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-rw-r--r--fs/cifs/readdir.c375
1 files changed, 190 insertions, 185 deletions
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index c08bda9fcac..916df943133 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -2,7 +2,7 @@
* fs/cifs/readdir.c
*
* Directory search handling
- *
+ *
* Copyright (C) International Business Machines Corp., 2004, 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
@@ -34,24 +34,23 @@
#ifdef CONFIG_CIFS_DEBUG2
static void dump_cifs_file_struct(struct file *file, char *label)
{
- struct cifsFileInfo * cf;
+ struct cifsFileInfo *cf;
if (file) {
cf = file->private_data;
if (cf == NULL) {
- cFYI(1,("empty cifs private file data"));
+ cFYI(1, ("empty cifs private file data"));
return;
}
if (cf->invalidHandle) {
- cFYI(1,("invalid handle"));
+ cFYI(1, ("invalid handle"));
}
if (cf->srch_inf.endOfSearch) {
- cFYI(1,("end of search"));
+ cFYI(1, ("end of search"));
}
if (cf->srch_inf.emptyDir) {
- cFYI(1,("empty dir"));
+ cFYI(1, ("empty dir"));
}
-
}
}
#endif /* DEBUG2 */
@@ -73,7 +72,8 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
qstring->hash = full_name_hash(qstring->name, qstring->len);
tmp_dentry = d_lookup(file->f_path.dentry, qstring);
if (tmp_dentry) {
- cFYI(0, ("existing dentry with inode 0x%p", tmp_dentry->d_inode));
+ cFYI(0, ("existing dentry with inode 0x%p",
+ tmp_dentry->d_inode));
*ptmp_inode = tmp_dentry->d_inode;
/* BB overwrite old name? i.e. tmp_dentry->d_name and tmp_dentry->d_name.len??*/
if (*ptmp_inode == NULL) {
@@ -87,7 +87,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
} else {
tmp_dentry = d_alloc(file->f_path.dentry, qstring);
if (tmp_dentry == NULL) {
- cERROR(1,("Failed allocating dentry"));
+ cERROR(1, ("Failed allocating dentry"));
*ptmp_inode = NULL;
return rc;
}
@@ -100,7 +100,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
if (*ptmp_inode == NULL)
return rc;
if (file->f_path.dentry->d_sb->s_flags & MS_NOATIME)
- (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME;
+ (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME;
rc = 2;
}
@@ -109,7 +109,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
return rc;
}
-static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode)
+static void AdjustForTZ(struct cifsTconInfo *tcon, struct inode *inode)
{
if ((tcon) && (tcon->ses) && (tcon->ses->server)) {
inode->i_ctime.tv_sec += tcon->ses->server->timeAdj;
@@ -121,7 +121,7 @@ static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode)
static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
- char * buf, int *pobject_type, int isNewInode)
+ char *buf, int *pobject_type, int isNewInode)
{
loff_t local_size;
struct timespec local_mtime;
@@ -150,7 +150,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
} else { /* legacy, OS2 and DOS style */
/* struct timespec ts;*/
- FIND_FILE_STANDARD_INFO * pfindData =
+ FIND_FILE_STANDARD_INFO * pfindData =
(FIND_FILE_STANDARD_INFO *)buf;
tmp_inode->i_mtime = cnvrtDosUnixTm(
@@ -175,7 +175,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
/* treat dos attribute of read-only as read-only mode bit e.g. 555? */
/* 2767 perms - indicate mandatory locking */
- /* BB fill in uid and gid here? with help from winbind?
+ /* BB fill in uid and gid here? with help from winbind?
