Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#include <linux/kernel.h>
2#include <linux/types.h>
3#include <linux/spinlock_types.h>
4#include <linux/slab.h>
5#include <linux/ioctl.h>
6
7extern struct client_debug_mask *cdm_array;
8extern char *debug_help_string;
9extern int help_string_initialized;
10extern struct dentry *debug_dir;
11extern struct dentry *help_file_dentry;
12extern struct dentry *client_debug_dentry;
13extern const struct file_operations debug_help_fops;
14extern int client_all_index;
15extern int client_verbose_index;
16extern int cdm_element_count;
17#define DEBUG_HELP_STRING_SIZE 4096
18#define HELP_STRING_UNINITIALIZED \
19 "Client Debug Keywords are unknown until the first time\n" \
20 "the client is started after boot.\n"
21#define ORANGEFS_KMOD_DEBUG_HELP_FILE "debug-help"
22#define ORANGEFS_KMOD_DEBUG_FILE "kernel-debug"
23#define ORANGEFS_CLIENT_DEBUG_FILE "client-debug"
24#define ORANGEFS_VERBOSE "verbose"
25#define ORANGEFS_ALL "all"
26
27/* pvfs2-config.h ***********************************************************/
28#define ORANGEFS_VERSION_MAJOR 2
29#define ORANGEFS_VERSION_MINOR 9
30#define ORANGEFS_VERSION_SUB 0
31
32/* khandle stuff ***********************************************************/
33
34/*
35 * The 2.9 core will put 64 bit handles in here like this:
36 * 1234 0000 0000 5678
37 * The 3.0 and beyond cores will put 128 bit handles in here like this:
38 * 1234 5678 90AB CDEF
39 * The kernel module will always use the first four bytes and
40 * the last four bytes as an inum.
41 */
42struct orangefs_khandle {
43 unsigned char u[16];
44} __aligned(8);
45
46/*
47 * kernel version of an object ref.
48 */
49struct orangefs_object_kref {
50 struct orangefs_khandle khandle;
51 __s32 fs_id;
52 __s32 __pad1;
53};
54
55/*
56 * compare 2 khandles assumes little endian thus from large address to
57 * small address
58 */
59static inline int ORANGEFS_khandle_cmp(const struct orangefs_khandle *kh1,
60 const struct orangefs_khandle *kh2)
61{
62 int i;
63
64 for (i = 15; i >= 0; i--) {
65 if (kh1->u[i] > kh2->u[i])
66 return 1;
67 if (kh1->u[i] < kh2->u[i])
68 return -1;
69 }
70
71 return 0;
72}
73
74static inline void ORANGEFS_khandle_to(const struct orangefs_khandle *kh,
75 void *p, int size)
76{
77
78 memcpy(p, kh->u, 16);
79 memset(p + 16, 0, size - 16);
80
81}
82
83static inline void ORANGEFS_khandle_from(struct orangefs_khandle *kh,
84 void *p, int size)
85{
86 memset(kh, 0, 16);
87 memcpy(kh->u, p, 16);
88
89}
90
91/* pvfs2-types.h ************************************************************/
92typedef __u32 ORANGEFS_uid;
93typedef __u32 ORANGEFS_gid;
94typedef __s32 ORANGEFS_fs_id;
95typedef __u32 ORANGEFS_permissions;
96typedef __u64 ORANGEFS_time;
97typedef __s64 ORANGEFS_size;
98typedef __u64 ORANGEFS_flags;
99typedef __u64 ORANGEFS_ds_position;
100typedef __s32 ORANGEFS_error;
101typedef __s64 ORANGEFS_offset;
102
103#define ORANGEFS_SUPER_MAGIC 0x20030528
104
105/*
106 * ORANGEFS error codes are a signed 32-bit integer. Error codes are negative, but
107 * the sign is stripped before decoding.
108 */
109
110/* Bit 31 is not used since it is the sign. */
111
112/*
113 * Bit 30 specifies that this is a ORANGEFS error. A ORANGEFS error is either an
114 * encoded errno value or a ORANGEFS protocol error.
