirty hack that is now a permanent part of the | |
658 | * PVFS2 protocol. See protocol.h for more error definitions. | |
659 | */ | |
894ac432 MB |
660 | |
661 | /* The order matches include/pvfs2-types.h in the OrangeFS source. */ | |
662 | static int PINT_errno_mapping[] = { | |
54804949 MM |
663 | 0, EPERM, ENOENT, EINTR, EIO, ENXIO, EBADF, EAGAIN, ENOMEM, |
664 | EFAULT, EBUSY, EEXIST, ENODEV, ENOTDIR, EISDIR, EINVAL, EMFILE, | |
665 | EFBIG, ENOSPC, EROFS, EMLINK, EPIPE, EDEADLK, ENAMETOOLONG, | |
666 | ENOLCK, ENOSYS, ENOTEMPTY, ELOOP, EWOULDBLOCK, ENOMSG, EUNATCH, | |
667 | EBADR, EDEADLOCK, ENODATA, ETIME, ENONET, EREMOTE, ECOMM, | |
668 | EPROTO, EBADMSG, EOVERFLOW, ERESTART, EMSGSIZE, EPROTOTYPE, | |
669 | ENOPROTOOPT, EPROTONOSUPPORT, EOPNOTSUPP, EADDRINUSE, | |
670 | EADDRNOTAVAIL, ENETDOWN, ENETUNREACH, ENETRESET, ENOBUFS, | |
671 | ETIMEDOUT, ECONNREFUSED, EHOSTDOWN, EHOSTUNREACH, EALREADY, | |
672 | EACCES, ECONNRESET, ERANGE | |
894ac432 | 673 | }; |
f7be4ee0 MM |
674 | |
675 | int pvfs2_normalize_to_errno(__s32 error_code) | |
676 | { | |
54804949 MM |
677 | __u32 i; |
678 | ||
894ac432 MB |
679 | /* Success */ |
680 | if (error_code == 0) { | |
681 | return 0; | |
54804949 MM |
682 | /* |
683 | * This shouldn't ever happen. If it does it should be fixed on the | |
684 | * server. | |
685 | */ | |
894ac432 | 686 | } else if (error_code > 0) { |
f7be4ee0 MM |
687 | gossip_err("pvfs2: error status receieved.\n"); |
688 | gossip_err("pvfs2: assuming error code is inverted.\n"); | |
689 | error_code = -error_code; | |
690 | } | |
691 | ||
54804949 MM |
692 | /* |
693 | * XXX: This is very bad since error codes from PVFS2 may not be | |
694 | * suitable for return into userspace. | |
695 | */ | |
894ac432 | 696 | |
54804949 MM |
697 | /* |
698 | * Convert PVFS2 error values into errno values suitable for return | |
699 | * from the kernel. | |
700 | */ | |
894ac432 MB |
701 | if ((-error_code) & PVFS_NON_ERRNO_ERROR_BIT) { |
702 | if (((-error_code) & | |
703 | (PVFS_ERROR_NUMBER_BITS|PVFS_NON_ERRNO_ERROR_BIT| | |
704 | PVFS_ERROR_BIT)) == PVFS_ECANCEL) { | |
f7be4ee0 MM |
705 | /* |
706 | * cancellation error codes generally correspond to | |
707 | * a timeout from the client's perspective | |
708 | */ | |
709 | error_code = -ETIMEDOUT; | |
710 | } else { | |
711 | /* assume a default error code */ | |
54804949 | 712 | gossip_err("pvfs2: warning: got error code without errno equivalent: %d.\n", error_code); |
f7be4ee0 MM |
713 | error_code = -EINVAL; |
714 | } | |
894ac432 MB |
715 | |
716 | /* Convert PVFS2 encoded errno values into regular errno values. */ | |
717 | } else if ((-error_code) & PVFS_ERROR_BIT) { | |
894ac432 | 718 | i = (-error_code) & ~(PVFS_ERROR_BIT|PVFS_ERROR_CLASS_BITS); |
54804949 | 719 | if (i < sizeof(PINT_errno_mapping)/sizeof(*PINT_errno_mapping)) |
894ac432 MB |
720 | error_code = -PINT_errno_mapping[i]; |
721 | else | |
722 | error_code = -EINVAL; | |
723 | ||
54804949 MM |
724 | /* |
725 | * Only PVFS2 protocol error codes should ever come here. Otherwise | |
726 | * there is a bug somewhere. | |
727 | */ | |
894ac432 | 728 | } else { |
54804949 | 729 | gossip_err("pvfs2: pvfs2_normalize_to_errno: got error code which is not from PVFS2.\n"); |
f7be4ee0 MM |
730 | } |
731 | return error_code; | |
732 | } | |
733 | ||
734 | #define NUM_MODES 11 | |
