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authorLinus Torvalds <torvalds@linux-foundation.org>2009-07-09 23:40:58 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-09 23:40:58 -0400
commitc2cc49a2f8a479dde96a599646d30b6cc9dbed78 (patch)
tree9dcd16bcb4ab3aeba1952d5fc12e9b0fdd2d62d6
parente864561c12bc743789eab76242b8314d394daa52 (diff)
parentd0c280d26de9422c9c943f8f486b9830cd9bea70 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: when ATTR_READONLY is set, only clear write bits on non-directories cifs: remove cifsInodeInfo->inUse counter cifs: convert cifs_get_inode_info and non-posix readdir to use cifs_iget [CIFS] update cifs version number cifs: add and use CIFSSMBUnixSetFileInfo for setattr calls cifs: make a separate function for filling out FILE_UNIX_BASIC_INFO cifs: rename CIFSSMBUnixSetInfo to CIFSSMBUnixSetPathInfo cifs: add pid of initiating process to spnego upcall info cifs: fix regression with O_EXCL creates and optimize away lookup cifs: add new cifs_iget function and convert unix codepath to use it
Diffstat
-rw-r--r--fs/cifs/CHANGES6
-rw-r--r--fs/cifs/cifs_spnego.c9
-rw-r--r--fs/cifs/cifsacl.c26
-rw-r--r--fs/cifs/cifsfs.c1
-rw-r--r--fs/cifs/cifsfs.h15
-rw-r--r--fs/cifs/cifsglob.h28
-rw-r--r--fs/cifs/cifspdu.h14
-rw-r--r--fs/cifs/cifsproto.h21
-rw-r--r--fs/cifs/cifssmb.c143
-rw-r--r--fs/cifs/dir.c46
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/cifs/inode.c762
-rw-r--r--fs/cifs/readdir.c505
13 files changed, 686 insertions, 896 deletions
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 3a9b7a58a51d..92888aa90749 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -5,7 +5,11 @@ client generated ones by default (mount option "serverino" turned
5on by default if server supports it). Add forceuid and forcegid 5on by default if server supports it). Add forceuid and forcegid
6mount options (so that when negotiating unix extensions specifying 6mount options (so that when negotiating unix extensions specifying
7which uid mounted does not immediately force the server's reported 7which uid mounted does not immediately force the server's reported
8uids to be overridden). Add support for scope moutn parm. 8uids to be overridden). Add support for scope mount parm. Improve
9hard link detection to use same inode for both. Do not set
10read-only dos attribute on directories (for chmod) since Windows
11explorer special cases this attribute bit for directories for
12a different purpose.
9 13
10Version 1.58 14Version 1.58
11------------ 15------------
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 4a4581cb2b5e..051caecf7d67 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -86,6 +86,9 @@ struct key_type cifs_spnego_key_type = {
86/* strlen of ";user=" */ 86/* strlen of ";user=" */
87#define USER_KEY_LEN 6 87#define USER_KEY_LEN 6
88 88
89/* strlen of ";pid=0x" */
90#define PID_KEY_LEN 7
91
89/* get a key struct with a SPNEGO security blob, suitable for session setup */ 92/* get a key struct with a SPNEGO security blob, suitable for session setup */
90struct key * 93struct key *
91cifs_get_spnego_key(struct cifsSesInfo *sesInfo) 94cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
@@ -103,7 +106,8 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
103 IP_KEY_LEN + INET6_ADDRSTRLEN + 106 IP_KEY_LEN + INET6_ADDRSTRLEN +
104 MAX_MECH_STR_LEN + 107 MAX_MECH_STR_LEN +
105 UID_KEY_LEN + (sizeof(uid_t) * 2) + 108 UID_KEY_LEN + (sizeof(uid_t) * 2) +
106 USER_KEY_LEN + strlen(sesInfo->userName) + 1; 109 USER_KEY_LEN + strlen(sesInfo->userName) +
110 PID_KEY_LEN + (sizeof(pid_t) * 2) + 1;
107 111
108 spnego_key = ERR_PTR(-ENOMEM); 112 spnego_key = ERR_PTR(-ENOMEM);
109 description = kzalloc(desc_len, GFP_KERNEL); 113 description = kzalloc(desc_len, GFP_KERNEL);
@@ -141,6 +145,9 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
141 dp = description + strlen(description); 145 dp = description + strlen(description);
142 sprintf(dp, ";user=%s", sesInfo->userName); 146 sprintf(dp, ";user=%s", sesInfo->userName);
143 147
148 dp = description + strlen(description);
149 sprintf(dp, ";pid=0x%x", current->pid);
150
144 cFYI(1, ("key description = %s", description)); 151 cFYI(1, ("key description = %s", description));
145 spnego_key = request_key(&cifs_spnego_key_type, description, ""); 152 spnego_key = request_key(&cifs_spnego_key_type, description, "");
146 153
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 1403b5d86a73..6941c22398a6 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -327,7 +327,7 @@ static void dump_ace(struct cifs_ace *pace, char *end_of_acl)
327 327
328static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl, 328static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
329 struct cifs_sid *pownersid, struct cifs_sid *pgrpsid, 329 struct cifs_sid *pownersid, struct cifs_sid *pgrpsid,
330 struct inode *inode) 330 struct cifs_fattr *fattr)
331{ 331{
332 int i; 332 int i;
333 int num_aces = 0; 333 int num_aces = 0;
@@ -340,7 +340,7 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
340 if (!pdacl) { 340 if (!pdacl) {
341 /* no DACL in the security descriptor, set 341 /* no DACL in the security descriptor, set
342 all the permissions for user/group/other */ 342 all the permissions for user/group/other */
343 inode->i_mode |= S_IRWXUGO; 343 fattr->cf_mode |= S_IRWXUGO;
344 return; 344 return;
345 } 345 }
346 346
@@ -357,7 +357,7 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
357 /* reset rwx permissions for user/group/other. 357 /* reset rwx permissions for user/group/other.
358 Also, if num_aces is 0 i.e. DACL has no ACEs, 358 Also, if num_aces is 0 i.e. DACL has no ACEs,
359 user/group/other have no permissions */ 359 user/group/other have no permissions */
360 inode->i_mode &= ~(S_IRWXUGO); 360 fattr->cf_mode &= ~(S_IRWXUGO);
361 361
362 acl_base = (char *)pdacl; 362 acl_base = (char *)pdacl;
363 acl_size = sizeof(struct cifs_acl); 363 acl_size = sizeof(struct cifs_acl);
@@ -379,17 +379,17 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl,
379 if (compare_sids(&(ppace[i]->sid), pownersid)) 379 if (compare_sids(&(ppace[i]->sid), pownersid))
380 access_flags_to_mode(ppace[i]->access_req, 380 access_flags_to_mode(ppace[i]->access_req,
381 ppace[i]->type, 381 ppace[i]->type,
382 &(inode->i_mode), 382 &fattr->cf_mode,
383 &user_mask); 383 &user_mask);
384 if (compare_sids(&(ppace[i]->sid), pgrpsid)) 384 if (compare_sids(&(ppace[i]->sid), pgrpsid))
385 access_flags_to_mode(ppace[i]->access_req, 385 access_flags_to_mode(ppace[i]->access_req,
386 ppace[i]->type, 386 ppace[i]->type,
387 &(inode->i_mode), 387 &fattr->cf_mode,
388 &group_mask); 388 &group_mask);
389 if (compare_sids(&(ppace[i]->sid), &sid_everyone)) 389 if (compare_sids(&(ppace[i]->sid), &sid_everyone))
390 access_flags_to_mode(ppace[i]->access_req, 390 access_flags_to_mode(ppace[i]->access_req,
391 ppace[i]->type, 391 ppace[i]->type,
392 &(inode->i_mode), 392 &fattr->cf_mode,
393 &other_mask); 393 &other_mask);
394 394
395/* memcpy((void *)(&(cifscred->aces[i])), 395/* memcpy((void *)(&(cifscred->aces[i])),
@@ -464,7 +464,7 @@ static int parse_sid(struct cifs_sid *psid, char *end_of_acl)
464 464
465/* Convert CIFS ACL to POSIX form */ 465/* Convert CIFS ACL to POSIX form */
466static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len, 466static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len,
467 struct inode *inode) 467 struct cifs_fattr *fattr)
468{ 468{
469 int rc; 469 int rc;
470 struct cifs_sid *owner_sid_ptr, *group_sid_ptr; 470 struct cifs_sid *owner_sid_ptr, *group_sid_ptr;
@@ -472,7 +472,7 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len,
472 char *end_of_acl = ((char *)pntsd) + acl_len; 472 char *end_of_acl = ((char *)pntsd) + acl_len;
473 __u32 dacloffset; 473 __u32 dacloffset;
474 474
475 if ((inode == NULL) || (pntsd == NULL)) 475 if (pntsd == NULL)
476 return -EIO; 476 return -EIO;
477 477
478 owner_sid_ptr = (struct cifs_sid *)((char *)pntsd + 478 owner_sid_ptr = (struct cifs_sid *)((char *)pntsd +
@@ -497,7 +497,7 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len,
497 497
498 if (dacloffset) 498 if (dacloffset)
499 parse_dacl(dacl_ptr, end_of_acl, owner_sid_ptr, 499 parse_dacl(dacl_ptr, end_of_acl, owner_sid_ptr,
500 group_sid_ptr, inode); 500 group_sid_ptr, fattr);
501 else 501 else
502 cFYI(1, ("no ACL")); /* BB grant all or default perms? */ 502 cFYI(1, ("no ACL")); /* BB grant all or default perms? */
503 503
@@ -508,7 +508,6 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len,
508 memcpy((void *)(&(cifscred->gsid)), (void *)group_sid_ptr, 508 memcpy((void *)(&(cifscred->gsid)), (void *)group_sid_ptr,
509 sizeof(struct cifs_sid)); */ 509 sizeof(struct cifs_sid)); */
510 510
511
512 return 0; 511 return 0;
513} 512}
514 513
@@ -671,8 +670,9 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
671} 670}
672 671
673/* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */ 672/* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */
674void acl_to_uid_mode(struct cifs_sb_info *cifs_sb, struct inode *inode, 673void
675 const char *path, const __u16 *pfid) 674cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb, struct cifs_fattr *fattr,
675 struct inode *inode, const char *path, const __u16 *pfid)
676{ 676{
677 struct cifs_ntsd *pntsd = NULL; 677 struct cifs_ntsd *pntsd = NULL;
678 u32 acllen = 0; 678 u32 acllen = 0;
@@ -687,7 +687,7 @@ void acl_to_uid_mode(struct cifs_sb_info *cifs_sb, struct inode *inode,
687 687
688 /* if we can retrieve the ACL, now parse Access Control Entries, ACEs */ 688 /* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
689 if (pntsd) 689 if (pntsd)
690 rc = parse_sec_desc(pntsd, acllen, inode); 690 rc = parse_sec_desc(pntsd, acllen, fattr);
691 if (rc) 691 if (rc)
692 cFYI(1, ("parse sec desc failed rc = %d", rc)); 692 cFYI(1, ("parse sec desc failed rc = %d", rc));
693 693
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 9f669f982c4d..44f30504b82d 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -308,7 +308,6 @@ cifs_alloc_inode(struct super_block *sb)
308 if (!cifs_inode) 308 if (!cifs_inode)
309 return NULL; 309 return NULL;
310 cifs_inode->cifsAttrs = 0x20; /* default */ 310 cifs_inode->cifsAttrs = 0x20; /* default */
311 atomic_set(&cifs_inode->inUse, 0);
312 cifs_inode->time = 0; 311 cifs_inode->time = 0;
313 cifs_inode->write_behind_rc = 0; 312 cifs_inode->write_behind_rc = 0;
314 /* Until the file is open and we have gotten oplock 313 /* Until the file is open and we have gotten oplock
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 9570a0e8023f..6c170948300d 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -24,6 +24,19 @@
24 24
25#define ROOT_I 2 25#define ROOT_I 2
26 26
27/*
28 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
29 * so that it will fit.