or retrieve from NTFS stream extended attribute */
if (atomic_read(&cifsInfo->inUse) == 0) {
tmp_inode->i_uid = cifs_sb->mnt_uid;
@@ -196,7 +196,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
tmp_inode->i_mode = cifs_sb->mnt_dir_mode;
}
tmp_inode->i_mode |= S_IFDIR;
- } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
+ } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
(attr & ATTR_SYSTEM)) {
if (end_of_file == 0) {
*pobject_type = DT_FIFO;
@@ -206,13 +206,13 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
inode as needing revalidate and get the real type
(blk vs chr vs. symlink) later ie in lookup */
*pobject_type = DT_REG;
- tmp_inode->i_mode |= S_IFREG;
- cifsInfo->time = 0;
+ tmp_inode->i_mode |= S_IFREG;
+ cifsInfo->time = 0;
}
/* we no longer mark these because we could not follow them */
/* } else if (attr & ATTR_REPARSE) {
- *pobject_type = DT_LNK;
- tmp_inode->i_mode |= S_IFLNK; */
+ *pobject_type = DT_LNK;
+ tmp_inode->i_mode |= S_IFLNK; */
} else {
*pobject_type = DT_REG;
tmp_inode->i_mode |= S_IFREG;
@@ -220,7 +220,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
tmp_inode->i_mode &= ~(S_IWUGO);
else if ((tmp_inode->i_mode & S_IWUGO) == 0)
/* the ATTR_READONLY flag may have been changed on */
- /* server -- set any w bits allowed by mnt_file_mode */
+ /* server -- set any w bits allowed by mnt_file_mode */
tmp_inode->i_mode |= (S_IWUGO & cifs_sb->mnt_file_mode);
} /* could add code here - to validate if device or weird share type? */
@@ -231,7 +231,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
spin_lock(&tmp_inode->i_lock);
if (is_size_safe_to_change(cifsInfo, end_of_file)) {
- /* can not safely change the file size here if the
+ /* can not safely change the file size here if the
client is writing to it due to potential races */
i_size_write(tmp_inode, end_of_file);
@@ -254,7 +254,6 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
else
tmp_inode->i_fop = &cifs_file_direct_ops;
-
} else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
tmp_inode->i_fop = &cifs_file_nobrl_ops;
else
@@ -322,8 +321,8 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
tmp_inode->i_mode = le64_to_cpu(pfindData->Permissions);
/* since we set the inode type below we need to mask off type
- to avoid strange results if bits above were corrupt */
- tmp_inode->i_mode &= ~S_IFMT;
+ to avoid strange results if bits above were corrupt */
+ tmp_inode->i_mode &= ~S_IFMT;
if (type == UNIX_FILE) {
*pobject_type = DT_REG;
tmp_inode->i_mode |= S_IFREG;
@@ -353,7 +352,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
/* safest to just call it a file */
*pobject_type = DT_REG;
tmp_inode->i_mode |= S_IFREG;
- cFYI(1,("unknown inode type %d",type));
+ cFYI(1, ("unknown inode type %d", type));
}
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID)
@@ -368,7 +367,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
spin_lock(&tmp_inode->i_lock);
if (is_size_safe_to_change(cifsInfo, end_of_file)) {
- /* can not safely change the file size here if the
+ /* can not safely change the file size here if the
client is writing to it due to potential races */
i_size_write(tmp_inode, end_of_file);
@@ -393,15 +392,16 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
tmp_inode->i_fop = &cifs_file_ops;
if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
- (cifs_sb->tcon->ses->server->maxBuf <
+ (cifs_sb->tcon->ses->server->maxBuf <
PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE))
tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
else
tmp_inode->i_data.a_ops = &cifs_addr_ops;
if (isNewInode)
- return; /* No sense invalidating pages for new inode since we
- have not started caching readahead file data yet */
+ return; /* No sense invalidating pages for new inode
+ since we have not started caching readahead
+ file data for it yet */
if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
(local_size == tmp_inode->i_size)) {
@@ -420,7 +420,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
tmp_inode->i_op = &cifs_symlink_inode_ops;
/* tmp_inode->i_fop = *//* do not need to set to anything */
} else {
- cFYI(1, ("Special inode"));
+ cFYI(1, ("Special inode"));
init_special_inode(tmp_inode, tmp_inode->i_mode,
tmp_inode->i_rdev);
}
@@ -429,14 +429,14 @@ static void unix_fill_in_inode(struct inode *tmp_inode,
static int initiate_cifs_search(const int xid, struct file *file)
{
int rc = 0;
- char * full_path;
- struct cifsFileInfo * cifsFile;
+ char *full_path;
+ struct cifsFileInfo *cifsFile;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
if (file->private_data == NULL) {
- file->private_data =
- kzalloc(sizeof(struct cifsFileInfo),GFP_KERNEL);
+ file->private_data =
+ kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
}