735 | __s32 PVFS_util_translate_mode(int mode) | |
736 | { | |
737 | int ret = 0; | |
738 | int i = 0; | |
739 | static int modes[NUM_MODES] = { | |
740 | S_IXOTH, S_IWOTH, S_IROTH, | |
741 | S_IXGRP, S_IWGRP, S_IRGRP, | |
742 | S_IXUSR, S_IWUSR, S_IRUSR, | |
743 | S_ISGID, S_ISUID | |
744 | }; | |
745 | static int pvfs2_modes[NUM_MODES] = { | |
746 | PVFS_O_EXECUTE, PVFS_O_WRITE, PVFS_O_READ, | |
747 | PVFS_G_EXECUTE, PVFS_G_WRITE, PVFS_G_READ, | |
748 | PVFS_U_EXECUTE, PVFS_U_WRITE, PVFS_U_READ, | |
749 | PVFS_G_SGID, PVFS_U_SUID | |
750 | }; | |
751 | ||
752 | for (i = 0; i < NUM_MODES; i++) | |
753 | if (mode & modes[i]) | |
754 | ret |= pvfs2_modes[i]; | |
755 | ||
756 | return ret; | |
757 | } | |
758 | #undef NUM_MODES | |
759 | ||
760 | /* | |
761 | * After obtaining a string representation of the client's debug | |
762 | * keywords and their associated masks, this function is called to build an | |
763 | * array of these values. | |
764 | */ | |
765 | int orangefs_prepare_cdm_array(char *debug_array_string) | |
766 | { | |
767 | int i; | |
768 | int rc = -EINVAL; | |
769 | char *cds_head = NULL; | |
770 | char *cds_delimiter = NULL; | |
771 | int keyword_len = 0; | |
772 | ||
773 | gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__); | |
774 | ||
775 | /* | |
776 | * figure out how many elements the cdm_array needs. | |
777 | */ | |
778 | for (i = 0; i < strlen(debug_array_string); i++) | |
779 | if (debug_array_string[i] == '\n') | |
780 | cdm_element_count++; | |
781 | ||
782 | if (!cdm_element_count) { | |
783 | pr_info("No elements in client debug array string!\n"); | |
784 | goto out; | |
785 | } | |
786 | ||
787 | cdm_array = | |
788 | kzalloc(cdm_element_count * sizeof(struct client_debug_mask), | |
789 | GFP_KERNEL); | |
790 | if (!cdm_array) { | |
791 | pr_info("malloc failed for cdm_array!\n"); | |
792 | rc = -ENOMEM; | |
793 | goto out; | |
794 | } | |
795 | ||
796 | cds_head = debug_array_string; | |
797 | ||
798 | for (i = 0; i < cdm_element_count; i++) { | |
799 | cds_delimiter = strchr(cds_head, '\n'); | |
800 | *cds_delimiter = '\0'; | |
801 | ||
802 | keyword_len = strcspn(cds_head, " "); | |
803 | ||
804 | cdm_array[i].keyword = kzalloc(keyword_len + 1, GFP_KERNEL); | |
805 | if (!cdm_array[i].keyword) { | |
806 | rc = -ENOMEM; | |
807 | goto out; | |
808 | } | |
809 | ||
810 | sscanf(cds_head, | |
811 | "%s %llx %llx", | |
812 | cdm_array[i].keyword, | |
813 | (unsigned long long *)&(cdm_array[i].mask1), | |
814 | (unsigned long long *)&(cdm_array[i].mask2)); | |
815 | ||
816 | if (!strcmp(cdm_array[i].keyword, PVFS2_VERBOSE)) | |
817 | client_verbose_index = i; | |
818 | ||
819 | if (!strcmp(cdm_array[i].keyword, PVFS2_ALL)) | |
820 | client_all_index = i; | |
821 | ||
822 | cds_head = cds_delimiter + 1; | |
823 | } | |
824 | ||
825 | rc = cdm_element_count; | |
826 | ||
827 | gossip_debug(GOSSIP_UTILS_DEBUG, "%s: rc:%d:\n", __func__, rc); | |
828 | ||
829 | out: | |
830 | ||
831 | return rc; | |
832 | ||
833 | } | |
834 | ||
835 | /* | |
836 | * /sys/kernel/debug/orangefs/debug-help can be catted to | |
837 | * see all the available kernel and client debug keywords. | |
838 | * | |
839 | * When the kernel boots, we have no idea what keywords the | |
840 | * client supports, nor their associated masks. | |
841 | * | |
842 | * We pass through this function once at boot and stamp a | |