30 */
31static inline ino_t
32cifs_uniqueid_to_ino_t(u64 fileid)
33{
34 ino_t ino = (ino_t) fileid;
35 if (sizeof(ino_t) < sizeof(u64))
36 ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
37 return ino;
38}
39
27extern struct file_system_type cifs_fs_type; 40extern struct file_system_type cifs_fs_type;
28extern const struct address_space_operations cifs_addr_ops; 41extern const struct address_space_operations cifs_addr_ops;
29extern const struct address_space_operations cifs_addr_ops_smallbuf; 42extern const struct address_space_operations cifs_addr_ops_smallbuf;
@@ -100,5 +113,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
100extern const struct export_operations cifs_export_ops; 113extern const struct export_operations cifs_export_ops;
101#endif /* EXPERIMENTAL */ 114#endif /* EXPERIMENTAL */
102 115
103#define CIFS_VERSION "1.59" 116#define CIFS_VERSION "1.60"
104#endif /* _CIFSFS_H */ 117#endif /* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index e1225e6ded2f..63f6cdfa5638 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -364,13 +364,13 @@ struct cifsInodeInfo {
364 struct list_head openFileList; 364 struct list_head openFileList;
365 int write_behind_rc; 365 int write_behind_rc;
366 __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */ 366 __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
367 atomic_t inUse; /* num concurrent users (local openers cifs) of file*/
368 unsigned long time; /* jiffies of last update/check of inode */ 367 unsigned long time; /* jiffies of last update/check of inode */
369 bool clientCanCacheRead:1; /* read oplock */ 368 bool clientCanCacheRead:1; /* read oplock */
370 bool clientCanCacheAll:1; /* read and writebehind oplock */ 369 bool clientCanCacheAll:1; /* read and writebehind oplock */
371 bool oplockPending:1; 370 bool oplockPending:1;
372 bool delete_pending:1; /* DELETE_ON_CLOSE is set */ 371 bool delete_pending:1; /* DELETE_ON_CLOSE is set */
373 u64 server_eof; /* current file size on server */ 372 u64 server_eof; /* current file size on server */
373 u64 uniqueid; /* server inode number */
374 struct inode vfs_inode; 374 struct inode vfs_inode;
375}; 375};
376 376
@@ -472,6 +472,32 @@ struct dfs_info3_param {
472 char *node_name; 472 char *node_name;
473}; 473};
474 474
475/*
476 * common struct for holding inode info when searching for or updating an
477 * inode with new info
478 */
479
480#define CIFS_FATTR_DFS_REFERRAL 0x1
481#define CIFS_FATTR_DELETE_PENDING 0x2
482#define CIFS_FATTR_NEED_REVAL 0x4
483
484struct cifs_fattr {
485 u32 cf_flags;
486 u32 cf_cifsattrs;
487 u64 cf_uniqueid;
488 u64 cf_eof;
489 u64 cf_bytes;
490 uid_t cf_uid;
491 gid_t cf_gid;
492 umode_t cf_mode;
493 dev_t cf_rdev;
494 unsigned int cf_nlink;
495 unsigned int cf_dtype;
496 struct timespec cf_atime;
497 struct timespec cf_mtime;
498 struct timespec cf_ctime;
499};
500
475static inline void free_dfs_info_param(struct dfs_info3_param *param) 501static inline void free_dfs_info_param(struct dfs_info3_param *param)
476{ 502{
477 if (param) { 503 if (param) {
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index a785f69dbc9f..2d07f890a842 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -2328,19 +2328,7 @@ struct file_attrib_tag {
2328typedef struct { 2328typedef struct {
2329 __le32 NextEntryOffset; 2329 __le32 NextEntryOffset;
2330 __u32 ResumeKey; /* as with FileIndex - no need to convert */ 2330 __u32 ResumeKey; /* as with FileIndex - no need to convert */
2331 __le64 EndOfFile; 2331 FILE_UNIX_BASIC_INFO basic;
2332 __le64 NumOfBytes;
2333 __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2334 __le64 LastAccessTime;
2335 __le64 LastModificationTime;
2336 __le64 Uid;
2337 __le64 Gid;
2338 __le32 Type;
2339 __le64 DevMajor;
2340 __le64 DevMinor;
2341 __le64 UniqueId;
2342 __le64 Permissions;
2343 __le64 Nlinks;
2344 char FileName[1]; 2332 char FileName[1];
2345} __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */ 2333} __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2346 2334
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index c419416a42ee..da8fbf565991 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -98,9 +98,13 @@ extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
98extern int cifs_posix_open(char *full_path, struct inode **pinode, 98extern int cifs_posix_open(char *full_path, struct inode **pinode,
99 struct super_block *sb, int mode, int oflags, 99 struct super_block *sb, int mode, int oflags,
100 int *poplock, __u16 *pnetfid, int xid); 100 int *poplock, __u16 *pnetfid, int xid);
101extern void posix_fill_in_inode(struct inode *tmp_inode, 101extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
102 FILE_UNIX_BASIC_INFO *pData, int isNewInode); 102 FILE_UNIX_BASIC_INFO *info,
103extern struct inode *cifs_new_inode(struct super_block *sb, __u64 *inum); 103 struct cifs_sb_info *cifs_sb);
104extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
105extern struct inode *cifs_iget(struct super_block *sb,
106 struct cifs_fattr *fattr);
107
104extern int cifs_get_inode_info(struct inode **pinode, 108extern int cifs_get_inode_info(struct inode **pinode,
105 const unsigned char *search_path, 109 const unsigned char *search_path,
106 FILE_ALL_INFO *pfile_info, 110 FILE_ALL_INFO *pfile_info,
@@ -108,8 +112,9 @@ extern int cifs_get_inode_info(struct inode **pinode,
108extern int cifs_get_inode_info_unix(struct inode **pinode, 112extern int cifs_get_inode_info_unix(struct inode **pinode,
109 const unsigned char *search_path, 113 const unsigned char *search_path,
110 struct super_block *sb, int xid); 114 struct super_block *sb, int xid);
111extern void acl_to_uid_mode(struct cifs_sb_info *cifs_sb, struct inode *inode, 115extern void cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
112 const char *path, const __u16 *pfid); 116 struct cifs_fattr *fattr, struct inode *inode,
117 const char *path, const __u16 *pfid);
113extern int mode_to_acl(struct inode *inode, const char *path, __u64); 118extern int mode_to_acl(struct inode *inode, const char *path, __u64);
114 119
115extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, 120extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
@@ -215,7 +220,11 @@ struct cifs_unix_set_info_args {
215 dev_t device; 220 dev_t device;
216}; 221};
217 222
218extern int CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *pTcon, 223extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon,
224 const struct cifs_unix_set_info_args *args,
225 u16 fid, u32 pid_of_opener);
226
227extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *pTcon,
219 char *fileName, 228 char *fileName,
220 const struct cifs_unix_set_info_args *args, 229 const struct cifs_unix_set_info_args *args,
221 const struct nls_table *nls_codepage, 230 const struct nls_table *nls_codepage,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 61007c627497..922f5fe2084c 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -5074,10 +5074,114 @@ SetAttrLgcyRetry:
5074} 5074}
5075#endif /* temporarily unneeded SetAttr legacy function */ 5075#endif /* temporarily unneeded SetAttr legacy function */
5076 5076
5077static void
5078cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset,
5079 const struct cifs_unix_set_info_args *args)
5080{
5081 u64 mode = args->mode;
5082
5083 /*
5084 * Samba server ignores set of file size to zero due to bugs in some
5085 * older clients, but we should be precise - we use SetFileSize to
5086 * set file size and do not want to truncate file size to zero
5087 * accidently as happened on one Samba server beta by putting
5088 * zero instead of -1 here
5089 */
5090 data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
5091 data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
5092 data_offset->LastStatusChange = cpu_to_le64(args->ctime);
5093 data_offset->LastAccessTime = cpu_to_le64(args->atime);
5094 data_offset->LastModificationTime = cpu_to_le64(args->mtime);
5095 data_offset->Uid = cpu_to_le64(args->uid);
5096 data_offset->Gid = cpu_to_le64(args->gid);
5097 /* better to leave device as zero when it is */
5098 data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
5099 data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
5100 data_offset->Permissions = cpu_to_le64(mode);
5101
5102 if (S_ISREG(mode))
5103 data_offset->Type = cpu_to_le32(UNIX_FILE);
5104 else if (S_ISDIR(mode))
5105 data_offset->Type = cpu_to_le32(UNIX_DIR);
5106 else if (S_ISLNK(mode))
5107 data_offset->Type = cpu_to_le32(UNIX_SYMLINK);
5108 else if (S_ISCHR(mode))
5109 data_offset->Type = cpu_to_le32(UNIX_CHARDEV);
5110 else if (S_ISBLK(mode))
5111 data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV);
5112 else if (S_ISFIFO(mode))
5113 data_offset->Type = cpu_to_le32(UNIX_FIFO);
5114 else if (S_ISSOCK(mode))
5115 data_offset->Type = cpu_to_le32(UNIX_SOCKET);
5116}
5117
5077int 5118int
5078CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName, 5119CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon,
5079 const struct cifs_unix_set_info_args *args, 5120 const struct cifs_unix_set_info_args *args,
5080 const struct nls_table *nls_codepage, int remap) 5121 u16 fid, u32 pid_of_opener)
5122{
5123 struct smb_com_transaction2_sfi_req *pSMB = NULL;
5124 FILE_UNIX_BASIC_INFO *data_offset;
5125 int rc = 0;
5126 u16 params, param_offset, offset, byte_count, count;
5127
5128 cFYI(1, ("Set Unix Info (via SetFileInfo)"));
5129 rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
5130
5131 if (rc)
5132 return rc;
5133
5134 pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
5135 pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
5136
5137 params = 6;
5138 pSMB->MaxSetupCount = 0;
5139 pSMB->Reserved = 0;
5140 pSMB->Flags = 0;
5141 pSMB->Timeout = 0;
5142 pSMB->Reserved2 = 0;
5143 param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
5144 offset = param_offset + params;
5145
5146 data_offset = (FILE_UNIX_BASIC_INFO *)
5147 ((char *)(&pSMB->hdr.Protocol) + offset);
5148 count = sizeof(FILE_UNIX_BASIC_INFO);
5149
5150 pSMB->MaxParameterCount = cpu_to_le16(2);
5151 /* BB find max SMB PDU from sess */
5152 pSMB->MaxDataCount = cpu_to_le16(1000);
5153 pSMB->SetupCount = 1;
5154 pSMB->Reserved3 = 0;
5155 pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
5156 byte_count = 3 /* pad */ + params + count;
5157 pSMB->DataCount = cpu_to_le16(count);
5158 pSMB->ParameterCount = cpu_to_le16(params);
5159 pSMB->TotalDataCount = pSMB->DataCount;
5160 pSMB->TotalParameterCount = pSMB->ParameterCount;
5161 pSMB->ParameterOffset = cpu_to_le16(param_offset);
5162 pSMB->DataOffset = cpu_to_le16(offset);
5163 pSMB->Fid = fid;
5164 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC);
5165 pSMB->Reserved4 = 0;
5166 pSMB->hdr.smb_buf_length += byte_count;
5167 pSMB->ByteCount = cpu_to_le16(byte_count);
5168
5169 cifs_fill_unix_set_info(data_offset, args);
5170
5171 rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
5172 if (rc)
5173 cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc));
5174
5175 /* Note: On -EAGAIN error only caller can retry on handle based calls
5176 since file handle passed in no longer valid */
5177
5178 return rc;
5179}
5180
5181int
5182CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
5183 const struct cifs_unix_set_info_args *args,
5184 const struct nls_table *nls_codepage, int remap)
5081{ 5185{
5082 TRANSACTION2_SPI_REQ *pSMB = NULL; 5186 TRANSACTION2_SPI_REQ *pSMB = NULL;
5083 TRANSACTION2_SPI_RSP *pSMBr = NULL; 5187 TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -5086,7 +5190,6 @@ CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
5086 int bytes_returned = 0; 5190 int bytes_returned = 0;
5087 FILE_UNIX_BASIC_INFO *data_offset; 5191 FILE_UNIX_BASIC_INFO *data_offset;
5088 __u16 params, param_offset, offset, count, byte_count; 5192 __u16 params, param_offset, offset, count, byte_count;
5089 __u64 mode = args->mode;
5090 5193
5091 cFYI(1, ("In SetUID/GID/Mode")); 5194 cFYI(1, ("In SetUID/GID/Mode"));
5092setPermsRetry: 5195setPermsRetry:
@@ -5137,38 +5240,8 @@ setPermsRetry:
5137 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); 5240 pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC);
5138 pSMB->Reserved4 = 0; 5241 pSMB->Reserved4 = 0;
5139 pSMB->hdr.smb_buf_length += byte_count; 5242 pSMB->hdr.smb_buf_length += byte_count;
5140 /* Samba server ignores set of file size to zero due to bugs in some
5141 older clients, but we should be precise - we use SetFileSize to
5142 set file size and do not want to truncate file size to zero