if (file->private_data == NULL)
@@ -463,9 +463,11 @@ static int initiate_cifs_search(const int xid, struct file *file)
ffirst_retry:
/* test for Unix extensions */
- if (pTcon->ses->capabilities & CAP_UNIX) {
+ /* but now check for them on the share/mount not on the SMB session */
+/* if (pTcon->ses->capabilities & CAP_UNIX) { */
+ if (pTcon->unix_ext) {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX;
- } else if ((pTcon->ses->capabilities &
+ } else if ((pTcon->ses->capabilities &
(CAP_NT_SMBS | CAP_NT_FIND)) == 0) {
cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD;
} else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
@@ -474,13 +476,13 @@ ffirst_retry:
cifsFile->srch_inf.info_level = SMB_FIND_FILE_DIRECTORY_INFO;
}
- rc = CIFSFindFirst(xid, pTcon,full_path,cifs_sb->local_nls,
+ rc = CIFSFindFirst(xid, pTcon, full_path, cifs_sb->local_nls,
&cifsFile->netfid, &cifsFile->srch_inf,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb));
if (rc == 0)
cifsFile->invalidHandle = FALSE;
- if ((rc == -EOPNOTSUPP) &&
+ if ((rc == -EOPNOTSUPP) &&
(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM;
goto ffirst_retry;
@@ -495,17 +497,17 @@ static int cifs_unicode_bytelen(char *str)
int len;
__le16 * ustr = (__le16 *)str;
- for(len=0;len <= PATH_MAX;len++) {
+ for (len = 0; len <= PATH_MAX; len++) {
if (ustr[len] == 0)
return len << 1;
}
- cFYI(1,("Unicode string longer than PATH_MAX found"));
+ cFYI(1, ("Unicode string longer than PATH_MAX found"));
return len << 1;
}
static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
{
- char * new_entry;
+ char *new_entry;
FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry;
if (level == SMB_FIND_FILE_INFO_STANDARD) {
@@ -516,21 +518,21 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
pfData->FileNameLength;
} else
new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset);
- cFYI(1,("new entry %p old entry %p",new_entry,old_entry));
+ cFYI(1, ("new entry %p old entry %p", new_entry, old_entry));
/* validate that new_entry is not past end of SMB */
if (new_entry >= end_of_smb) {
cERROR(1,
("search entry %p began after end of SMB %p old entry %p",
- new_entry, end_of_smb, old_entry));
+ new_entry, end_of_smb, old_entry));
return NULL;
} else if (((level == SMB_FIND_FILE_INFO_STANDARD) &&
- (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb)) ||
- ((level != SMB_FIND_FILE_INFO_STANDARD) &&
+ (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb))
+ || ((level != SMB_FIND_FILE_INFO_STANDARD) &&
(new_entry + sizeof(FILE_DIRECTORY_INFO) > end_of_smb))) {
- cERROR(1,("search entry %p extends after end of SMB %p",
+ cERROR(1, ("search entry %p extends after end of SMB %p",
new_entry, end_of_smb));
return NULL;
- } else
+ } else
return new_entry;
}
@@ -541,8 +543,8 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
{
int rc = 0;
- char * filename = NULL;
- int len = 0;
+ char *filename = NULL;
+ int len = 0;
if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) {
FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry;
@@ -554,25 +556,25 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
len = strnlen(filename, 5);
}
} else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) {
- FILE_DIRECTORY_INFO * pFindData =
+ FILE_DIRECTORY_INFO * pFindData =
(FILE_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
- } else if (cfile->srch_inf.info_level ==
+ } else if (cfile->srch_inf.info_level ==
SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
- FILE_FULL_DIRECTORY_INFO * pFindData =
+ FILE_FULL_DIRECTORY_INFO * pFindData =
(FILE_FULL_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
} else if (cfile->srch_inf.info_level ==
SMB_FIND_FILE_ID_FULL_DIR_INFO) {
- SEARCH_ID_FULL_DIR_INFO * pFindData =
+ SEARCH_ID_FULL_DIR_INFO * pFindData =
(SEARCH_ID_FULL_DIR_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
- } else if (cfile->srch_inf.info_level ==
+ } else if (cfile->srch_inf.info_level ==
SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
- FILE_BOTH_DIRECTORY_INFO * pFindData =
+ FILE_BOTH_DIRECTORY_INFO * pFindData =
(FILE_BOTH_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
@@ -582,7 +584,8 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
filename = &pFindData->FileName[0];
len = pFindData->FileNameLength;
} else {
- cFYI(1,("Unknown findfirst level %d",cfile->srch_inf.info_level));
+ cFYI(1, ("Unknown findfirst level %d",
+ cfile->srch_inf.info_level));
}
if (filename) {
@@ -595,15 +598,15 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
} else if (len == 4) {
/* check for .. */
if ((ufilename[0] == UNICODE_DOT)
- &&(ufilename[1] == UNICODE_DOT))
+ && (ufilename[1] == UNICODE_DOT))
rc = 2;
}
} else /* ASCII */ {
if (len == 1) {
- if (filename[0] == '.')