843 | * boilerplate "we don't know" message for the client in the | |
844 | * debug-help file. We pass through here again when the client | |
845 | * starts and then we can fill out the debug-help file fully. | |
846 | * | |
847 | * The client might be restarted any number of times between | |
848 | * reboots, we only build the debug-help file the first time. | |
849 | */ | |
850 | int orangefs_prepare_debugfs_help_string(int at_boot) | |
851 | { | |
852 | int rc = -EINVAL; | |
853 | int i; | |
854 | int byte_count = 0; | |
855 | char *client_title = "Client Debug Keywords:\n"; | |
856 | char *kernel_title = "Kernel Debug Keywords:\n"; | |
857 | ||
858 | gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__); | |
859 | ||
860 | if (at_boot) { | |
861 | byte_count += strlen(HELP_STRING_UNINITIALIZED); | |
862 | client_title = HELP_STRING_UNINITIALIZED; | |
863 | } else { | |
864 | /* | |
865 | * fill the client keyword/mask array and remember | |
866 | * how many elements there were. | |
867 | */ | |
868 | cdm_element_count = | |
869 | orangefs_prepare_cdm_array(client_debug_array_string); | |
870 | if (cdm_element_count <= 0) | |
871 | goto out; | |
872 | ||
873 | /* Count the bytes destined for debug_help_string. */ | |
874 | byte_count += strlen(client_title); | |
875 | ||
876 | for (i = 0; i < cdm_element_count; i++) { | |
877 | byte_count += strlen(cdm_array[i].keyword + 2); | |
878 | if (byte_count >= DEBUG_HELP_STRING_SIZE) { | |
879 | pr_info("%s: overflow 1!\n", __func__); | |
880 | goto out; | |
881 | } | |
882 | } | |
883 | ||
884 | gossip_debug(GOSSIP_UTILS_DEBUG, | |
885 | "%s: cdm_element_count:%d:\n", | |
886 | __func__, | |
887 | cdm_element_count); | |
888 | } | |
889 | ||
890 | byte_count += strlen(kernel_title); | |
891 | for (i = 0; i < num_kmod_keyword_mask_map; i++) { | |
892 | byte_count += | |
893 | strlen(s_kmod_keyword_mask_map[i].keyword + 2); | |
894 | if (byte_count >= DEBUG_HELP_STRING_SIZE) { | |
895 | pr_info("%s: overflow 2!\n", __func__); | |
896 | goto out; | |
897 | } | |
898 | } | |
899 | ||
900 | /* build debug_help_string. */ | |
901 | debug_help_string = kzalloc(DEBUG_HELP_STRING_SIZE, GFP_KERNEL); | |
902 | if (!debug_help_string) { | |
903 | rc = -ENOMEM; | |
904 | goto out; | |
905 | } | |
906 | ||
907 | strcat(debug_help_string, client_title); | |
908 | ||
909 | if (!at_boot) { | |
910 | for (i = 0; i < cdm_element_count; i++) { | |
911 | strcat(debug_help_string, "\t"); | |
912 | strcat(debug_help_string, cdm_array[i].keyword); | |
913 | strcat(debug_help_string, "\n"); | |
914 | } | |
915 | } | |
916 | ||
917 | strcat(debug_help_string, "\n"); | |
918 | strcat(debug_help_string, kernel_title); | |
919 | ||
920 | for (i = 0; i < num_kmod_keyword_mask_map; i++) { | |
921 | strcat(debug_help_string, "\t"); | |
922 | strcat(debug_help_string, s_kmod_keyword_mask_map[i].keyword); | |
923 | strcat(debug_help_string, "\n"); | |
924 | } | |
925 | ||
926 | rc = 0; | |
927 | ||
928 | out: | |
929 | ||
930 | return rc; | |
931 | ||
932 | } | |
933 | ||
934 | /* | |
935 | * kernel = type 0 | |
936 | * client = type 1 | |
937 | */ | |
938 | void debug_mask_to_string(void *mask, int type) | |
939 | { | |
940 | int i; | |
941 | int len = 0; | |
942 | char *debug_string; | |
943 | int element_count = 0; | |
944 | ||