5143 accidently as happened on one Samba server beta by putting
5144 zero instead of -1 here */
5145 data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
5146 data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
5147 data_offset->LastStatusChange = cpu_to_le64(args->ctime);
5148 data_offset->LastAccessTime = cpu_to_le64(args->atime);
5149 data_offset->LastModificationTime = cpu_to_le64(args->mtime);
5150 data_offset->Uid = cpu_to_le64(args->uid);
5151 data_offset->Gid = cpu_to_le64(args->gid);
5152 /* better to leave device as zero when it is */
5153 data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
5154 data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
5155 data_offset->Permissions = cpu_to_le64(mode);
5156
5157 if (S_ISREG(mode))
5158 data_offset->Type = cpu_to_le32(UNIX_FILE);
5159 else if (S_ISDIR(mode))
5160 data_offset->Type = cpu_to_le32(UNIX_DIR);
5161 else if (S_ISLNK(mode))
5162 data_offset->Type = cpu_to_le32(UNIX_SYMLINK);
5163 else if (S_ISCHR(mode))
5164 data_offset->Type = cpu_to_le32(UNIX_CHARDEV);
5165 else if (S_ISBLK(mode))
5166 data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV);
5167 else if (S_ISFIFO(mode))
5168 data_offset->Type = cpu_to_le32(UNIX_FIFO);
5169 else if (S_ISSOCK(mode))
5170 data_offset->Type = cpu_to_le32(UNIX_SOCKET);
5171 5243
5244 cifs_fill_unix_set_info(data_offset, args);
5172 5245
5173 pSMB->ByteCount = cpu_to_le16(byte_count); 5246 pSMB->ByteCount = cpu_to_le16(byte_count);
5174 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, 5247 rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 7dc6b74f9def..4326ffd90fa9 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -188,6 +188,7 @@ int cifs_posix_open(char *full_path, struct inode **pinode,
188 FILE_UNIX_BASIC_INFO *presp_data; 188 FILE_UNIX_BASIC_INFO *presp_data;
189 __u32 posix_flags = 0; 189 __u32 posix_flags = 0;
190 struct cifs_sb_info *cifs_sb = CIFS_SB(sb); 190 struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
191 struct cifs_fattr fattr;
191 192
192 cFYI(1, ("posix open %s", full_path)); 193 cFYI(1, ("posix open %s", full_path));
193 194
@@ -236,22 +237,21 @@ int cifs_posix_open(char *full_path, struct inode **pinode,
236 if (presp_data->Type == cpu_to_le32(-1)) 237 if (presp_data->Type == cpu_to_le32(-1))
237 goto posix_open_ret; /* open ok, caller does qpathinfo */ 238 goto posix_open_ret; /* open ok, caller does qpathinfo */
238 239
239 /* get new inode and set it up */
240 if (!pinode) 240 if (!pinode)
241 goto posix_open_ret; /* caller does not need info */ 241 goto posix_open_ret; /* caller does not need info */
242 242
243 cifs_unix_basic_to_fattr(&fattr, presp_data, cifs_sb);
244
245 /* get new inode and set it up */
243 if (*pinode == NULL) { 246 if (*pinode == NULL) {
244 __u64 unique_id = le64_to_cpu(presp_data->UniqueId); 247 *pinode = cifs_iget(sb, &fattr);
245 *pinode = cifs_new_inode(sb, &unique_id); 248 if (!*pinode) {
249 rc = -ENOMEM;
250 goto posix_open_ret;
251 }
252 } else {
253 cifs_fattr_to_inode(*pinode, &fattr);
246 } 254 }
247 /* else an inode was passed in. Update its info, don't create one */
248
249 /* We do not need to close the file if new_inode fails since
250 the caller will retry qpathinfo as long as inode is null */
251 if (*pinode == NULL)
252 goto posix_open_ret;
253
254 posix_fill_in_inode(*pinode, presp_data, 1);
255 255
256 cifs_fill_fileinfo(*pinode, *pnetfid, cifs_sb->tcon, write_only); 256 cifs_fill_fileinfo(*pinode, *pnetfid, cifs_sb->tcon, write_only);
257 257
@@ -425,9 +425,10 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
425 args.uid = NO_CHANGE_64; 425 args.uid = NO_CHANGE_64;
426 args.gid = NO_CHANGE_64; 426 args.gid = NO_CHANGE_64;
427 } 427 }
428 CIFSSMBUnixSetInfo(xid, tcon, full_path, &args, 428 CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
429 cifs_sb->local_nls, 429 cifs_sb->local_nls,
430 cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); 430 cifs_sb->mnt_cifs_flags &
431 CIFS_MOUNT_MAP_SPECIAL_CHR);
431 } else { 432 } else {
432 /* BB implement mode setting via Windows security 433 /* BB implement mode setting via Windows security
433 descriptors e.g. */ 434 descriptors e.g. */
@@ -515,10 +516,10 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
515 args.uid = NO_CHANGE_64; 516 args.uid = NO_CHANGE_64;
516 args.gid = NO_CHANGE_64; 517 args.gid = NO_CHANGE_64;
517 } 518 }
518 rc = CIFSSMBUnixSetInfo(xid, pTcon, full_path, 519 rc = CIFSSMBUnixSetPathInfo(xid, pTcon, full_path, &args,
519 &args, cifs_sb->local_nls, 520 cifs_sb->local_nls,
520 cifs_sb->mnt_cifs_flags & 521 cifs_sb->mnt_cifs_flags &
521 CIFS_MOUNT_MAP_SPECIAL_CHR); 522 CIFS_MOUNT_MAP_SPECIAL_CHR);
522 523
523 if (!rc) { 524 if (!rc) {
524 rc = cifs_get_inode_info_unix(&newinode, full_path, 525 rc = cifs_get_inode_info_unix(&newinode, full_path,
@@ -643,6 +644,15 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
643 } 644 }
644 } 645 }
645 646
647 /*
648 * O_EXCL: optimize away the lookup, but don't hash the dentry. Let
649 * the VFS handle the create.
650 */
651 if (nd->flags & LOOKUP_EXCL) {
652 d_instantiate(direntry, NULL);
653 return 0;
654 }
655
646 /* can not grab the rename sem here since it would 656 /* can not grab the rename sem here since it would
647 deadlock in the cases (beginning of sys_rename itself) 657 deadlock in the cases (beginning of sys_rename itself)
648 in which we already have the sb rename sem */ 658 in which we already have the sb rename sem */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 97ce4bf89d15..c34b7f8a217b 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -448,9 +448,9 @@ int cifs_open(struct inode *inode, struct file *file)
448 .mtime = NO_CHANGE_64, 448 .mtime = NO_CHANGE_64,
449 .device = 0, 449 .device = 0,
450 }; 450 };
451 CIFSSMBUnixSetInfo(xid, tcon, full_path, &args, 451 CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
452 cifs_sb->local_nls, 452 cifs_sb->local_nls,
453 cifs_sb->mnt_cifs_flags & 453 cifs_sb->mnt_cifs_flags &
454 CIFS_MOUNT_MAP_SPECIAL_CHR); 454 CIFS_MOUNT_MAP_SPECIAL_CHR);
455 } 455 }
456 } 456 }
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 155c9e785d0c..18afe57b2461 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -77,239 +77,202 @@ static void cifs_set_ops(struct inode *inode, const bool is_dfs_referral)
77 } 77 }
78} 78}
79 79
80static void cifs_unix_info_to_inode(struct inode *inode, 80/* populate an inode with info from a cifs_fattr struct */
81 FILE_UNIX_BASIC_INFO *info, int force_uid_gid) 81void
82cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
82{ 83{
84 struct cifsInodeInfo *cifs_i = CIFS_I(inode);
83 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); 85 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
84 struct cifsInodeInfo *cifsInfo = CIFS_I(inode); 86 unsigned long oldtime = cifs_i->time;
85 __u64 num_of_bytes = le64_to_cpu(info->NumOfBytes); 87
86 __u64 end_of_file = le64_to_cpu(info->EndOfFile); 88 inode->i_atime = fattr->cf_atime;
89 inode->i_mtime = fattr->cf_mtime;
90 inode->i_ctime = fattr->cf_ctime;
91 inode->i_rdev = fattr->cf_rdev;
92 inode->i_nlink = fattr->cf_nlink;
93 inode->i_uid = fattr->cf_uid;
94 inode->i_gid = fattr->cf_gid;
95
96 /* if dynperm is set, don't clobber existing mode */
97 if (inode->i_state & I_NEW ||
98 !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM))
99 inode->i_mode = fattr->cf_mode;
100
101 cifs_i->cifsAttrs = fattr->cf_cifsattrs;
102 cifs_i->uniqueid = fattr->cf_uniqueid;
103
104 if (fattr->cf_flags & CIFS_FATTR_NEED_REVAL)
105 cifs_i->time = 0;
106 else
107 cifs_i->time = jiffies;
108
109 cFYI(1, ("inode 0x%p old_time=%ld new_time=%ld", inode,
110 oldtime, cifs_i->time));
87 111
88 inode->i_atime = cifs_NTtimeToUnix(info->LastAccessTime); 112 cifs_i->delete_pending = fattr->cf_flags & CIFS_FATTR_DELETE_PENDING;
89 inode->i_mtime = 113
90 cifs_NTtimeToUnix(info->LastModificationTime); 114 /*
91 inode->i_ctime = cifs_NTtimeToUnix(info->LastStatusChange); 115 * Can't safely change the file size here if the client is writing to
92 inode->i_mode = le64_to_cpu(info->Permissions); 116 * it due to potential races.
117 */
118 spin_lock(&inode->i_lock);
119 if (is_size_safe_to_change(cifs_i, fattr->cf_eof)) {
120 i_size_write(inode, fattr->cf_eof);
121
122 /*
123 * i_blocks is not related to (i_size / i_blksize),
124 * but instead 512 byte (2**9) size is required for
125 * calculating num blocks.
126 */
127 inode->i_blocks = (512 - 1 + fattr->cf_bytes) >> 9;
128 }
129 spin_unlock(&inode->i_lock);
130
131 cifs_set_ops(inode, fattr->cf_flags & CIFS_FATTR_DFS_REFERRAL);
132}
133
134/* Fill a cifs_fattr struct with info from FILE_UNIX_BASIC_INFO. */
135void
136cifs_unix_basic_to_fattr(struct cifs_fattr *fattr, FILE_UNIX_BASIC_INFO *info,
137 struct cifs_sb_info *cifs_sb)
138{
139 memset(fattr, 0, sizeof(*fattr));
140 fattr->cf_uniqueid = le64_to_cpu(info->UniqueId);
141 fattr->cf_bytes = le64_to_cpu(info->NumOfBytes);
142 fattr->cf_eof = le64_to_cpu(info->EndOfFile);
143
144 fattr->cf_atime = cifs_NTtimeToUnix(info->LastAccessTime);
145 fattr->cf_mtime = cifs_NTtimeToUnix(info->LastModificationTime);
146 fattr->cf_ctime = cifs_NTtimeToUnix(info->LastStatusChange);
147 fattr->cf_mode = le64_to_cpu(info->Permissions);
93 148
94 /* 149 /*
95 * Since we set the inode type below we need to mask off 150 * Since we set the inode type below we need to mask off
96 * to avoid strange results if bits set above. 151 * to avoid strange results if bits set above.
97 */ 152 */
98 inode->i_mode &= ~S_IFMT; 153 fattr->cf_mode &= ~S_IFMT;
99 switch (le32_to_cpu(info->Type)) { 154 switch (le32_to_cpu(info->Type)) {
100 case UNIX_FILE: 155 case UNIX_FILE:
101 inode->i_mode |= S_IFREG; 156 fattr->cf_mode |= S_IFREG;
157 fattr->cf_dtype = DT_REG;
102 break; 158 break;
103 case UNIX_SYMLINK: 159 case UNIX_SYMLINK:
104 inode->i_mode |= S_IFLNK; 160 fattr->cf_mode |= S_IFLNK;
161 fattr->cf_dtype = DT_LNK;
105 break; 162 break;
106 case UNIX_DIR: 163 case UNIX_DIR:
107 inode->i_mode |= S_IFDIR; 164 fattr->cf_mode |= S_IFDIR;
165 fattr->cf_dtype = DT_DIR;
108 break; 166 break;
109 case UNIX_CHARDEV: 167 case UNIX_CHARDEV:
110 inode->i_mode |= S_IFCHR; 168 fattr->cf_mode |= S_IFCHR;
111 inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor), 169 fattr->cf_dtype = DT_CHR;
112 le64_to_cpu(info->DevMinor) & MINORMASK); 170 fattr->cf_rdev = MKDEV(le64_to_cpu(info->DevMajor),
171 le64_to_cpu(info->DevMinor) & MINORMASK);
113 break; 172 break;
114 case UNIX_BLOCKDEV: 173 case UNIX_BLOCKDEV:
115 inode->i_mode |= S_IFBLK; 174 fattr->cf_mode |= S_IFBLK;
116 inode->i_rdev = MKDEV(le64_to_cpu(info->DevMajor), 175 fattr->cf_dtype = DT_BLK;
117 le64_to_cpu(info->DevMinor) & MINORMASK); 176 fattr->cf_rdev = MKDEV(le64_to_cpu(info->DevMajor),
177 le64_to_cpu(info->DevMinor) & MINORMASK);
118 break; 178 break;
119 case UNIX_FIFO: 179 case UNIX_FIFO:
120 inode->i_mode |= S_IFIFO; 180 fattr->cf_mode |= S_IFIFO;
181 fattr->cf_dtype = DT_FIFO;
121 break; 182 break;
122 case UNIX_SOCKET: 183 case UNIX_SOCKET:
123 inode->i_mode |= S_IFSOCK; 184 fattr->cf_mode |= S_IFSOCK;
185 fattr->cf_dtype = DT_SOCK;
124 break; 186 break;
125 default: 187 default:
126 /* safest to call it a file if we do not know */ 188 /* safest to call it a file if we do not know */
127 inode->i_mode |= S_IFREG; 189 fattr->cf_mode |= S_IFREG;
190 fattr->cf_dtype = DT_REG;
128 cFYI(1, ("unknown type %d", le32_to_cpu(info->Type))); 191 cFYI(1, ("unknown type %d", le32_to_cpu(info->Type)));
129 break; 192 break;
130 } 193 }
131 194
132 if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) && 195 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
133 !force_uid_gid) 196 fattr->cf_uid = cifs_sb->mnt_uid;
134 inode->i_uid = cifs_sb->mnt_uid;
135 else 197 else
136 inode->i_uid = le64_to_cpu(info->Uid); 198 fattr->cf_uid = le64_to_cpu(info->Uid);
137 199
138 if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) && 200 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID)
139 !force_uid_gid) 201 fattr->cf_gid = cifs_sb->mnt_gid;
140 inode->i_gid = cifs_sb->mnt_gid;
141 else 202 else
142 inode->i_gid = le64_to_cpu(info->Gid); 203 fattr->cf_gid = le64_to_cpu(info->Gid);
143
144 inode->i_nlink = le64_to_cpu(info->Nlinks);
145
146 cifsInfo->server_eof = end_of_file;
147 spin_lock(&inode->i_lock);
148 if (is_size_safe_to_change(cifsInfo, end_of_file)) {
149 /*
150 * We can not safely change the file size here if the client
151 * is writing to it due to potential races.