+ if (filename[0] == '.')
rc = 1;
} else if (len == 2) {
- if((filename[0] == '.') && (filename[1] == '.'))
+ if ((filename[0] == '.') && (filename[1] == '.'))
rc = 2;
}
}
@@ -614,7 +617,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
/* Check if directory that we are searching has changed so we can decide
whether we can use the cached search results from the previous search */
-static int is_dir_changed(struct file * file)
+static int is_dir_changed(struct file *file)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct cifsInodeInfo *cifsInfo = CIFS_I(inode);
@@ -633,22 +636,22 @@ static int is_dir_changed(struct file * file)
/* We start counting in the buffer with entry 2 and increment for every
entry (do not increment for . or .. entry) */
static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
- struct file *file, char **ppCurrentEntry, int *num_to_ret)
+ struct file *file, char **ppCurrentEntry, int *num_to_ret)
{
int rc = 0;
int pos_in_buf = 0;
loff_t first_entry_in_buffer;
loff_t index_to_find = file->f_pos;
- struct cifsFileInfo * cifsFile = file->private_data;
+ struct cifsFileInfo *cifsFile = file->private_data;
/* check if index in the buffer */
-
- if ((cifsFile == NULL) || (ppCurrentEntry == NULL) ||
+
+ if ((cifsFile == NULL) || (ppCurrentEntry == NULL) ||
(num_to_ret == NULL))
return -ENOENT;
-
+
*ppCurrentEntry = NULL;
- first_entry_in_buffer =
- cifsFile->srch_inf.index_of_last_entry -
+ first_entry_in_buffer =
+ cifsFile->srch_inf.index_of_last_entry -
cifsFile->srch_inf.entries_in_buffer;
/* if first entry in buf is zero then is first buffer
@@ -660,17 +663,17 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
#ifdef CONFIG_CIFS_DEBUG2
dump_cifs_file_struct(file, "In fce ");
#endif
- if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) &&
- is_dir_changed(file)) ||
+ if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) &&
+ is_dir_changed(file)) ||
(index_to_find < first_entry_in_buffer)) {
/* close and restart search */
- cFYI(1,("search backing up - close and restart search"));
+ cFYI(1, ("search backing up - close and restart search"));
cifsFile->invalidHandle = TRUE;
CIFSFindClose(xid, pTcon, cifsFile->netfid);
kfree(cifsFile->search_resume_name);
cifsFile->search_resume_name = NULL;
if (cifsFile->srch_inf.ntwrk_buf_start) {
- cFYI(1,("freeing SMB ff cache buf on search rewind"));
+ cFYI(1, ("freeing SMB ff cache buf on search rewind"));
if (cifsFile->srch_inf.smallBuf)
cifs_small_buf_release(cifsFile->srch_inf.
ntwrk_buf_start);
@@ -678,17 +681,18 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
cifs_buf_release(cifsFile->srch_inf.