945 | gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__); | |
946 | ||
947 | if (type) { | |
948 | debug_string = client_debug_string; | |
949 | element_count = cdm_element_count; | |
950 | } else { | |
951 | debug_string = kernel_debug_string; | |
952 | element_count = num_kmod_keyword_mask_map; | |
953 | } | |
954 | ||
955 | memset(debug_string, 0, PVFS2_MAX_DEBUG_STRING_LEN); | |
956 | ||
957 | /* | |
958 | * Some keywords, like "all" or "verbose", are amalgams of | |
959 | * numerous other keywords. Make a special check for those | |
960 | * before grinding through the whole mask only to find out | |
961 | * later... | |
962 | */ | |
963 | if (check_amalgam_keyword(mask, type)) | |
964 | goto out; | |
965 | ||
966 | /* Build the debug string. */ | |
967 | for (i = 0; i < element_count; i++) | |
968 | if (type) | |
969 | do_c_string(mask, i); | |
970 | else | |
971 | do_k_string(mask, i); | |
972 | ||
973 | len = strlen(debug_string); | |
974 | ||
975 | if ((len) && (type)) | |
976 | client_debug_string[len - 1] = '\0'; | |
977 | else if (len) | |
978 | kernel_debug_string[len - 1] = '\0'; | |
979 | else if (type) | |
980 | strcpy(client_debug_string, "none"); | |
981 | else | |
982 | strcpy(kernel_debug_string, "none"); | |
983 | ||
984 | out: | |
985 | gossip_debug(GOSSIP_UTILS_DEBUG, "%s: string:%s:\n", __func__, debug_string); | |
986 | ||
987 | return; | |
988 | ||
989 | } | |
990 | ||
991 | void do_k_string(void *k_mask, int index) | |
992 | { | |
993 | __u64 *mask = (__u64 *) k_mask; | |
994 | ||
995 | if (keyword_is_amalgam((char *) s_kmod_keyword_mask_map[index].keyword)) | |
54804949 | 996 | goto out; |
f7be4ee0 MM |
997 | |
998 | if (*mask & s_kmod_keyword_mask_map[index].mask_val) { | |
999 | if ((strlen(kernel_debug_string) + | |
1000 | strlen(s_kmod_keyword_mask_map[index].keyword)) | |
1001 | < PVFS2_MAX_DEBUG_STRING_LEN - 1) { | |
1002 | strcat(kernel_debug_string, | |
1003 | s_kmod_keyword_mask_map[index].keyword); | |
1004 | strcat(kernel_debug_string, ","); | |
1005 | } else { | |
1006 | gossip_err("%s: overflow!\n", __func__); | |
1007 | strcpy(kernel_debug_string, PVFS2_ALL); | |
1008 | goto out; | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | out: | |
1013 | ||
1014 | return; | |
1015 | } | |
1016 | ||
1017 | void do_c_string(void *c_mask, int index) | |
1018 | { | |
1019 | struct client_debug_mask *mask = (struct client_debug_mask *) c_mask; | |
1020 | ||
1021 | if (keyword_is_amalgam(cdm_array[index].keyword)) | |
1022 | goto out; | |
1023 | ||
1024 | if ((mask->mask1 & cdm_array[index].mask1) || | |
1025 | (mask->mask2 & cdm_array[index].mask2)) { | |
1026 | if ((strlen(client_debug_string) + | |
1027 | strlen(cdm_array[index].keyword) + 1) | |
1028 | < PVFS2_MAX_DEBUG_STRING_LEN - 2) { | |
1029 | strcat(client_debug_string, | |
1030 | cdm_array[index].keyword); | |
1031 | strcat(client_debug_string, ","); | |
1032 | } else { | |
1033 | gossip_err("%s: overflow!\n", __func__); | |
1034 | strcpy(client_debug_string, PVFS2_ALL); | |
1035 | goto out; | |
1036 | } | |
1037 | } | |
1038 | out: | |
1039 | return; | |
1040 | } | |
1041 | ||
1042 | int keyword_is_amalgam(char *keyword) | |
1043 | { | |
1044 | int rc = 0; | |
1045 | ||
1046 | if ((!strcmp(keyword, PVFS2_ALL)) || (!strcmp(keyword, PVFS2_VERBOSE))) | |
1047 | rc = 1; | |
1048 | ||
1049 | return rc; | |
1050 | } | |