152 */
153 i_size_write(inode, end_of_file);
154 204
155 /* 205 fattr->cf_nlink = le64_to_cpu(info->Nlinks);
156 * i_blocks is not related to (i_size / i_blksize),
157 * but instead 512 byte (2**9) size is required for
158 * calculating num blocks.
159 */
160 inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
161 }
162 spin_unlock(&inode->i_lock);
163} 206}
164 207
165
166/* 208/*
167 * Needed to setup inode data for the directory which is the 209 * Fill a cifs_fattr struct with fake inode info.
168 * junction to the new submount (ie to setup the fake directory
169 * which represents a DFS referral)
170 */
171static void fill_fake_finddataunix(FILE_UNIX_BASIC_INFO *pfnd_dat,
172 struct super_block *sb)
173{
174 struct inode *pinode = NULL;
175
176 memset(pfnd_dat, 0, sizeof(FILE_UNIX_BASIC_INFO));
177
178/* __le64 pfnd_dat->EndOfFile = cpu_to_le64(0);
179 __le64 pfnd_dat->NumOfBytes = cpu_to_le64(0);
180 __u64 UniqueId = 0; */
181 pfnd_dat->LastStatusChange =
182 cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
183 pfnd_dat->LastAccessTime =
184 cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
185 pfnd_dat->LastModificationTime =
186 cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
187 pfnd_dat->Type = cpu_to_le32(UNIX_DIR);
188 pfnd_dat->Permissions = cpu_to_le64(S_IXUGO | S_IRWXU);
189 pfnd_dat->Nlinks = cpu_to_le64(2);
190 if (sb->s_root)
191 pinode = sb->s_root->d_inode;
192 if (pinode == NULL)
193 return;
194
195 /* fill in default values for the remaining based on root
196 inode since we can not query the server for this inode info */
197 pfnd_dat->DevMajor = cpu_to_le64(MAJOR(pinode->i_rdev));
198 pfnd_dat->DevMinor = cpu_to_le64(MINOR(pinode->i_rdev));
199 pfnd_dat->Uid = cpu_to_le64(pinode->i_uid);
200 pfnd_dat->Gid = cpu_to_le64(pinode->i_gid);
201}
202
203/**
204 * cifs_new inode - create new inode, initialize, and hash it
205 * @sb - pointer to superblock
206 * @inum - if valid pointer and serverino is enabled, replace i_ino with val
207 *
208 * Create a new inode, initialize it for CIFS and hash it. Returns the new
209 * inode or NULL if one couldn't be allocated.
210 * 210 *
211 * If the share isn't mounted with "serverino" or inum is a NULL pointer then 211 * Needed to setup cifs_fattr data for the directory which is the
212 * we'll just use the inode number assigned by new_inode(). Note that this can 212 * junction to the new submount (ie to setup the fake directory
213 * mean i_ino collisions since the i_ino assigned by new_inode is not 213 * which represents a DFS referral).
214 * guaranteed to be unique.
215 */ 214 */
216struct inode * 215void
217cifs_new_inode(struct super_block *sb, __u64 *inum) 216cifs_create_dfs_fattr(struct cifs_fattr *fattr, struct super_block *sb)
218{ 217{
219 struct inode *inode; 218 struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
220
221 inode = new_inode(sb);
222 if (inode == NULL)
223 return NULL;
224
225 /*
226 * BB: Is i_ino == 0 legal? Here, we assume that it is. If it isn't we
227 * stop passing inum as ptr. Are there sanity checks we can use to
228 * ensure that the server is really filling in that field? Also,
229 * if serverino is disabled, perhaps we should be using iunique()?
230 */
231 if (inum && (CIFS_SB(sb)->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM))
232 inode->i_ino = (unsigned long) *inum;
233
234 /*
235 * must set this here instead of cifs_alloc_inode since VFS will
236 * clobber i_flags
237 */
238 if (sb->s_flags & MS_NOATIME)
239 inode->i_flags |= S_NOATIME | S_NOCMTIME;
240
241 insert_inode_hash(inode);
242 219
243 return inode; 220 cFYI(1, ("creating fake fattr for DFS referral"));
221
222 memset(fattr, 0, sizeof(*fattr));
223 fattr->cf_mode = S_IFDIR | S_IXUGO | S_IRWXU;
224 fattr->cf_uid = cifs_sb->mnt_uid;
225 fattr->cf_gid = cifs_sb->mnt_gid;
226 fattr->cf_atime = CURRENT_TIME;
227 fattr->cf_ctime = CURRENT_TIME;
228 fattr->cf_mtime = CURRENT_TIME;
229 fattr->cf_nlink = 2;
230 fattr->cf_flags |= CIFS_FATTR_DFS_REFERRAL;
244} 231}
245 232
246int cifs_get_inode_info_unix(struct inode **pinode, 233int cifs_get_inode_info_unix(struct inode **pinode,
247 const unsigned char *full_path, struct super_block *sb, int xid) 234 const unsigned char *full_path,
235 struct super_block *sb, int xid)
248{ 236{
249 int rc = 0; 237 int rc;
250 FILE_UNIX_BASIC_INFO find_data; 238 FILE_UNIX_BASIC_INFO find_data;
251 struct cifsTconInfo *pTcon; 239 struct cifs_fattr fattr;
252 struct inode *inode; 240 struct cifsTconInfo *tcon;
253 struct cifs_sb_info *cifs_sb = CIFS_SB(sb); 241 struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
254 bool is_dfs_referral = false;
255 struct cifsInodeInfo *cifsInfo;
256 __u64 num_of_bytes;
257 __u64 end_of_file;
258 242
259 pTcon = cifs_sb->tcon; 243 tcon = cifs_sb->tcon;
260 cFYI(1, ("Getting info on %s", full_path)); 244 cFYI(1, ("Getting info on %s", full_path));
261 245
262 /* could have done a find first instead but this returns more info */ 246 /* could have done a find first instead but this returns more info */
263 rc = CIFSSMBUnixQPathInfo(xid, pTcon, full_path, &find_data, 247 rc = CIFSSMBUnixQPathInfo(xid, tcon, full_path, &find_data,
264 cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & 248 cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
265 CIFS_MOUNT_MAP_SPECIAL_CHR); 249 CIFS_MOUNT_MAP_SPECIAL_CHR);
266 if (rc == -EREMOTE && !is_dfs_referral) {
267 is_dfs_referral = true;
268 cFYI(DBG2, ("DFS ref"));
269 /* for DFS, server does not give us real inode data */
270 fill_fake_finddataunix(&find_data, sb);
271 rc = 0;
272 } else if (rc)
273 goto cgiiu_exit;
274 250
275 num_of_bytes = le64_to_cpu(find_data.NumOfBytes); 251 if (!rc) {
276 end_of_file = le64_to_cpu(find_data.EndOfFile); 252 cifs_unix_basic_to_fattr(&fattr, &find_data, cifs_sb);
253 } else if (rc == -EREMOTE) {
254 cifs_create_dfs_fattr(&fattr, sb);
255 rc = 0;
256 } else {
257 return rc;
258 }
277 259
278 /* get new inode */
279 if (*pinode == NULL) { 260 if (*pinode == NULL) {
280 __u64 unique_id = le64_to_cpu(find_data.UniqueId); 261 /* get new inode */
281 *pinode = cifs_new_inode(sb, &unique_id); 262 *pinode = cifs_iget(sb, &fattr);
282 if (*pinode == NULL) { 263 if (!*pinode)
283 rc = -ENOMEM; 264 rc = -ENOMEM;
284 goto cgiiu_exit; 265 } else {
285 } 266 /* we already have inode, update it */
267 cifs_fattr_to_inode(*pinode, &fattr);
286 } 268 }
287 269
288 inode = *pinode;
289 cifsInfo = CIFS_I(inode);
290
291 cFYI(1, ("Old time %ld", cifsInfo->time));
292 cifsInfo->time = jiffies;
293 cFYI(1, ("New time %ld", cifsInfo->time));
294 /* this is ok to set on every inode revalidate */
295 atomic_set(&cifsInfo->inUse, 1);
296
297 cifs_unix_info_to_inode(inode, &find_data, 0);
298
299 if (num_of_bytes < end_of_file)
300 cFYI(1, ("allocation size less than end of file"));
301 cFYI(1, ("Size %ld and blocks %llu",
302 (unsigned long) inode->i_size,
303 (unsigned long long)inode->i_blocks));
304
305 cifs_set_ops(inode, is_dfs_referral);
306cgiiu_exit:
307 return rc; 270 return rc;
308} 271}
309 272
310static int decode_sfu_inode(struct inode *inode, __u64 size, 273static int
311 const unsigned char *path, 274cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path,
312 struct cifs_sb_info *cifs_sb, int xid) 275 struct cifs_sb_info *cifs_sb, int xid)
313{ 276{
314 int rc; 277 int rc;
315 int oplock = 0; 278 int oplock = 0;
@@ -321,10 +284,15 @@ static int decode_sfu_inode(struct inode *inode, __u64 size,
321 284
322 pbuf = buf; 285 pbuf = buf;
323 286
324 if (size == 0) { 287 fattr->cf_mode &= ~S_IFMT;
325 inode->i_mode |= S_IFIFO; 288
289 if (fattr->cf_eof == 0) {
290 fattr->cf_mode |= S_IFIFO;
291 fattr->cf_dtype = DT_FIFO;
326 return 0; 292 return 0;
327 } else if (size < 8) { 293 } else if (fattr->cf_eof < 8) {
294 fattr->cf_mode |= S_IFREG;
295 fattr->cf_dtype = DT_REG;
328 return -EINVAL; /* EOPNOTSUPP? */ 296 return -EINVAL; /* EOPNOTSUPP? */
329 } 297 }
330 298
@@ -336,42 +304,46 @@ static int decode_sfu_inode(struct inode *inode, __u64 size,
336 if (rc == 0) { 304 if (rc == 0) {
337 int buf_type = CIFS_NO_BUFFER; 305 int buf_type = CIFS_NO_BUFFER;
338 /* Read header */ 306 /* Read header */
339 rc = CIFSSMBRead(xid, pTcon, 307 rc = CIFSSMBRead(xid, pTcon, netfid,
340 netfid,
341 24 /* length */, 0 /* offset */, 308 24 /* length */, 0 /* offset */,
342 &bytes_read, &pbuf, &buf_type); 309 &bytes_read, &pbuf, &buf_type);
343 if ((rc == 0) && (bytes_read >= 8)) { 310 if ((rc == 0) && (bytes_read >= 8)) {
344 if (memcmp("IntxBLK", pbuf, 8) == 0) { 311 if (memcmp("IntxBLK", pbuf, 8) == 0) {
345 cFYI(1, ("Block device")); 312 cFYI(1, ("Block device"));
346 inode->i_mode |= S_IFBLK; 313 fattr->cf_mode |= S_IFBLK;
314 fattr->cf_dtype = DT_BLK;
347 if (bytes_read == 24) { 315 if (bytes_read == 24) {
348 /* we have enough to decode dev num */ 316 /* we have enough to decode dev num */
349 __u64 mjr; /* major */ 317 __u64 mjr; /* major */
350 __u64 mnr; /* minor */ 318 __u64 mnr; /* minor */
351 mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); 319 mjr = le64_to_cpu(*(__le64 *)(pbuf+8));
352 mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); 320 mnr = le64_to_cpu(*(__le64 *)(pbuf+16));
353 inode->i_rdev = MKDEV(mjr, mnr); 321 fattr->cf_rdev = MKDEV(mjr, mnr);
354 } 322 }
355 } else if (memcmp("IntxCHR", pbuf, 8) == 0) { 323 } else if (memcmp("IntxCHR", pbuf, 8) == 0) {
356 cFYI(1, ("Char device")); 324 cFYI(1, ("Char device"));
357 inode->i_mode |= S_IFCHR; 325 fattr->cf_mode |= S_IFCHR;
326 fattr->cf_dtype = DT_CHR;
358 if (bytes_read == 24) { 327 if (bytes_read == 24) {
359 /* we have enough to decode dev num */ 328 /* we have enough to decode dev num */
360 __u64 mjr; /* major */ 329 __u64 mjr; /* major */
361 __u64 mnr; /* minor */ 330 __u64 mnr; /* minor */
362 mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); 331 mjr = le64_to_cpu(*(__le64 *)(pbuf+8));
363 mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); 332 mnr = le64_to_cpu(*(__le64 *)(pbuf+16));
364 inode->i_rdev = MKDEV(mjr, mnr); 333 fattr->cf_rdev = MKDEV(mjr, mnr);
365 } 334 }
366 } else if (memcmp("IntxLNK", pbuf, 7) == 0) { 335 } else if (memcmp("IntxLNK", pbuf, 7) == 0) {
367 cFYI(1, ("Symlink")); 336 cFYI(1, ("Symlink"));
368 inode->i_mode |= S_IFLNK; 337 fattr->cf_mode |= S_IFLNK;
338 fattr->cf_dtype = DT_LNK;
369 } else { 339 } else {
370 inode->i_mode |= S_IFREG; /* file? */ 340 fattr->cf_mode |= S_IFREG; /* file? */
341 fattr->cf_dtype = DT_REG;
371 rc = -EOPNOTSUPP; 342 rc = -EOPNOTSUPP;
372 } 343 }
373 } else { 344 } else {
374 inode->i_mode |= S_IFREG; /* then it is a file */ 345 fattr->cf_mode |= S_IFREG; /* then it is a file */
346 fattr->cf_dtype = DT_REG;
375 rc = -EOPNOTSUPP; /* or some unknown SFU type */ 347 rc = -EOPNOTSUPP; /* or some unknown SFU type */
376 } 348 }
377 CIFSSMBClose(xid, pTcon, netfid); 349 CIFSSMBClose(xid, pTcon, netfid);
@@ -381,9 +353,13 @@ static int decode_sfu_inode(struct inode *inode, __u64 size,
381 353
382#define SFBITS_MASK (S_ISVTX | S_ISGID | S_ISUID) /* SETFILEBITS valid bits */ 354#define SFBITS_MASK (S_ISVTX | S_ISGID | S_ISUID) /* SETFILEBITS valid bits */
383 355
384static int get_sfu_mode(struct inode *inode, 356/*
385 const unsigned char *path, 357 * Fetch mode bits as provided by SFU.