ntwrk_buf_start);
}
- rc = initiate_cifs_search(xid,file);
+ rc = initiate_cifs_search(xid, file);
if (rc) {
- cFYI(1,("error %d reinitiating a search on rewind",rc));
+ cFYI(1, ("error %d reinitiating a search on rewind",
+ rc));
return rc;
}
}
- while((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
- (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)){
- cFYI(1,("calling findnext2"));
- rc = CIFSFindNext(xid,pTcon,cifsFile->netfid,
+ while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
+ (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)) {
+ cFYI(1, ("calling findnext2"));
+ rc = CIFSFindNext(xid, pTcon, cifsFile->netfid,
&cifsFile->srch_inf);
if (rc)
return -ENOENT;
@@ -697,8 +701,8 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
/* we found the buffer that contains the entry */
/* scan and find it */
int i;
- char * current_entry;
- char * end_of_smb = cifsFile->srch_inf.ntwrk_buf_start +
+ char *current_entry;
+ char *end_of_smb = cifsFile->srch_inf.ntwrk_buf_start +
smbCalcSize((struct smb_hdr *)
cifsFile->srch_inf.ntwrk_buf_start);
@@ -706,28 +710,28 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
first_entry_in_buffer = cifsFile->srch_inf.index_of_last_entry
- cifsFile->srch_inf.entries_in_buffer;
pos_in_buf = index_to_find - first_entry_in_buffer;
- cFYI(1,("found entry - pos_in_buf %d",pos_in_buf));
+ cFYI(1, ("found entry - pos_in_buf %d", pos_in_buf));
- for(i=0;(i<(pos_in_buf)) && (current_entry != NULL);i++) {
+ for (i=0; (i < (pos_in_buf)) && (current_entry != NULL); i++) {
/* go entry by entry figuring out which is first */
- current_entry = nxt_dir_entry(current_entry,end_of_smb,
+ current_entry = nxt_dir_entry(current_entry, end_of_smb,
cifsFile->srch_inf.info_level);
}
- if((current_entry == NULL) && (i < pos_in_buf)) {
+ if ((current_entry == NULL) && (i < pos_in_buf)) {
/* BB fixme - check if we should flag this error */
- cERROR(1,("reached end of buf searching for pos in buf"
+ cERROR(1, ("reached end of buf searching for pos in buf"
" %d index to find %lld rc %d",
- pos_in_buf,index_to_find,rc));
+ pos_in_buf, index_to_find, rc));
}
rc = 0;
*ppCurrentEntry = current_entry;
} else {
- cFYI(1,("index not in buffer - could not findnext into it"));
+ cFYI(1, ("index not in buffer - could not findnext into it"));
return 0;
}
- if(pos_in_buf >= cifsFile->srch_inf.entries_in_buffer) {
- cFYI(1,("can not return entries pos_in_buf beyond last entry"));
+ if (pos_in_buf >= cifsFile->srch_inf.entries_in_buffer) {
+ cFYI(1, ("can not return entries pos_in_buf beyond last"));
*num_to_ret = 0;
} else
*num_to_ret = cifsFile->srch_inf.entries_in_buffer - pos_in_buf;
@@ -738,81 +742,81 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
/* inode num, inode type and filename returned */
static int cifs_get_name_from_search_buf(struct qstr *pqst,
char *current_entry, __u16 level, unsigned int unicode,
- struct cifs_sb_info * cifs_sb, int max_len, ino_t *pinum)
+ struct cifs_sb_info *cifs_sb, int max_len, ino_t *pinum)
{
int rc = 0;
unsigned int len = 0;
- char * filename;
- struct nls_table * nlt = cifs_sb->local_nls;
+ char *filename;
+ struct nls_table *nlt = cifs_sb->local_nls;
*pinum = 0;
- if(level == SMB_FIND_FILE_UNIX) {
- FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry;
+ if (level == SMB_FIND_FILE_UNIX) {
+ FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
filename = &pFindData->FileName[0];
- if(unicode) {
+ if (unicode) {
len = cifs_unicode_bytelen(filename);
} else {
/* BB should we make this strnlen of PATH_MAX? */
len = strnlen(filename, PATH_MAX);
}
- /* BB fixme - hash low and high 32 bits if not 64 bit arch BB fixme */
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+ /* BB fixme - hash low and high 32 bits if not 64 bit arch BB */
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
*pinum = pFindData->UniqueId;
- } else if(level == SMB_FIND_FILE_DIRECTORY_INFO) {
- FILE_DIRECTORY_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) {
+ FILE_DIRECTORY_INFO *pFindData =
(FILE_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
- } else if(level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