1051 | ||
1052 | /* | |
1053 | * kernel = type 0 | |
1054 | * client = type 1 | |
1055 | * | |
1056 | * return 1 if we found an amalgam. | |
1057 | */ | |
1058 | int check_amalgam_keyword(void *mask, int type) | |
1059 | { | |
1060 | __u64 *k_mask; | |
1061 | struct client_debug_mask *c_mask; | |
1062 | int k_all_index = num_kmod_keyword_mask_map - 1; | |
1063 | int rc = 0; | |
1064 | ||
1065 | if (type) { | |
1066 | c_mask = (struct client_debug_mask *) mask; | |
1067 | ||
1068 | if ((c_mask->mask1 == cdm_array[client_all_index].mask1) && | |
1069 | (c_mask->mask2 == cdm_array[client_all_index].mask2)) { | |
1070 | strcpy(client_debug_string, PVFS2_ALL); | |
1071 | rc = 1; | |
1072 | goto out; | |
1073 | } | |
1074 | ||
1075 | if ((c_mask->mask1 == cdm_array[client_verbose_index].mask1) && | |
1076 | (c_mask->mask2 == cdm_array[client_verbose_index].mask2)) { | |
1077 | strcpy(client_debug_string, PVFS2_VERBOSE); | |
1078 | rc = 1; | |
1079 | goto out; | |
1080 | } | |
1081 | ||
1082 | } else { | |
1083 | k_mask = (__u64 *) mask; | |
1084 | ||
1085 | if (*k_mask >= s_kmod_keyword_mask_map[k_all_index].mask_val) { | |
1086 | strcpy(kernel_debug_string, PVFS2_ALL); | |
1087 | rc = 1; | |
1088 | goto out; | |
1089 | } | |
1090 | } | |
1091 | ||
1092 | out: | |
1093 | ||
1094 | return rc; | |
1095 | } | |
1096 | ||
1097 | /* | |
1098 | * kernel = type 0 | |
1099 | * client = type 1 | |
1100 | */ | |
1101 | void debug_string_to_mask(char *debug_string, void *mask, int type) | |
1102 | { | |
1103 | char *unchecked_keyword; | |
1104 | int i; | |
1105 | char *strsep_fodder = kstrdup(debug_string, GFP_KERNEL); | |
eeaa3d44 | 1106 | char *original_pointer; |
f7be4ee0 MM |
1107 | int element_count = 0; |
1108 | struct client_debug_mask *c_mask; | |
1109 | __u64 *k_mask; | |
1110 | ||
1111 | gossip_debug(GOSSIP_UTILS_DEBUG, "%s: start\n", __func__); | |
1112 | ||
1113 | if (type) { | |
1114 | c_mask = (struct client_debug_mask *)mask; | |
1115 | element_count = cdm_element_count; | |
1116 | } else { | |
1117 | k_mask = (__u64 *)mask; | |
1118 | *k_mask = 0; | |
1119 | element_count = num_kmod_keyword_mask_map; | |
1120 | } | |
1121 | ||
eeaa3d44 | 1122 | original_pointer = strsep_fodder; |
f7be4ee0 MM |
1123 | while ((unchecked_keyword = strsep(&strsep_fodder, ","))) |
1124 | if (strlen(unchecked_keyword)) { | |
1125 | for (i = 0; i < element_count; i++) | |
1126 | if (type) | |
1127 | do_c_mask(i, | |
1128 | unchecked_keyword, | |
1129 | &c_mask); | |
1130 | else | |
1131 | do_k_mask(i, | |
1132 | unchecked_keyword, | |
1133 | &k_mask); | |
1134 | } | |
1135 | ||
eeaa3d44 | 1136 | kfree(original_pointer); |
f7be4ee0 MM |
1137 | } |
1138 | ||
1139 | void do_c_mask(int i, | |
1140 | char *unchecked_keyword, | |
1141 | struct client_debug_mask **sane_mask) | |
1142 | { | |
1143 | ||
1144 | if (!strcmp(cdm_array[i].keyword, unchecked_keyword)) { | |
1145 | (**sane_mask).mask1 = (**sane_mask).mask1 | cdm_array[i].mask1; | |
1146 | (**sane_mask).mask2 = (**sane_mask).mask2 | cdm_array[i].mask2; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | void do_k_mask(int i, char *unchecked_keyword, __u64 **sane_mask) | |
1151 | { | |
1152 | ||
1153 | if (!strcmp(s_kmod_keyword_mask_map[i].keyword, unchecked_keyword)) | |
1154 | **sane_mask = (**sane_mask) | | |
1155 | s_kmod_keyword_mask_map[i].mask_val; | |
1156 | } |