115 */
116#define ORANGEFS_ERROR_BIT (1 << 30)
117
118/*
119 * Bit 29 specifies that this is a ORANGEFS protocol error and not an encoded
120 * errno value.
121 */
122#define ORANGEFS_NON_ERRNO_ERROR_BIT (1 << 29)
123
124/*
125 * Bits 9, 8, and 7 specify the error class, which encodes the section of
126 * server code the error originated in for logging purposes. It is not used
127 * in the kernel except to be masked out.
128 */
129#define ORANGEFS_ERROR_CLASS_BITS 0x380
130
131/* Bits 6 - 0 are reserved for the actual error code. */
132#define ORANGEFS_ERROR_NUMBER_BITS 0x7f
133
134/* Encoded errno values decoded by PINT_errno_mapping in orangefs-utils.c. */
135
136/* Our own ORANGEFS protocol error codes. */
137#define ORANGEFS_ECANCEL (1|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
138#define ORANGEFS_EDEVINIT (2|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
139#define ORANGEFS_EDETAIL (3|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
140#define ORANGEFS_EHOSTNTFD (4|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
141#define ORANGEFS_EADDRNTFD (5|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
142#define ORANGEFS_ENORECVR (6|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
143#define ORANGEFS_ETRYAGAIN (7|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
144#define ORANGEFS_ENOTPVFS (8|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
145#define ORANGEFS_ESECURITY (9|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
146
147/* permission bits */
148#define ORANGEFS_O_EXECUTE (1 << 0)
149#define ORANGEFS_O_WRITE (1 << 1)
150#define ORANGEFS_O_READ (1 << 2)
151#define ORANGEFS_G_EXECUTE (1 << 3)
152#define ORANGEFS_G_WRITE (1 << 4)
153#define ORANGEFS_G_READ (1 << 5)
154#define ORANGEFS_U_EXECUTE (1 << 6)
155#define ORANGEFS_U_WRITE (1 << 7)
156#define ORANGEFS_U_READ (1 << 8)
157/* no ORANGEFS_U_VTX (sticky bit) */
158#define ORANGEFS_G_SGID (1 << 10)
159#define ORANGEFS_U_SUID (1 << 11)
160
161/* definition taken from stdint.h */
162#define INT32_MAX (2147483647)
163#define ORANGEFS_ITERATE_START (INT32_MAX - 1)
164#define ORANGEFS_ITERATE_END (INT32_MAX - 2)
165#define ORANGEFS_ITERATE_NEXT (INT32_MAX - 3)
166#define ORANGEFS_READDIR_START ORANGEFS_ITERATE_START
167#define ORANGEFS_READDIR_END ORANGEFS_ITERATE_END
168#define ORANGEFS_IMMUTABLE_FL FS_IMMUTABLE_FL
169#define ORANGEFS_APPEND_FL FS_APPEND_FL
170#define ORANGEFS_NOATIME_FL FS_NOATIME_FL
171#define ORANGEFS_MIRROR_FL 0x01000000ULL
172#define ORANGEFS_O_EXECUTE (1 << 0)
173#define ORANGEFS_FS_ID_NULL ((__s32)0)
174#define ORANGEFS_ATTR_SYS_UID (1 << 0)
175#define ORANGEFS_ATTR_SYS_GID (1 << 1)
176#define ORANGEFS_ATTR_SYS_PERM (1 << 2)
177#define ORANGEFS_ATTR_SYS_ATIME (1 << 3)
178#define ORANGEFS_ATTR_SYS_CTIME (1 << 4)
179#define ORANGEFS_ATTR_SYS_MTIME (1 << 5)
180#define ORANGEFS_ATTR_SYS_TYPE (1 << 6)