- FILE_FULL_DIRECTORY_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
+ FILE_FULL_DIRECTORY_INFO *pFindData =
(FILE_FULL_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
- } else if(level == SMB_FIND_FILE_ID_FULL_DIR_INFO) {
- SEARCH_ID_FULL_DIR_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) {
+ SEARCH_ID_FULL_DIR_INFO *pFindData =
(SEARCH_ID_FULL_DIR_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
*pinum = pFindData->UniqueId;
- } else if(level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
- FILE_BOTH_DIRECTORY_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
+ FILE_BOTH_DIRECTORY_INFO *pFindData =
(FILE_BOTH_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
- } else if(level == SMB_FIND_FILE_INFO_STANDARD) {
+ } else if (level == SMB_FIND_FILE_INFO_STANDARD) {
FIND_FILE_STANDARD_INFO * pFindData =
(FIND_FILE_STANDARD_INFO *)current_entry;
filename = &pFindData->FileName[0];
/* one byte length, no name conversion */
len = (unsigned int)pFindData->FileNameLength;
} else {
- cFYI(1,("Unknown findfirst level %d",level));
+ cFYI(1, ("Unknown findfirst level %d", level));
return -EINVAL;
}
- if(len > max_len) {
- cERROR(1,("bad search response length %d past smb end", len));
+ if (len > max_len) {
+ cERROR(1, ("bad search response length %d past smb end", len));
return -EINVAL;
}
- if(unicode) {
+ if (unicode) {
/* BB fixme - test with long names */
/* Note converted filename can be longer than in unicode */
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
pqst->len = cifs_convertUCSpath((char *)pqst->name,
(__le16 *)filename, len/2, nlt);
else
pqst->len = cifs_strfromUCS_le((char *)pqst->name,
- (__le16 *)filename,len/2,nlt);
+ (__le16 *)filename, len/2, nlt);
} else {
pqst->name = filename;
pqst->len = len;
}
- pqst->hash = full_name_hash(pqst->name,pqst->len);
-/* cFYI(1,("filldir on %s",pqst->name)); */
+ pqst->hash = full_name_hash(pqst->name, pqst->len);
+/* cFYI(1, ("filldir on %s",pqst->name)); */
return rc;
}
@@ -821,49 +825,50 @@ static int cifs_filldir(char *pfindEntry, struct file *file,
{
int rc = 0;
struct qstr qstring;
- struct cifsFileInfo * pCifsF;
+ struct cifsFileInfo *pCifsF;
unsigned obj_type;
ino_t inum;
- struct cifs_sb_info * cifs_sb;
+ struct cifs_sb_info *cifs_sb;
struct inode *tmp_inode;
struct dentry *tmp_dentry;
/* get filename and len into qstring */
/* get dentry */
/* decide whether to create and populate ionde */
- if((direntry == NULL) || (file == NULL))
+ if ((direntry == NULL) || (file == NULL))
return -EINVAL;
pCifsF = file->private_data;
-
- if((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL))
+
+ if ((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL))
return -ENOENT;
- rc = cifs_entry_is_dot(pfindEntry,pCifsF);
+ rc = cifs_entry_is_dot(pfindEntry, pCifsF);
/* skip . and .. since we added them first */
- if(rc != 0)
+ if (rc != 0)
return 0;
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
qstring.name = scratch_buf;
- rc = cifs_get_name_from_search_buf(&qstring,pfindEntry,
+ rc = cifs_get_name_from_search_buf(&qstring, pfindEntry,
pCifsF->srch_inf.info_level,
- pCifsF->srch_inf.unicode,cifs_sb,
+ pCifsF->srch_inf.unicode, cifs_sb,
max_len,
&inum /* returned */);
- if(rc)
+ if (rc)
return rc;
- rc = construct_dentry(&qstring,file,&tmp_inode, &tmp_dentry);
- if((tmp_inode == NULL) || (tmp_dentry == NULL))
+ rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry);
+ if ((tmp_inode == NULL) || (tmp_dentry == NULL))
return -ENOMEM;
- if(rc) {
+ if (rc) {
/* inode created, we need to hash it with right inode number */
- if(inum != 0) {
- /* BB fixme - hash the 2 32 quantities bits together if necessary BB */
+ if (inum != 0) {
+ /* BB fixme - hash the 2 32 quantities bits together if
+ * necessary BB */
tmp_inode->i_ino = inum;
}
insert_inode_hash(tmp_inode);
@@ -872,27 +877,27 @@ static int cifs_filldir(char *pfindEntry, struct file *file,
/* we pass in rc below, indicating whether it is a new inode,
so we can figure out whether to invalidate the inode cached
data if the file has changed */
- if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX)
+ if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX)