386 struct cifs_sb_info *cifs_sb, int xid) 358 *
359 * FIXME: Doesn't this clobber the type bit we got from cifs_sfu_type ?
360 */
361static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,
362 struct cifs_sb_info *cifs_sb, int xid)
387{ 363{
388#ifdef CONFIG_CIFS_XATTR 364#ifdef CONFIG_CIFS_XATTR
389 ssize_t rc; 365 ssize_t rc;
@@ -391,68 +367,80 @@ static int get_sfu_mode(struct inode *inode,
391 __u32 mode; 367 __u32 mode;
392 368
393 rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS", 369 rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS",
394 ea_value, 4 /* size of buf */, cifs_sb->local_nls, 370 ea_value, 4 /* size of buf */, cifs_sb->local_nls,
395 cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); 371 cifs_sb->mnt_cifs_flags &
372 CIFS_MOUNT_MAP_SPECIAL_CHR);
396 if (rc < 0) 373 if (rc < 0)
397 return (int)rc; 374 return (int)rc;
398 else if (rc > 3) { 375 else if (rc > 3) {
399 mode = le32_to_cpu(*((__le32 *)ea_value)); 376 mode = le32_to_cpu(*((__le32 *)ea_value));
400 inode->i_mode &= ~SFBITS_MASK; 377 fattr->cf_mode &= ~SFBITS_MASK;
401 cFYI(1, ("special bits 0%o org mode 0%o", mode, inode->i_mode)); 378 cFYI(1, ("special bits 0%o org mode 0%o", mode,
402 inode->i_mode = (mode & SFBITS_MASK) | inode->i_mode; 379 fattr->cf_mode));
380 fattr->cf_mode = (mode & SFBITS_MASK) | fattr->cf_mode;
403 cFYI(1, ("special mode bits 0%o", mode)); 381 cFYI(1, ("special mode bits 0%o", mode));
404 return 0;
405 } else {
406 return 0;
407 } 382 }
383
384 return 0;
408#else 385#else
409 return -EOPNOTSUPP; 386 return -EOPNOTSUPP;
410#endif 387#endif
411} 388}
412 389
413/* 390/* Fill a cifs_fattr struct with info from FILE_ALL_INFO */
414 * Needed to setup inode data for the directory which is the 391void
415 * junction to the new submount (ie to setup the fake directory 392cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
416 * which represents a DFS referral) 393 struct cifs_sb_info *cifs_sb, bool adjust_tz)
417 */
418static void fill_fake_finddata(FILE_ALL_INFO *pfnd_dat,
419 struct super_block *sb)
420{ 394{
421 memset(pfnd_dat, 0, sizeof(FILE_ALL_INFO)); 395 memset(fattr, 0, sizeof(*fattr));
422 396 fattr->cf_cifsattrs = le32_to_cpu(info->Attributes);
423/* __le64 pfnd_dat->AllocationSize = cpu_to_le64(0); 397 if (info->DeletePending)
424 __le64 pfnd_dat->EndOfFile = cpu_to_le64(0); 398 fattr->cf_flags |= CIFS_FATTR_DELETE_PENDING;
425 __u8 pfnd_dat->DeletePending = 0; 399
426 __u8 pfnd_data->Directory = 0; 400 if (info->LastAccessTime)
427 __le32 pfnd_dat->EASize = 0; 401 fattr->cf_atime = cifs_NTtimeToUnix(info->LastAccessTime);
428 __u64 pfnd_dat->IndexNumber = 0; 402 else
429 __u64 pfnd_dat->IndexNumber1 = 0; */ 403 fattr->cf_atime = CURRENT_TIME;
430 pfnd_dat->CreationTime = 404
431 cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME)); 405 fattr->cf_ctime = cifs_NTtimeToUnix(info->ChangeTime);
432 pfnd_dat->LastAccessTime = 406 fattr->cf_mtime = cifs_NTtimeToUnix(info->LastWriteTime);
433 cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME)); 407
434 pfnd_dat->LastWriteTime = 408 if (adjust_tz) {
435 cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME)); 409 fattr->cf_ctime.tv_sec += cifs_sb->tcon->ses->server->timeAdj;
436 pfnd_dat->ChangeTime = 410 fattr->cf_mtime.tv_sec += cifs_sb->tcon->ses->server->timeAdj;
437 cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME)); 411 }
438 pfnd_dat->Attributes = cpu_to_le32(ATTR_DIRECTORY); 412
439 pfnd_dat->NumberOfLinks = cpu_to_le32(2); 413 fattr->cf_eof = le64_to_cpu(info->EndOfFile);
414 fattr->cf_bytes = le64_to_cpu(info->AllocationSize);
415
416 if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
417 fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
418 fattr->cf_dtype = DT_DIR;
419 } else {
420 fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
421 fattr->cf_dtype = DT_REG;
422
423 /* clear write bits if ATTR_READONLY is set */
424 if (fattr->cf_cifsattrs & ATTR_READONLY)
425 fattr->cf_mode &= ~(S_IWUGO);
426 }
427
428 fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
429
430 fattr->cf_uid = cifs_sb->mnt_uid;
431 fattr->cf_gid = cifs_sb->mnt_gid;
440} 432}
441 433
442int cifs_get_inode_info(struct inode **pinode, 434int cifs_get_inode_info(struct inode **pinode,
443 const unsigned char *full_path, FILE_ALL_INFO *pfindData, 435 const unsigned char *full_path, FILE_ALL_INFO *pfindData,
444 struct super_block *sb, int xid, const __u16 *pfid) 436 struct super_block *sb, int xid, const __u16 *pfid)
445{ 437{
446 int rc = 0; 438 int rc = 0, tmprc;
447 __u32 attr;
448 struct cifsInodeInfo *cifsInfo;
449 struct cifsTconInfo *pTcon; 439 struct cifsTconInfo *pTcon;
450 struct inode *inode;
451 struct cifs_sb_info *cifs_sb = CIFS_SB(sb); 440 struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
452 char *buf = NULL; 441 char *buf = NULL;
453 bool adjustTZ = false; 442 bool adjustTZ = false;
454 bool is_dfs_referral = false; 443 struct cifs_fattr fattr;
455 umode_t default_mode;
456 444
457 pTcon = cifs_sb->tcon; 445 pTcon = cifs_sb->tcon;
458 cFYI(1, ("Getting info on %s", full_path)); 446 cFYI(1, ("Getting info on %s", full_path));
@@ -487,163 +475,82 @@ int cifs_get_inode_info(struct inode **pinode,
487 adjustTZ = true; 475 adjustTZ = true;
488 } 476 }
489 } 477 }
490 /* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */ 478
491 if (rc == -EREMOTE) { 479 if (!rc) {
492 is_dfs_referral = true; 480 cifs_all_info_to_fattr(&fattr, (FILE_ALL_INFO *) pfindData,
493 fill_fake_finddata(pfindData, sb); 481 cifs_sb, adjustTZ);
482 } else if (rc == -EREMOTE) {
483 cifs_create_dfs_fattr(&fattr, sb);
494 rc = 0; 484 rc = 0;
495 } else if (rc) 485 } else {
496 goto cgii_exit; 486 goto cgii_exit;
487 }
497 488
498 attr = le32_to_cpu(pfindData->Attributes); 489 /*
499 490 * If an inode wasn't passed in, then get the inode number
500 /* get new inode */ 491 *
492 * Is an i_ino of zero legal? Can we use that to check if the server
493 * supports returning inode numbers? Are there other sanity checks we
494 * can use to ensure that the server is really filling in that field?
495 *
496 * We can not use the IndexNumber field by default from Windows or
497 * Samba (in ALL_INFO buf) but we can request it explicitly. The SNIA
498 * CIFS spec claims that this value is unique within the scope of a
499 * share, and the windows docs hint that it's actually unique
500 * per-machine.
501 *
502 * There may be higher info levels that work but are there Windows
503 * server or network appliances for which IndexNumber field is not
504 * guaranteed unique?
505 */
501 if (*pinode == NULL) { 506 if (*pinode == NULL) {
502 __u64 inode_num;
503 __u64 *pinum = &inode_num;
504
505 /* Is an i_ino of zero legal? Can we use that to check
506 if the server supports returning inode numbers? Are
507 there other sanity checks we can use to ensure that
508 the server is really filling in that field? */
509
510 /* We can not use the IndexNumber field by default from
511 Windows or Samba (in ALL_INFO buf) but we can request
512 it explicitly. It may not be unique presumably if
513 the server has multiple devices mounted under one share */
514
515 /* There may be higher info levels that work but are
516 there Windows server or network appliances for which
517 IndexNumber field is not guaranteed unique? */
518
519 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { 507 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
520 int rc1 = 0; 508 int rc1 = 0;
521 509
522 rc1 = CIFSGetSrvInodeNumber(xid, pTcon, 510 rc1 = CIFSGetSrvInodeNumber(xid, pTcon,
523 full_path, pinum, 511 full_path, &fattr.cf_uniqueid,
524 cifs_sb->local_nls, 512 cifs_sb->local_nls,
525 cifs_sb->mnt_cifs_flags & 513 cifs_sb->mnt_cifs_flags &
526 CIFS_MOUNT_MAP_SPECIAL_CHR); 514 CIFS_MOUNT_MAP_SPECIAL_CHR);
527 if (rc1) { 515 if (rc1) {
528 cFYI(1, ("GetSrvInodeNum rc %d", rc1));
529 pinum = NULL;
530 /* BB EOPNOSUPP disable SERVER_INUM? */ 516 /* BB EOPNOSUPP disable SERVER_INUM? */
517 cFYI(1, ("GetSrvInodeNum rc %d", rc1));
518 fattr.cf_uniqueid = iunique(sb, ROOT_I);
531 } 519 }
532 } else { 520 } else {
533 pinum = NULL; 521 fattr.cf_uniqueid = iunique(sb, ROOT_I);
534 }
535
536 *pinode = cifs_new_inode(sb, pinum);
537 if (*pinode == NULL) {
538 rc = -ENOMEM;
539 goto cgii_exit;
540 } 522 }
541 }
542 inode = *pinode;
543 cifsInfo = CIFS_I(inode);
544 cifsInfo->cifsAttrs = attr;
545 cifsInfo->delete_pending = pfindData->DeletePending ? true : false;
546 cFYI(1, ("Old time %ld", cifsInfo->time));
547 cifsInfo->time = jiffies;
548 cFYI(1, ("New time %ld", cifsInfo->time));
549
550 /* blksize needs to be multiple of two. So safer to default to
551 blksize and blkbits set in superblock so 2**blkbits and blksize
552 will match rather than setting to:
553 (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/
554
555 /* Linux can not store file creation time so ignore it */
556 if (pfindData->LastAccessTime)
557 inode->i_atime = cifs_NTtimeToUnix(pfindData->LastAccessTime);
558 else /* do not need to use current_fs_time - time not stored */
559 inode->i_atime = CURRENT_TIME;
560 inode->i_mtime = cifs_NTtimeToUnix(pfindData->LastWriteTime);
561 inode->i_ctime = cifs_NTtimeToUnix(pfindData->ChangeTime);
562 cFYI(DBG2, ("Attributes came in as 0x%x", attr));
563 if (adjustTZ && (pTcon->ses) && (pTcon->ses->server)) {
564 inode->i_ctime.tv_sec += pTcon->ses->server->timeAdj;
565 inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj;
566 }
567
568 /* get default inode mode */
569 if (attr & ATTR_DIRECTORY)
570 default_mode = cifs_sb->mnt_dir_mode;
571 else
572 default_mode = cifs_sb->mnt_file_mode;
573
574 /* set permission bits */
575 if (atomic_read(&cifsInfo->inUse) == 0 ||
576 (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
577 inode->i_mode = default_mode;
578 else {
579 /* just reenable write bits if !ATTR_READONLY */
580 if ((inode->i_mode & S_IWUGO) == 0 &&
581 (attr & ATTR_READONLY) == 0)
582 inode->i_mode |= (S_IWUGO & default_mode);
583
584 inode->i_mode &= ~S_IFMT;
585 }
586 /* clear write bits if ATTR_READONLY is set */
587 if (attr & ATTR_READONLY)
588 inode->i_mode &= ~S_IWUGO;
589
590 /* set inode type */
591 if ((attr & ATTR_SYSTEM) &&
592 (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) {
593 /* no need to fix endianness on 0 */
594 if (pfindData->EndOfFile == 0)
595 inode->i_mode |= S_IFIFO;
596 else if (decode_sfu_inode(inode,
597 le64_to_cpu(pfindData->EndOfFile),
598 full_path, cifs_sb, xid))
599 cFYI(1, ("unknown SFU file type\n"));
600 } else { 523 } else {
601 if (attr & ATTR_DIRECTORY) 524 fattr.cf_uniqueid = CIFS_I(*pinode)->uniqueid;
602 inode->i_mode |= S_IFDIR;
603 else
604 inode->i_mode |= S_IFREG;
605 } 525 }
606 526
607 cifsInfo->server_eof = le64_to_cpu(pfindData->EndOfFile); 527 /* query for SFU type info if supported and needed */
608 spin_lock(&inode->i_lock); 528 if (fattr.cf_cifsattrs & ATTR_SYSTEM &&
609 if (is_size_safe_to_change(cifsInfo, cifsInfo->server_eof)) { 529 cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
610 /* can not safely shrink the file size here if the 530 tmprc = cifs_sfu_type(&fattr, full_path, cifs_sb, xid);
611 client is writing to it due to potential races */ 531 if (tmprc)
612 i_size_write(inode, cifsInfo->server_eof); 532 cFYI(1, ("cifs_sfu_type failed: %d", tmprc));
613
614 /* 512 bytes (2**9) is the fake blocksize that must be
615 used for this calculation */
616 inode->i_blocks = (512 - 1 + le64_to_cpu(
617 pfindData->AllocationSize)) >> 9;
618 } 533 }
619 spin_unlock(&inode->i_lock);
620 534
621 inode->i_nlink = le32_to_cpu(pfindData->NumberOfLinks);
622
623 /* BB fill in uid and gid here? with help from winbind?