181#define ORANGEFS_ATTR_SYS_ATIME_SET (1 << 7)
182#define ORANGEFS_ATTR_SYS_MTIME_SET (1 << 8)
183#define ORANGEFS_ATTR_SYS_SIZE (1 << 20)
184#define ORANGEFS_ATTR_SYS_LNK_TARGET (1 << 24)
185#define ORANGEFS_ATTR_SYS_DFILE_COUNT (1 << 25)
186#define ORANGEFS_ATTR_SYS_DIRENT_COUNT (1 << 26)
187#define ORANGEFS_ATTR_SYS_BLKSIZE (1 << 28)
188#define ORANGEFS_ATTR_SYS_MIRROR_COPIES_COUNT (1 << 29)
189#define ORANGEFS_ATTR_SYS_COMMON_ALL \
190 (ORANGEFS_ATTR_SYS_UID | \
191 ORANGEFS_ATTR_SYS_GID | \
192 ORANGEFS_ATTR_SYS_PERM | \
193 ORANGEFS_ATTR_SYS_ATIME | \
194 ORANGEFS_ATTR_SYS_CTIME | \
195 ORANGEFS_ATTR_SYS_MTIME | \
196 ORANGEFS_ATTR_SYS_TYPE)
197
198#define ORANGEFS_ATTR_SYS_ALL_SETABLE \
199(ORANGEFS_ATTR_SYS_COMMON_ALL-ORANGEFS_ATTR_SYS_TYPE)
200
201#define ORANGEFS_ATTR_SYS_ALL_NOHINT \
202 (ORANGEFS_ATTR_SYS_COMMON_ALL | \
203 ORANGEFS_ATTR_SYS_SIZE | \
204 ORANGEFS_ATTR_SYS_LNK_TARGET | \
205 ORANGEFS_ATTR_SYS_DFILE_COUNT | \
206 ORANGEFS_ATTR_SYS_MIRROR_COPIES_COUNT | \
207 ORANGEFS_ATTR_SYS_DIRENT_COUNT | \
208 ORANGEFS_ATTR_SYS_BLKSIZE)
209
210#define ORANGEFS_XATTR_REPLACE 0x2
211#define ORANGEFS_XATTR_CREATE 0x1
212#define ORANGEFS_MAX_SERVER_ADDR_LEN 256
213#define ORANGEFS_NAME_MAX 256
214/*
215 * max extended attribute name len as imposed by the VFS and exploited for the
216 * upcall request types.
217 * NOTE: Please retain them as multiples of 8 even if you wish to change them
218 * This is *NECESSARY* for supporting 32 bit user-space binaries on a 64-bit
219 * kernel. Due to implementation within DBPF, this really needs to be
220 * ORANGEFS_NAME_MAX, which it was the same value as, but no reason to let it
221 * break if that changes in the future.
222 */
223#define ORANGEFS_MAX_XATTR_NAMELEN ORANGEFS_NAME_MAX /* Not the same as
224 * XATTR_NAME_MAX defined
225 * by <linux/xattr.h>
226 */
227#define ORANGEFS_MAX_XATTR_VALUELEN 8192 /* Not the same as XATTR_SIZE_MAX
228 * defined by <linux/xattr.h>
229 */
230#define ORANGEFS_MAX_XATTR_LISTLEN 16 /* Not the same as XATTR_LIST_MAX
231 * defined by <linux/xattr.h>
232 */
233/*
234 * ORANGEFS I/O operation types, used in both system and server interfaces.
235 */
236enum ORANGEFS_io_type {
237 ORANGEFS_IO_READ = 1,
238 ORANGEFS_IO_WRITE = 2
239};
240
241/*
242 * If this enum is modified the server parameters related to the precreate pool
243 * batch and low threshold sizes may need to be modified to reflect this
244 * change.
245 */
246enum orangefs_ds_type {
247 ORANGEFS_TYPE_NONE = 0,
248 ORANGEFS_TYPE_METAFILE = (1 << 0),
249 ORANGEFS_TYPE_DATAFILE = (1 << 1),
250 ORANGEFS_TYPE_DIRECTORY = (1 << 2),
251 ORANGEFS_TYPE_SYMLINK = (1 << 3),
252 ORANGEFS_TYPE_DIRDATA = (1 << 4),
253 ORANGEFS_TYPE_INTERNAL = (1 << 5) /* for the server's private use */
254};
255
256/*
257 * ORANGEFS_certificate simply stores a buffer with the buffer size.