unix_fill_in_inode(tmp_inode,
(FILE_UNIX_INFO *)pfindEntry,
&obj_type, rc);
- else if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD)
+ else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD)
fill_in_inode(tmp_inode, 0 /* old level 1 buffer type */,
pfindEntry, &obj_type, rc);
else
fill_in_inode(tmp_inode, 1 /* NT */, pfindEntry, &obj_type, rc);
- if(rc) /* new inode - needs to be tied to dentry */ {
+ if (rc) /* new inode - needs to be tied to dentry */ {
d_instantiate(tmp_dentry, tmp_inode);
- if(rc == 2)
+ if (rc == 2)
d_rehash(tmp_dentry);
}
-
-
- rc = filldir(direntry,qstring.name,qstring.len,file->f_pos,
- tmp_inode->i_ino,obj_type);
- if(rc) {
- cFYI(1,("filldir rc = %d",rc));
+
+
+ rc = filldir(direntry, qstring.name, qstring.len, file->f_pos,
+ tmp_inode->i_ino, obj_type);
+ if (rc) {
+ cFYI(1, ("filldir rc = %d", rc));
/* we can not return filldir errors to the caller
since they are "normal" when the stat blocksize
is too small - we return remapped error instead */
@@ -909,57 +914,57 @@ static int cifs_save_resume_key(const char *current_entry,
int rc = 0;
unsigned int len = 0;
__u16 level;
- char * filename;
+ char *filename;
- if((cifsFile == NULL) || (current_entry == NULL))
+ if ((cifsFile == NULL) || (current_entry == NULL))
return -EINVAL;
level = cifsFile->srch_inf.info_level;
- if(level == SMB_FIND_FILE_UNIX) {
+ if (level == SMB_FIND_FILE_UNIX) {
FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry;
filename = &pFindData->FileName[0];
- if(cifsFile->srch_inf.unicode) {
+ if (cifsFile->srch_inf.unicode) {
len = cifs_unicode_bytelen(filename);
} else {
/* BB should we make this strnlen of PATH_MAX? */
len = strnlen(filename, PATH_MAX);
}
cifsFile->srch_inf.resume_key = pFindData->ResumeKey;
- } else if(level == SMB_FIND_FILE_DIRECTORY_INFO) {
- FILE_DIRECTORY_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) {
+ FILE_DIRECTORY_INFO *pFindData =
(FILE_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if(level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
- FILE_FULL_DIRECTORY_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
+ FILE_FULL_DIRECTORY_INFO *pFindData =
(FILE_FULL_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if(level == SMB_FIND_FILE_ID_FULL_DIR_INFO) {
- SEARCH_ID_FULL_DIR_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) {
+ SEARCH_ID_FULL_DIR_INFO *pFindData =
(SEARCH_ID_FULL_DIR_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if(level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
- FILE_BOTH_DIRECTORY_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
+ FILE_BOTH_DIRECTORY_INFO *pFindData =
(FILE_BOTH_DIRECTORY_INFO *)current_entry;
filename = &pFindData->FileName[0];
len = le32_to_cpu(pFindData->FileNameLength);
cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if(level == SMB_FIND_FILE_INFO_STANDARD) {
- FIND_FILE_STANDARD_INFO * pFindData =
+ } else if (level == SMB_FIND_FILE_INFO_STANDARD) {
+ FIND_FILE_STANDARD_INFO *pFindData =
(FIND_FILE_STANDARD_INFO *)current_entry;
filename = &pFindData->FileName[0];
/* one byte length, no name conversion */
len = (unsigned int)pFindData->FileNameLength;
cifsFile->srch_inf.resume_key = pFindData->ResumeKey;
} else {
- cFYI(1,("Unknown findfirst level %d",level));
+ cFYI(1, ("Unknown findfirst level %d", level));
return -EINVAL;
}
cifsFile->srch_inf.resume_name_len = len;
@@ -970,21 +975,21 @@ static int cifs_save_resume_key(const char *current_entry,
int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
{
int rc = 0;
- int xid,i;
+ int xid, i;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
struct cifsFileInfo *cifsFile = NULL;
- char * current_entry;
+ char *current_entry;
int num_to_fill = 0;
- char * tmp_buf = NULL;
- char * end_of_smb;
+ char *tmp_buf = NULL;
+ char *end_of_smb;
int max_len;
xid = GetXid();
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
pTcon = cifs_sb->tcon;
- if(pTcon == NULL)
+ if (pTcon == NULL)
return -EINVAL;
switch ((int) file->f_pos) {
@@ -1005,27 +1010,27 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
}
file->f_pos++;
default:
- /* 1) If search is active,
- is in current search buffer?