624 or retrieve from NTFS stream extended attribute */
625#ifdef CONFIG_CIFS_EXPERIMENTAL 535#ifdef CONFIG_CIFS_EXPERIMENTAL
626 /* fill in 0777 bits from ACL */ 536 /* fill in 0777 bits from ACL */
627 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { 537 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
628 cFYI(1, ("Getting mode bits from ACL")); 538 cFYI(1, ("Getting mode bits from ACL"));
629 acl_to_uid_mode(cifs_sb, inode, full_path, pfid); 539 cifs_acl_to_fattr(cifs_sb, &fattr, *pinode, full_path, pfid);
630 } 540 }
631#endif 541#endif
632 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
633 /* fill in remaining high mode bits e.g. SUID, VTX */
634 get_sfu_mode(inode, full_path, cifs_sb, xid);
635 } else if (atomic_read(&cifsInfo->inUse) == 0) {
636 inode->i_uid = cifs_sb->mnt_uid;
637 inode->i_gid = cifs_sb->mnt_gid;
638 /* set so we do not keep refreshing these fields with
639 bad data after user has changed them in memory */
640 atomic_set(&cifsInfo->inUse, 1);
641 }
642
643 cifs_set_ops(inode, is_dfs_referral);
644
645 542
543 /* fill in remaining high mode bits e.g. SUID, VTX */
544 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
545 cifs_sfu_mode(&fattr, full_path, cifs_sb, xid);
646 546
547 if (!*pinode) {
548 *pinode = cifs_iget(sb, &fattr);
549 if (!*pinode)
550 rc = -ENOMEM;
551 } else {
552 cifs_fattr_to_inode(*pinode, &fattr);
553 }
647 554
648cgii_exit: 555cgii_exit:
649 kfree(buf); 556 kfree(buf);
@@ -695,33 +602,78 @@ char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb)
695 return full_path; 602 return full_path;
696} 603}
697 604
605static int
606cifs_find_inode(struct inode *inode, void *opaque)
607{
608 struct cifs_fattr *fattr = (struct cifs_fattr *) opaque;
609
610 if (CIFS_I(inode)->uniqueid != fattr->cf_uniqueid)
611 return 0;
612
613 return 1;
614}
615
616static int
617cifs_init_inode(struct inode *inode, void *opaque)
618{
619 struct cifs_fattr *fattr = (struct cifs_fattr *) opaque;
620
621 CIFS_I(inode)->uniqueid = fattr->cf_uniqueid;
622 return 0;
623}
624
625/* Given fattrs, get a corresponding inode */
626struct inode *
627cifs_iget(struct super_block *sb, struct cifs_fattr *fattr)
628{
629 unsigned long hash;
630 struct inode *inode;
631
632 cFYI(1, ("looking for uniqueid=%llu", fattr->cf_uniqueid));
633
634 /* hash down to 32-bits on 32-bit arch */
635 hash = cifs_uniqueid_to_ino_t(fattr->cf_uniqueid);
636
637 inode = iget5_locked(sb, hash, cifs_find_inode, cifs_init_inode, fattr);
638
639 /* we have fattrs in hand, update the inode */
640 if (inode) {
641 cifs_fattr_to_inode(inode, fattr);
642 if (sb->s_flags & MS_NOATIME)
643 inode->i_flags |= S_NOATIME | S_NOCMTIME;
644 if (inode->i_state & I_NEW) {
645 inode->i_ino = hash;
646 unlock_new_inode(inode);
647 }
648 }
649
650 return inode;
651}
652
698/* gets root inode */ 653/* gets root inode */
699struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino) 654struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
700{ 655{
701 int xid; 656 int xid;
702 struct cifs_sb_info *cifs_sb; 657 struct cifs_sb_info *cifs_sb;
703 struct inode *inode; 658 struct inode *inode = NULL;
704 long rc; 659 long rc;
705 char *full_path; 660 char *full_path;
706 661
707 inode = iget_locked(sb, ino); 662 cifs_sb = CIFS_SB(sb);
708 if (!inode)
709 return ERR_PTR(-ENOMEM);
710 if (!(inode->i_state & I_NEW))
711 return inode;
712
713 cifs_sb = CIFS_SB(inode->i_sb);
714 full_path = cifs_build_path_to_root(cifs_sb); 663 full_path = cifs_build_path_to_root(cifs_sb);
715 if (full_path == NULL) 664 if (full_path == NULL)
716 return ERR_PTR(-ENOMEM); 665 return ERR_PTR(-ENOMEM);
717 666
718 xid = GetXid(); 667 xid = GetXid();
719 if (cifs_sb->tcon->unix_ext) 668 if (cifs_sb->tcon->unix_ext)
720 rc = cifs_get_inode_info_unix(&inode, full_path, inode->i_sb, 669 rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
721 xid);
722 else 670 else
723 rc = cifs_get_inode_info(&inode, full_path, NULL, inode->i_sb, 671 rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
724 xid, NULL); 672 xid, NULL);
673
674 if (!inode)
675 return ERR_PTR(-ENOMEM);
676
725 if (rc && cifs_sb->tcon->ipc) { 677 if (rc && cifs_sb->tcon->ipc) {
726 cFYI(1, ("ipc connection - fake read inode")); 678 cFYI(1, ("ipc connection - fake read inode"));
727 inode->i_mode |= S_IFDIR; 679 inode->i_mode |= S_IFDIR;
@@ -737,7 +689,6 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
737 return ERR_PTR(rc); 689 return ERR_PTR(rc);
738 } 690 }
739 691
740 unlock_new_inode(inode);
741 692
742 kfree(full_path); 693 kfree(full_path);
743 /* can not call macro FreeXid here since in a void func 694 /* can not call macro FreeXid here since in a void func
@@ -1063,44 +1014,6 @@ out_reval:
1063 return rc; 1014 return rc;
1064} 1015}
1065 1016
1066void posix_fill_in_inode(struct inode *tmp_inode,
1067 FILE_UNIX_BASIC_INFO *pData, int isNewInode)
1068{
1069 struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
1070 loff_t local_size;
1071 struct timespec local_mtime;
1072
1073 cifsInfo->time = jiffies;
1074 atomic_inc(&cifsInfo->inUse);
1075
1076 /* save mtime and size */
1077 local_mtime = tmp_inode->i_mtime;
1078 local_size = tmp_inode->i_size;
1079
1080 cifs_unix_info_to_inode(tmp_inode, pData, 1);
1081 cifs_set_ops(tmp_inode, false);
1082
1083 if (!S_ISREG(tmp_inode->i_mode))
1084 return;
1085
1086 /*
1087 * No sense invalidating pages for new inode
1088 * since we we have not started caching
1089 * readahead file data yet.
1090 */
1091 if (isNewInode)
1092 return;
1093
1094 if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
1095 (local_size == tmp_inode->i_size)) {
1096 cFYI(1, ("inode exists but unchanged"));
1097 } else {
1098 /* file may have changed on server */
1099 cFYI(1, ("invalidate inode, readdir detected change"));
1100 invalidate_remote_inode(tmp_inode);
1101 }
1102}
1103
1104int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) 1017int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
1105{ 1018{
1106 int rc = 0, tmprc; 1019 int rc = 0, tmprc;
@@ -1109,6 +1022,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
1109 struct cifsTconInfo *pTcon; 1022 struct cifsTconInfo *pTcon;
1110 char *full_path = NULL; 1023 char *full_path = NULL;
1111 struct inode *newinode = NULL; 1024 struct inode *newinode = NULL;
1025 struct cifs_fattr fattr;
1112 1026
1113 cFYI(1, ("In cifs_mkdir, mode = 0x%x inode = 0x%p", mode, inode)); 1027 cFYI(1, ("In cifs_mkdir, mode = 0x%x inode = 0x%p", mode, inode));
1114 1028
@@ -1148,7 +1062,6 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
1148 cFYI(1, ("posix mkdir returned 0x%x", rc)); 1062 cFYI(1, ("posix mkdir returned 0x%x", rc));
1149 d_drop(direntry); 1063 d_drop(direntry);
1150 } else { 1064 } else {
1151 __u64 unique_id;
1152 if (pInfo->Type == cpu_to_le32(-1)) { 1065 if (pInfo->Type == cpu_to_le32(-1)) {
1153 /* no return info, go query for it */ 1066 /* no return info, go query for it */
1154 kfree(pInfo); 1067 kfree(pInfo);
@@ -1162,20 +1075,15 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
1162 else 1075 else
1163 direntry->d_op = &cifs_dentry_ops; 1076 direntry->d_op = &cifs_dentry_ops;
1164 1077
1165 unique_id = le64_to_cpu(pInfo->UniqueId); 1078 cifs_unix_basic_to_fattr(&fattr, pInfo, cifs_sb);
1166 newinode = cifs_new_inode(inode->i_sb, &unique_id); 1079 newinode = cifs_iget(inode->i_sb, &fattr);
1167 if (newinode == NULL) { 1080 if (!newinode) {
1168 kfree(pInfo); 1081 kfree(pInfo);
1169 goto mkdir_get_info; 1082 goto mkdir_get_info;
1170 } 1083 }
1171 1084
1172 newinode->i_nlink = 2;
1173 d_instantiate(direntry, newinode); 1085 d_instantiate(direntry, newinode);
1174 1086
1175 /* we already checked in POSIXCreate whether
1176 frame was long enough */
1177 posix_fill_in_inode(direntry->d_inode,
1178 pInfo, 1 /* NewInode */);
1179#ifdef CONFIG_CIFS_DEBUG2 1087#ifdef CONFIG_CIFS_DEBUG2
1180 cFYI(1, ("instantiated dentry %p %s to inode %p", 1088 cFYI(1, ("instantiated dentry %p %s to inode %p",
1181 direntry, direntry->d_name.name, newinode)); 1089 direntry, direntry->d_name.name, newinode));
@@ -1238,10 +1146,10 @@ mkdir_get_info:
1238 args.uid = NO_CHANGE_64; 1146 args.uid = NO_CHANGE_64;
1239 args.gid = NO_CHANGE_64; 1147 args.gid = NO_CHANGE_64;
1240 } 1148 }
1241 CIFSSMBUnixSetInfo(xid, pTcon, full_path, &args, 1149 CIFSSMBUnixSetPathInfo(xid, pTcon, full_path, &args,
1242 cifs_sb->local_nls, 1150 cifs_sb->local_nls,
1243 cifs_sb->mnt_cifs_flags & 1151 cifs_sb->mnt_cifs_flags &
1244 CIFS_MOUNT_MAP_SPECIAL_CHR); 1152 CIFS_MOUNT_MAP_SPECIAL_CHR);
1245 } else { 1153 } else {
1246 if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) && 1154 if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
1247 (mode & S_IWUGO) == 0) { 1155 (mode & S_IWUGO) == 0) {
@@ -1622,6 +1530,7 @@ int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
1622 if (!err) { 1530 if (!err) {
1623 generic_fillattr(dentry->d_inode, stat); 1531 generic_fillattr(dentry->d_inode, stat);
1624 stat->blksize = CIFS_MAX_MSGSIZE; 1532 stat->blksize = CIFS_MAX_MSGSIZE;
1533 stat->ino = CIFS_I(dentry->d_inode)->uniqueid;
1625 } 1534 }
1626 return err; 1535 return err;
1627} 1536}
@@ -1786,6 +1695,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
1786 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); 1695 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
1787 struct cifsTconInfo *pTcon = cifs_sb->tcon; 1696 struct cifsTconInfo *pTcon = cifs_sb->tcon;
1788 struct cifs_unix_set_info_args *args = NULL; 1697 struct cifs_unix_set_info_args *args = NULL;
1698 struct cifsFileInfo *open_file;
1789 1699
1790 cFYI(1, ("setattr_unix on file %s attrs->ia_valid=0x%x", 1700 cFYI(1, ("setattr_unix on file %s attrs->ia_valid=0x%x",
1791 direntry->d_name.name, attrs->ia_valid)); 1701 direntry->d_name.name, attrs->ia_valid));
@@ -1872,10 +1782,18 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
1872 args->ctime = NO_CHANGE_64; 1782 args->ctime = NO_CHANGE_64;
1873 1783
1874 args->device = 0; 1784 args->device = 0;
1875 rc = CIFSSMBUnixSetInfo(xid, pTcon, full_path, args, 1785 open_file = find_writable_file(cifsInode);
1876 cifs_sb->local_nls, 1786 if (open_file) {
1877 cifs_sb->mnt_cifs_flags & 1787 u16 nfid = open_file->netfid;
1878 CIFS_MOUNT_MAP_SPECIAL_CHR); 1788 u32 npid = open_file->pid;
1789 rc = CIFSSMBUnixSetFileInfo(xid, pTcon, args, nfid, npid);
1790 atomic_dec(&open_file->wrtPending);
1791 } else {
1792 rc = CIFSSMBUnixSetPathInfo(xid, pTcon, full_path, args,
1793 cifs_sb->local_nls,
1794 cifs_sb->mnt_cifs_flags &
1795 CIFS_MOUNT_MAP_SPECIAL_CHR);
1796 }
1879 1797
1880 if (!rc) 1798 if (!rc)
1881 rc = inode_setattr(inode, attrs); 1799 rc = inode_setattr(inode, attrs);
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 86d0055dc529..f823a4a208a7 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -63,374 +63,123 @@ static inline void dump_cifs_file_struct(struct file *file, char *label)
63} 63}
64#endif /* DEBUG2 */ 64#endif /* DEBUG2 */
65 65
66/* Returns 1 if new inode created, 2 if both dentry and inode were */ 66/*
67/* Might check in the future if inode number changed so we can rehash inode */ 67 * Find the dentry that matches "name". If there isn't one, create one. If it's
68static int 68 * a negative dentry or the uniqueid changed, then drop it and recreate it.