258 * The buffer can be converted to an OpenSSL X509 struct for use.
259 */
260struct ORANGEFS_certificate {
261 __u32 buf_size;
262 unsigned char *buf;
263};
264
265/*
266 * A credential identifies a user and is signed by the client/user
267 * private key.
268 */
269struct ORANGEFS_credential {
270 __u32 userid; /* user id */
271 __u32 num_groups; /* length of group_array */
272 __u32 *group_array; /* groups for which the user is a member */
273 char *issuer; /* alias of the issuing server */
274 __u64 timeout; /* seconds after epoch to time out */
275 __u32 sig_size; /* length of the signature in bytes */
276 unsigned char *signature; /* digital signature */
277 struct ORANGEFS_certificate certificate; /* user certificate buffer */
278};
279#define extra_size_ORANGEFS_credential (ORANGEFS_REQ_LIMIT_GROUPS * \
280 sizeof(__u32) + \
281 ORANGEFS_REQ_LIMIT_ISSUER + \
282 ORANGEFS_REQ_LIMIT_SIGNATURE + \
283 extra_size_ORANGEFS_certificate)
284
285/* This structure is used by the VFS-client interaction alone */
286struct ORANGEFS_keyval_pair {
287 char key[ORANGEFS_MAX_XATTR_NAMELEN];
288 __s32 key_sz; /* __s32 for portable, fixed-size structures */
289 __s32 val_sz;
290 char val[ORANGEFS_MAX_XATTR_VALUELEN];
291};
292
293/* pvfs2-sysint.h ***********************************************************/
294/* Describes attributes for a file, directory, or symlink. */
295struct ORANGEFS_sys_attr_s {
296 __u32 owner;
297 __u32 group;
298 __u32 perms;
299 __u64 atime;
300 __u64 mtime;
301 __u64 ctime;
302 __s64 size;
303
304 /* NOTE: caller must free if valid */
305 char *link_target;
306
307 /* Changed to __s32 so that size of structure does not change */
308 __s32 dfile_count;
309
310 /* Changed to __s32 so that size of structure does not change */
311 __s32 distr_dir_servers_initial;
312
313 /* Changed to __s32 so that size of structure does not change */
314 __s32 distr_dir_servers_max;
315
316 /* Changed to __s32 so that size of structure does not change */
317 __s32 distr_dir_split_size;
318
319 __u32 mirror_copies_count;
320
321 /* NOTE: caller must free if valid */
322 char *dist_name;
323
324 /* NOTE: caller must free if valid */
325 char *dist_params;
326
327 __s64 dirent_count;
328 enum orangefs_ds_type objtype;
329 __u64 flags;
330 __u32 mask;
331 __s64 blksize;
332};
333
334#define ORANGEFS_LOOKUP_LINK_NO_FOLLOW 0
335
336/* pint-dev.h ***************************************************************/
337
338/* parameter structure used in ORANGEFS_DEV_DEBUG ioctl command */
339struct dev_mask_info_s {
340 enum {
341 KERNEL_MASK,
342 CLIENT_MASK,
343 } mask_type;
344 __u64 mask_value;
345};
346
347struct dev_mask2_info_s {
348 __u64 mask1_value;
349 __u64 mask2_value;
350};
351
352/* pvfs2-util.h *************************************************************/
353__s32 ORANGEFS_util_translate_mode(int mode);
354
355/* pvfs2-debug.h ************************************************************/
356#include "orangefs-debug.h"
357
358/* pvfs2-internal.h *********************************************************/