+ /* 1) If search is active,
+ is in current search buffer?
if it before then restart search
if after then keep searching till find it */
- if(file->private_data == NULL) {
- rc = initiate_cifs_search(xid,file);
- cFYI(1,("initiate cifs search rc %d",rc));
- if(rc) {
+ if (file->private_data == NULL) {
+ rc = initiate_cifs_search(xid, file);
+ cFYI(1, ("initiate cifs search rc %d", rc));
+ if (rc) {
FreeXid(xid);
return rc;
}
}
- if(file->private_data == NULL) {
+ if (file->private_data == NULL) {
rc = -EINVAL;
FreeXid(xid);
return rc;
}
cifsFile = file->private_data;
if (cifsFile->srch_inf.endOfSearch) {
- if(cifsFile->srch_inf.emptyDir) {
+ if (cifsFile->srch_inf.emptyDir) {
cFYI(1, ("End of search, empty dir"));
rc = 0;
break;
@@ -1033,23 +1038,23 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
} /* else {
cifsFile->invalidHandle = TRUE;
CIFSFindClose(xid, pTcon, cifsFile->netfid);
- }
+ }
kfree(cifsFile->search_resume_name);
cifsFile->search_resume_name = NULL; */
- rc = find_cifs_entry(xid,pTcon, file,
- &current_entry,&num_to_fill);
- if(rc) {
- cFYI(1,("fce error %d",rc));
+ rc = find_cifs_entry(xid, pTcon, file,
+ &current_entry, &num_to_fill);
+ if (rc) {
+ cFYI(1, ("fce error %d", rc));
goto rddir2_exit;
} else if (current_entry != NULL) {
- cFYI(1,("entry %lld found",file->f_pos));
+ cFYI(1, ("entry %lld found", file->f_pos));
} else {
- cFYI(1,("could not find entry"));
+ cFYI(1, ("could not find entry"));
goto rddir2_exit;
}
- cFYI(1,("loop through %d times filling dir for net buf %p",
- num_to_fill,cifsFile->srch_inf.ntwrk_buf_start));
+ cFYI(1, ("loop through %d times filling dir for net buf %p",
+ num_to_fill, cifsFile->srch_inf.ntwrk_buf_start));
max_len = smbCalcSize((struct smb_hdr *)
cifsFile->srch_inf.ntwrk_buf_start);
end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + max_len;
@@ -1059,8 +1064,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
such multibyte target UTF-8 characters. cifs_unicode.c,
which actually does the conversion, has the same limit */
tmp_buf = kmalloc((2 * NAME_MAX) + 4, GFP_KERNEL);
- for(i=0;(i<num_to_fill) && (rc == 0);i++) {
- if(current_entry == NULL) {
+ for (i = 0; (i < num_to_fill) && (rc == 0); i++) {
+ if (current_entry == NULL) {
/* evaluate whether this case is an error */
cERROR(1,("past end of SMB num to fill %d i %d",
num_to_fill, i));
@@ -1070,20 +1075,20 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
we want to check for that here? */
rc = cifs_filldir(current_entry, file,
filldir, direntry, tmp_buf, max_len);
- if(rc == -EOVERFLOW) {
+ if (rc == -EOVERFLOW) {
rc = 0;
break;
}
file->f_pos++;
- if(file->f_pos ==
+ if (file->f_pos ==
cifsFile->srch_inf.index_of_last_entry) {
- cFYI(1,("last entry in buf at pos %lld %s",
- file->f_pos,tmp_buf));
- cifs_save_resume_key(current_entry,cifsFile);
+ cFYI(1, ("last entry in buf at pos %lld %s",
+ file->f_pos, tmp_buf));
+ cifs_save_resume_key(current_entry, cifsFile);
break;
- } else
- current_entry =
+ } else
+ current_entry =
nxt_dir_entry(current_entry, end_of_smb,
cifsFile->srch_inf.info_level);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 02:57:59 +0000