69construct_dentry(struct qstr *qstring, struct file *file, 69 */
70 struct inode **ptmp_inode, struct dentry **pnew_dentry, 70static struct dentry *
71 __u64 *inum) 71cifs_readdir_lookup(struct dentry *parent, struct qstr *name,
72 struct cifs_fattr *fattr)
72{ 73{
73 struct dentry *tmp_dentry = NULL; 74 struct dentry *dentry, *alias;
74 struct super_block *sb = file->f_path.dentry->d_sb; 75 struct inode *inode;
75 int rc = 0; 76 struct super_block *sb = parent->d_inode->i_sb;
77
78 cFYI(1, ("For %s", name->name));
79
80 dentry = d_lookup(parent, name);
81 if (dentry) {
82 /* FIXME: check for inode number changes? */
83 if (dentry->d_inode != NULL)
84 return dentry;
85 d_drop(dentry);
86 dput(dentry);
87 }
76 88
77 cFYI(1, ("For %s", qstring->name)); 89 dentry = d_alloc(parent, name);
78 90 if (dentry == NULL)
79 qstring->hash = full_name_hash(qstring->name, qstring->len); 91 return NULL;
80 tmp_dentry = d_lookup(file->f_path.dentry, qstring);
81 if (tmp_dentry) {
82 /* BB: overwrite old name? i.e. tmp_dentry->d_name and
83 * tmp_dentry->d_name.len??
84 */
85 cFYI(0, ("existing dentry with inode 0x%p",
86 tmp_dentry->d_inode));
87 *ptmp_inode = tmp_dentry->d_inode;
88 if (*ptmp_inode == NULL) {
89 *ptmp_inode = cifs_new_inode(sb, inum);
90 if (*ptmp_inode == NULL)
91 return rc;
92 rc = 1;
93 }
94 } else {
95 tmp_dentry = d_alloc(file->f_path.dentry, qstring);
96 if (tmp_dentry == NULL) {
97 cERROR(1, ("Failed allocating dentry"));
98 *ptmp_inode = NULL;
99 return rc;
100 }
101 92
102 if (CIFS_SB(sb)->tcon->nocase) 93 inode = cifs_iget(sb, fattr);
103 tmp_dentry->d_op = &cifs_ci_dentry_ops; 94 if (!inode) {
104 else 95 dput(dentry);
105 tmp_dentry->d_op = &cifs_dentry_ops; 96 return NULL;
97 }
106 98
107 *ptmp_inode = cifs_new_inode(sb, inum); 99 if (CIFS_SB(sb)->tcon->nocase)
108 if (*ptmp_inode == NULL) 100 dentry->d_op = &cifs_ci_dentry_ops;
109 return rc; 101 else
110 rc = 2; 102 dentry->d_op = &cifs_dentry_ops;
103
104 alias = d_materialise_unique(dentry, inode);
105 if (alias != NULL) {
106 dput(dentry);
107 if (IS_ERR(alias))
108 return NULL;
109 dentry = alias;
111 } 110 }
112 111
113 tmp_dentry->d_time = jiffies; 112 return dentry;
114 *pnew_dentry = tmp_dentry;
115 return rc;
116} 113}
117 114
118static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, 115static void
119 char *buf, unsigned int *pobject_type, int isNewInode) 116cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
120{ 117{
121 loff_t local_size; 118 fattr->cf_uid = cifs_sb->mnt_uid;
122 struct timespec local_mtime; 119 fattr->cf_gid = cifs_sb->mnt_gid;
123
124 struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
125 struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb);
126 __u32 attr;
127 __u64 allocation_size;
128 __u64 end_of_file;
129 umode_t default_mode;
130
131 /* save mtime and size */
132 local_mtime = tmp_inode->i_mtime;
133 local_size = tmp_inode->i_size;
134
135 if (new_buf_type) {
136 FILE_DIRECTORY_INFO *pfindData = (FILE_DIRECTORY_INFO *)buf;
137
138 attr = le32_to_cpu(pfindData->ExtFileAttributes);
139 allocation_size = le64_to_cpu(pfindData->AllocationSize);
140 end_of_file = le64_to_cpu(pfindData->EndOfFile);
141 tmp_inode->i_atime =
142 cifs_NTtimeToUnix(pfindData->LastAccessTime);
143 tmp_inode->i_mtime =
144 cifs_NTtimeToUnix(pfindData->LastWriteTime);
145 tmp_inode->i_ctime =
146 cifs_NTtimeToUnix(pfindData->ChangeTime);
147 } else { /* legacy, OS2 and DOS style */
148 int offset = cifs_sb->tcon->ses->server->timeAdj;
149 FIND_FILE_STANDARD_INFO *pfindData =
150 (FIND_FILE_STANDARD_INFO *)buf;
151
152 tmp_inode->i_mtime = cnvrtDosUnixTm(pfindData->LastWriteDate,
153 pfindData->LastWriteTime,
154 offset);
155 tmp_inode->i_atime = cnvrtDosUnixTm(pfindData->LastAccessDate,
156 pfindData->LastAccessTime,
157 offset);
158 tmp_inode->i_ctime = cnvrtDosUnixTm(pfindData->LastWriteDate,
159 pfindData->LastWriteTime,
160 offset);
161 attr = le16_to_cpu(pfindData->Attributes);
162 allocation_size = le32_to_cpu(pfindData->AllocationSize);
163 end_of_file = le32_to_cpu(pfindData->DataSize);
164 }
165 120
166 /* Linux can not store file creation time unfortunately so ignore it */ 121 if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
167 122 fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
168 cifsInfo->cifsAttrs = attr; 123 fattr->cf_dtype = DT_DIR;
169#ifdef CONFIG_CIFS_EXPERIMENTAL 124 } else {
170 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { 125 fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
171 /* get more accurate mode via ACL - so force inode refresh */ 126 fattr->cf_dtype = DT_REG;
172 cifsInfo->time = 0;
173 } else
174#endif /* CONFIG_CIFS_EXPERIMENTAL */
175 cifsInfo->time = jiffies;
176
177 /* treat dos attribute of read-only as read-only mode bit e.g. 555? */
178 /* 2767 perms - indicate mandatory locking */
179 /* BB fill in uid and gid here? with help from winbind?
180 or retrieve from NTFS stream extended attribute */
181 if (atomic_read(&cifsInfo->inUse) == 0) {
182 tmp_inode->i_uid = cifs_sb->mnt_uid;
183 tmp_inode->i_gid = cifs_sb->mnt_gid;
184 }
185
186 if (attr & ATTR_DIRECTORY)
187 default_mode = cifs_sb->mnt_dir_mode;
188 else
189 default_mode = cifs_sb->mnt_file_mode;
190
191 /* set initial permissions */
192 if ((atomic_read(&cifsInfo->inUse) == 0) ||
193 (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
194 tmp_inode->i_mode = default_mode;
195 else {
196 /* just reenable write bits if !ATTR_READONLY */
197 if ((tmp_inode->i_mode & S_IWUGO) == 0 &&
198 (attr & ATTR_READONLY) == 0)
199 tmp_inode->i_mode |= (S_IWUGO & default_mode);
200
201 tmp_inode->i_mode &= ~S_IFMT;
202 } 127 }
203 128
204 /* clear write bits if ATTR_READONLY is set */ 129 if (fattr->cf_cifsattrs & ATTR_READONLY)
205 if (attr & ATTR_READONLY) 130 fattr->cf_mode &= ~S_IWUGO;
206 tmp_inode->i_mode &= ~S_IWUGO;
207 131
208 /* set inode type */ 132 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL &&
209 if ((attr & ATTR_SYSTEM) && 133 fattr->cf_cifsattrs & ATTR_SYSTEM) {
210 (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) { 134 if (fattr->cf_eof == 0) {
211 if (end_of_file == 0) { 135 fattr->cf_mode &= ~S_IFMT;
212 tmp_inode->i_mode |= S_IFIFO; 136 fattr->cf_mode |= S_IFIFO;
213 *pobject_type = DT_FIFO; 137 fattr->cf_dtype = DT_FIFO;
214 } else { 138 } else {
215 /* 139 /*
216 * trying to get the type can be slow, so just call 140 * trying to get the type and mode via SFU can be slow,
217 * this a regular file for now, and mark for reval 141 * so just call those regular files for now, and mark
142 * for reval
218 */ 143 */
219 tmp_inode->i_mode |= S_IFREG; 144 fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
220 *pobject_type = DT_REG;
221 cifsInfo->time = 0;
222 }
223 } else {
224 if (attr & ATTR_DIRECTORY) {
225 tmp_inode->i_mode |= S_IFDIR;
226 *pobject_type = DT_DIR;
227 } else {
228 tmp_inode->i_mode |= S_IFREG;
229 *pobject_type = DT_REG;
230 } 145 }
231 } 146 }
147}
232 148
233 /* can not fill in nlink here as in qpathinfo version and Unx search */ 149void
234 if (atomic_read(&cifsInfo->inUse) == 0) 150cifs_dir_info_to_fattr(struct cifs_fattr *fattr, FILE_DIRECTORY_INFO *info,
235 atomic_set(&cifsInfo->inUse, 1); 151 struct cifs_sb_info *cifs_sb)
236 152{
237 cifsInfo->server_eof = end_of_file; 153 memset(fattr, 0, sizeof(*fattr));
238 spin_lock(&tmp_inode->i_lock); 154 fattr->cf_cifsattrs = le32_to_cpu(info->ExtFileAttributes);
239 if (is_size_safe_to_change(cifsInfo, end_of_file)) { 155 fattr->cf_eof = le64_to_cpu(info->EndOfFile);
240 /* can not safely change the file size here if the 156 fattr->cf_bytes = le64_to_cpu(info->AllocationSize);
241 client is writing to it due to potential races */ 157 fattr->cf_atime = cifs_NTtimeToUnix(info->LastAccessTime);
242 i_size_write(tmp_inode, end_of_file); 158 fattr->cf_ctime = cifs_NTtimeToUnix(info->ChangeTime);
243 159 fattr->cf_mtime = cifs_NTtimeToUnix(info->LastWriteTime);
244 /* 512 bytes (2**9) is the fake blocksize that must be used */ 160
245 /* for this calculation, even though the reported blocksize is larger */ 161 cifs_fill_common_info(fattr, cifs_sb);
246 tmp_inode->i_blocks = (512 - 1 + allocation_size) >> 9;
247 }
248 spin_unlock(&tmp_inode->i_lock);
249
250 if (allocation_size < end_of_file)
251 cFYI(1, ("May be sparse file, allocation less than file size"));
252 cFYI(1, ("File Size %ld and blocks %llu",
253 (unsigned long)tmp_inode->i_size,
254 (unsigned long long)tmp_inode->i_blocks));
255 if (S_ISREG(tmp_inode->i_mode)) {
256 cFYI(1, ("File inode"));
257 tmp_inode->i_op = &cifs_file_inode_ops;
258 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
259 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
260 tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
261 else
262 tmp_inode->i_fop = &cifs_file_direct_ops;
263 } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
264 tmp_inode->i_fop = &cifs_file_nobrl_ops;
265 else
266 tmp_inode->i_fop = &cifs_file_ops;
267
268 if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
269 (cifs_sb->tcon->ses->server->maxBuf <
270 PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE))
271 tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
272 else
273 tmp_inode->i_data.a_ops = &cifs_addr_ops;
274
275 if (isNewInode)
276 return; /* No sense invalidating pages for new inode
277 since have not started caching readahead file
278 data yet */
279
280 if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
281 (local_size == tmp_inode->i_size)) {
282 cFYI(1, ("inode exists but unchanged"));
283 } else {
284 /* file may have changed on server */
285 cFYI(1, ("invalidate inode, readdir detected change"));
286 invalidate_remote_inode(tmp_inode);
287 }
288 } else if (S_ISDIR(tmp_inode->i_mode)) {
289 cFYI(1, ("Directory inode"));
290 tmp_inode->i_op = &cifs_dir_inode_ops;
291 tmp_inode->i_fop = &cifs_dir_ops;
292 } else if (S_ISLNK(tmp_inode->i_mode)) {
293 cFYI(1, ("Symbolic Link inode"));
294 tmp_inode->i_op = &cifs_symlink_inode_ops;
295 } else {
296 cFYI(1, ("Init special inode"));
297 init_special_inode(tmp_inode, tmp_inode->i_mode,
298 tmp_inode->i_rdev);
299 }
300} 162}
301 163
302static void unix_fill_in_inode(struct inode *tmp_inode, 164void
303 FILE_UNIX_INFO *pfindData, unsigned int *pobject_type, int isNewInode) 165cifs_std_info_to_fattr(struct cifs_fattr *fattr, FIND_FILE_STANDARD_INFO *info,