359#define llu(x) (unsigned long long)(x)
360#define lld(x) (long long)(x)
361
362/* pint-dev-shared.h ********************************************************/
363#define ORANGEFS_DEV_MAGIC 'k'
364
365#define ORANGEFS_READDIR_DEFAULT_DESC_COUNT 5
366
367#define DEV_GET_MAGIC 0x1
368#define DEV_GET_MAX_UPSIZE 0x2
369#define DEV_GET_MAX_DOWNSIZE 0x3
370#define DEV_MAP 0x4
371#define DEV_REMOUNT_ALL 0x5
372#define DEV_DEBUG 0x6
373#define DEV_UPSTREAM 0x7
374#define DEV_CLIENT_MASK 0x8
375#define DEV_CLIENT_STRING 0x9
376#define DEV_MAX_NR 0xa
377
378/* supported ioctls, codes are with respect to user-space */
379enum {
380 ORANGEFS_DEV_GET_MAGIC = _IOW(ORANGEFS_DEV_MAGIC, DEV_GET_MAGIC, __s32),
381 ORANGEFS_DEV_GET_MAX_UPSIZE =
382 _IOW(ORANGEFS_DEV_MAGIC, DEV_GET_MAX_UPSIZE, __s32),
383 ORANGEFS_DEV_GET_MAX_DOWNSIZE =
384 _IOW(ORANGEFS_DEV_MAGIC, DEV_GET_MAX_DOWNSIZE, __s32),
385 ORANGEFS_DEV_MAP = _IO(ORANGEFS_DEV_MAGIC, DEV_MAP),
386 ORANGEFS_DEV_REMOUNT_ALL = _IO(ORANGEFS_DEV_MAGIC, DEV_REMOUNT_ALL),
387 ORANGEFS_DEV_DEBUG = _IOR(ORANGEFS_DEV_MAGIC, DEV_DEBUG, __s32),
388 ORANGEFS_DEV_UPSTREAM = _IOW(ORANGEFS_DEV_MAGIC, DEV_UPSTREAM, int),
389 ORANGEFS_DEV_CLIENT_MASK = _IOW(ORANGEFS_DEV_MAGIC,
390 DEV_CLIENT_MASK,
391 struct dev_mask2_info_s),
392 ORANGEFS_DEV_CLIENT_STRING = _IOW(ORANGEFS_DEV_MAGIC,
393 DEV_CLIENT_STRING,
394 char *),
395 ORANGEFS_DEV_MAXNR = DEV_MAX_NR,
396};
397
398/*
399 * version number for use in communicating between kernel space and user
400 * space. Zero signifies the upstream version of the kernel module.
401 */
402#define ORANGEFS_KERNEL_PROTO_VERSION 0
403#define ORANGEFS_MINIMUM_USERSPACE_VERSION 20903
404
405/*
406 * describes memory regions to map in the ORANGEFS_DEV_MAP ioctl.
407 * NOTE: See devorangefs-req.c for 32 bit compat structure.
408 * Since this structure has a variable-sized layout that is different
409 * on 32 and 64 bit platforms, we need to normalize to a 64 bit layout
410 * on such systems before servicing ioctl calls from user-space binaries
411 * that may be 32 bit!
412 */
413struct ORANGEFS_dev_map_desc {
414 void *ptr;
415 __s32 total_size;
416 __s32 size;
417 __s32 count;
418};
419
420/* gossip.h *****************************************************************/
421
422#ifdef GOSSIP_DISABLE_DEBUG
423#define gossip_debug(mask, fmt, ...) \
424do { \
425 if (0) \
426 printk(KERN_DEBUG fmt, ##__VA_ARGS__); \
427} while (0)
428#else
429extern __u64 gossip_debug_mask;
430extern struct client_debug_mask client_debug_mask;
431
432/* try to avoid function call overhead by checking masks in macro */
433#define gossip_debug(mask, fmt, ...) \
434do { \
435 if (gossip_debug_mask & (mask)) \
436 printk(KERN_DEBUG fmt, ##__VA_ARGS__); \
437} while (0)
438#endif /* GOSSIP_DISABLE_DEBUG */
439
440/* do file and line number printouts w/ the GNU preprocessor */
441#define gossip_ldebug(mask, fmt, ...) \
442 gossip_debug(mask, "%s: " fmt, __func__, ##__VA_ARGS__)
443
444#define gossip_err pr_err
445#define gossip_lerr(fmt, ...) \
446 gossip_err("%s line %d: " fmt, \
447 __FILE__, __LINE__, ##__VA_ARGS__)