166 struct cifs_sb_info *cifs_sb)
304{ 167{
305 loff_t local_size; 168 int offset = cifs_sb->tcon->ses->server->timeAdj;
306 struct timespec local_mtime;
307
308 struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
309 struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb);
310
311 __u32 type = le32_to_cpu(pfindData->Type);
312 __u64 num_of_bytes = le64_to_cpu(pfindData->NumOfBytes);
313 __u64 end_of_file = le64_to_cpu(pfindData->EndOfFile);
314 cifsInfo->time = jiffies;
315 atomic_inc(&cifsInfo->inUse);
316
317 /* save mtime and size */
318 local_mtime = tmp_inode->i_mtime;
319 local_size = tmp_inode->i_size;
320
321 tmp_inode->i_atime =
322 cifs_NTtimeToUnix(pfindData->LastAccessTime);
323 tmp_inode->i_mtime =
324 cifs_NTtimeToUnix(pfindData->LastModificationTime);
325 tmp_inode->i_ctime =
326 cifs_NTtimeToUnix(pfindData->LastStatusChange);
327
328 tmp_inode->i_mode = le64_to_cpu(pfindData->Permissions);
329 /* since we set the inode type below we need to mask off type
330 to avoid strange results if bits above were corrupt */
331 tmp_inode->i_mode &= ~S_IFMT;
332 if (type == UNIX_FILE) {
333 *pobject_type = DT_REG;
334 tmp_inode->i_mode |= S_IFREG;
335 } else if (type == UNIX_SYMLINK) {
336 *pobject_type = DT_LNK;
337 tmp_inode->i_mode |= S_IFLNK;
338 } else if (type == UNIX_DIR) {
339 *pobject_type = DT_DIR;
340 tmp_inode->i_mode |= S_IFDIR;
341 } else if (type == UNIX_CHARDEV) {
342 *pobject_type = DT_CHR;
343 tmp_inode->i_mode |= S_IFCHR;
344 tmp_inode->i_rdev = MKDEV(le64_to_cpu(pfindData->DevMajor),
345 le64_to_cpu(pfindData->DevMinor) & MINORMASK);
346 } else if (type == UNIX_BLOCKDEV) {
347 *pobject_type = DT_BLK;
348 tmp_inode->i_mode |= S_IFBLK;
349 tmp_inode->i_rdev = MKDEV(le64_to_cpu(pfindData->DevMajor),
350 le64_to_cpu(pfindData->DevMinor) & MINORMASK);
351 } else if (type == UNIX_FIFO) {
352 *pobject_type = DT_FIFO;
353 tmp_inode->i_mode |= S_IFIFO;
354 } else if (type == UNIX_SOCKET) {
355 *pobject_type = DT_SOCK;
356 tmp_inode->i_mode |= S_IFSOCK;
357 } else {
358 /* safest to just call it a file */
359 *pobject_type = DT_REG;
360 tmp_inode->i_mode |= S_IFREG;
361 cFYI(1, ("unknown inode type %d", type));
362 }
363 169
364 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) 170 memset(fattr, 0, sizeof(*fattr));
365 tmp_inode->i_uid = cifs_sb->mnt_uid; 171 fattr->cf_atime = cnvrtDosUnixTm(info->LastAccessDate,
366 else 172 info->LastAccessTime, offset);
367 tmp_inode->i_uid = le64_to_cpu(pfindData->Uid); 173 fattr->cf_ctime = cnvrtDosUnixTm(info->LastWriteDate,
368 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) 174 info->LastWriteTime, offset);
369 tmp_inode->i_gid = cifs_sb->mnt_gid; 175 fattr->cf_mtime = cnvrtDosUnixTm(info->LastWriteDate,
370 else 176 info->LastWriteTime, offset);
371 tmp_inode->i_gid = le64_to_cpu(pfindData->Gid);
372 tmp_inode->i_nlink = le64_to_cpu(pfindData->Nlinks);
373
374 cifsInfo->server_eof = end_of_file;
375 spin_lock(&tmp_inode->i_lock);
376 if (is_size_safe_to_change(cifsInfo, end_of_file)) {
377 /* can not safely change the file size here if the
378 client is writing to it due to potential races */
379 i_size_write(tmp_inode, end_of_file);
380
381 /* 512 bytes (2**9) is the fake blocksize that must be used */
382 /* for this calculation, not the real blocksize */
383 tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
384 }
385 spin_unlock(&tmp_inode->i_lock);
386 177
387 if (S_ISREG(tmp_inode->i_mode)) { 178 fattr->cf_cifsattrs = le16_to_cpu(info->Attributes);
388 cFYI(1, ("File inode")); 179 fattr->cf_bytes = le32_to_cpu(info->AllocationSize);
389 tmp_inode->i_op = &cifs_file_inode_ops; 180 fattr->cf_eof = le32_to_cpu(info->DataSize);
390 181
391 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { 182 cifs_fill_common_info(fattr, cifs_sb);
392 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
393 tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
394 else
395 tmp_inode->i_fop = &cifs_file_direct_ops;
396 } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
397 tmp_inode->i_fop = &cifs_file_nobrl_ops;
398 else
399 tmp_inode->i_fop = &cifs_file_ops;
400
401 if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
402 (cifs_sb->tcon->ses->server->maxBuf <
403 PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE))
404 tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
405 else
406 tmp_inode->i_data.a_ops = &cifs_addr_ops;
407
408 if (isNewInode)
409 return; /* No sense invalidating pages for new inode
410 since we have not started caching readahead
411 file data for it yet */
412
413 if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
414 (local_size == tmp_inode->i_size)) {
415 cFYI(1, ("inode exists but unchanged"));
416 } else {
417 /* file may have changed on server */
418 cFYI(1, ("invalidate inode, readdir detected change"));
419 invalidate_remote_inode(tmp_inode);
420 }
421 } else if (S_ISDIR(tmp_inode->i_mode)) {
422 cFYI(1, ("Directory inode"));
423 tmp_inode->i_op = &cifs_dir_inode_ops;
424 tmp_inode->i_fop = &cifs_dir_ops;
425 } else if (S_ISLNK(tmp_inode->i_mode)) {
426 cFYI(1, ("Symbolic Link inode"));
427 tmp_inode->i_op = &cifs_symlink_inode_ops;
428/* tmp_inode->i_fop = *//* do not need to set to anything */
429 } else {
430 cFYI(1, ("Special inode"));
431 init_special_inode(tmp_inode, tmp_inode->i_mode,
432 tmp_inode->i_rdev);
433 }
434} 183}
435 184
436/* BB eventually need to add the following helper function to 185/* BB eventually need to add the following helper function to
@@ -872,7 +621,7 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst,
872 len = strnlen(filename, PATH_MAX); 621 len = strnlen(filename, PATH_MAX);
873 } 622 }
874 623
875 *pinum = le64_to_cpu(pFindData->UniqueId); 624 *pinum = le64_to_cpu(pFindData->basic.UniqueId);
876 } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { 625 } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) {
877 FILE_DIRECTORY_INFO *pFindData = 626 FILE_DIRECTORY_INFO *pFindData =
878 (FILE_DIRECTORY_INFO *)current_entry; 627 (FILE_DIRECTORY_INFO *)current_entry;
@@ -932,11 +681,12 @@ static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir,
932 int rc = 0; 681 int rc = 0;
933 struct qstr qstring; 682 struct qstr qstring;
934 struct cifsFileInfo *pCifsF; 683 struct cifsFileInfo *pCifsF;
935 unsigned int obj_type; 684 u64 inum;
936 __u64 inum; 685 ino_t ino;
686 struct super_block *sb;
937 struct cifs_sb_info *cifs_sb; 687 struct cifs_sb_info *cifs_sb;
938 struct inode *tmp_inode;
939 struct dentry *tmp_dentry; 688 struct dentry *tmp_dentry;
689 struct cifs_fattr fattr;
940 690
941 /* get filename and len into qstring */ 691 /* get filename and len into qstring */
942 /* get dentry */ 692 /* get dentry */
@@ -954,60 +704,53 @@ static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir,
954 if (rc != 0) 704 if (rc != 0)
955 return 0; 705 return 0;
956 706
957 cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); 707 sb = file->f_path.dentry->d_sb;
708 cifs_sb = CIFS_SB(sb);
958 709
959 qstring.name = scratch_buf; 710 qstring.name = scratch_buf;
960 rc = cifs_get_name_from_search_buf(&qstring, pfindEntry, 711 rc = cifs_get_name_from_search_buf(&qstring, pfindEntry,
961 pCifsF->srch_inf.info_level, 712 pCifsF->srch_inf.info_level,
962 pCifsF->srch_inf.unicode, cifs_sb, 713 pCifsF->srch_inf.unicode, cifs_sb,
963 max_len, 714 max_len, &inum /* returned */);
964 &inum /* returned */);
965 715
966 if (rc) 716 if (rc)
967 return rc; 717 return rc;
968 718
969 /* only these two infolevels return valid inode numbers */
970 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX ||
971 pCifsF->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO)
972 rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
973 &inum);
974 else
975 rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
976 NULL);
977
978 if ((tmp_inode == NULL) || (tmp_dentry == NULL))
979 return -ENOMEM;
980
981 /* we pass in rc below, indicating whether it is a new inode,
982 so we can figure out whether to invalidate the inode cached
983 data if the file has changed */
984 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) 719 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX)
985 unix_fill_in_inode(tmp_inode, 720 cifs_unix_basic_to_fattr(&fattr,
986 (FILE_UNIX_INFO *)pfindEntry, 721 &((FILE_UNIX_INFO *) pfindEntry)->basic,
987 &obj_type, rc); 722 cifs_sb);
988 else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) 723 else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD)
989 fill_in_inode(tmp_inode, 0 /* old level 1 buffer type */, 724 cifs_std_info_to_fattr(&fattr, (FIND_FILE_STANDARD_INFO *)
990 pfindEntry, &obj_type, rc); 725 pfindEntry, cifs_sb);
991 else 726 else
992 fill_in_inode(tmp_inode, 1 /* NT */, pfindEntry, &obj_type, rc); 727 cifs_dir_info_to_fattr(&fattr, (FILE_DIRECTORY_INFO *)
728 pfindEntry, cifs_sb);
993 729
994 if (rc) /* new inode - needs to be tied to dentry */ { 730 /* FIXME: make _to_fattr functions fill this out */
995 d_instantiate(tmp_dentry, tmp_inode); 731 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO)
996 if (rc == 2) 732 fattr.cf_uniqueid = inum;
997 d_rehash(tmp_dentry); 733 else
998 } 734 fattr.cf_uniqueid = iunique(sb, ROOT_I);
999 735
736 ino = cifs_uniqueid_to_ino_t(fattr.cf_uniqueid);
737 tmp_dentry = cifs_readdir_lookup(file->f_dentry, &qstring, &fattr);
1000 738
1001 rc = filldir(direntry, qstring.name, qstring.len, file->f_pos, 739 rc = filldir(direntry, qstring.name, qstring.len, file->f_pos,
1002 tmp_inode->i_ino, obj_type); 740 ino, fattr.cf_dtype);
741
742 /*
743 * we can not return filldir errors to the caller since they are
744 * "normal" when the stat blocksize is too small - we return remapped
745 * error instead
746 *
747 * FIXME: This looks bogus. filldir returns -EOVERFLOW in the above
748 * case already. Why should we be clobbering other errors from it?
749 */
1003 if (rc) { 750 if (rc) {
1004 cFYI(1, ("filldir rc = %d", rc)); 751 cFYI(1, ("filldir rc = %d", rc));
1005 /* we can not return filldir errors to the caller
1006 since they are "normal" when the stat blocksize
1007 is too small - we return remapped error instead */
1008 rc = -EOVERFLOW; 752 rc = -EOVERFLOW;
1009 } 753 }
1010
1011 dput(tmp_dentry); 754 dput(tmp_dentry);
1012 return rc; 755 return rc;
1013} 756}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 17:05:26 -0500