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yaml
---
r: 111158
b: refs/heads/master
c: 0752f15
h: refs/heads/master
v: v3
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Steve French committed Oct 7, 2008
1 parent 9ac1f72 commit 0ace61e
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Showing 4 changed files with 71 additions and 64 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 6050247d8089037d6d8ea0f3c62fe4a931c1ab14
refs/heads/master: 0752f1522a9120f731232919f7ad904e9e22b8ce
1 change: 1 addition & 0 deletions trunk/fs/cifs/cifsglob.h
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Original file line number Diff line number Diff line change
Expand Up @@ -309,6 +309,7 @@ struct cifs_search_info {
__u32 resume_key;
char *ntwrk_buf_start;
char *srch_entries_start;
char *last_entry;
char *presume_name;
unsigned int resume_name_len;
bool endOfSearch:1;
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4 changes: 4 additions & 0 deletions trunk/fs/cifs/cifssmb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3636,6 +3636,8 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
le16_to_cpu(parms->SearchCount);
psrch_inf->index_of_last_entry = 2 /* skip . and .. */ +
psrch_inf->entries_in_buffer;
psrch_inf->last_entry = psrch_inf->srch_entries_start +
le16_to_cpu(parms->LastNameOffset);
*pnetfid = parms->SearchHandle;
} else {
cifs_buf_release(pSMB);
Expand Down Expand Up @@ -3751,6 +3753,8 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
le16_to_cpu(parms->SearchCount);
psrch_inf->index_of_last_entry +=
psrch_inf->entries_in_buffer;
psrch_inf->last_entry = psrch_inf->srch_entries_start +
le16_to_cpu(parms->LastNameOffset);
/* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",
psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */

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128 changes: 65 additions & 63 deletions trunk/fs/cifs/readdir.c
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Original file line number Diff line number Diff line change
Expand Up @@ -640,6 +640,70 @@ static int is_dir_changed(struct file *file)

}

static int cifs_save_resume_key(const char *current_entry,
struct cifsFileInfo *cifsFile)
{
int rc = 0;
unsigned int len = 0;
__u16 level;
char *filename;

if ((cifsFile == NULL) || (current_entry == NULL))
return -EINVAL;

level = cifsFile->srch_inf.info_level;

if (level == SMB_FIND_FILE_UNIX) {
FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;

filename = &pFindData->FileName[0];
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 =
(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 =
(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 =
(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 =
(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 =
(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));
return -EINVAL;
}
cifsFile->srch_inf.resume_name_len = len;
cifsFile->srch_inf.presume_name = filename;
return rc;
}

/* find the corresponding entry in the search */
/* Note that the SMB server returns search entries for . and .. which
complicates logic here if we choose to parse for them and we do not
Expand Down Expand Up @@ -703,6 +767,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) &&
(rc == 0) && !cifsFile->srch_inf.endOfSearch) {
cFYI(1, ("calling findnext2"));
cifs_save_resume_key(cifsFile->srch_inf.last_entry, cifsFile);
rc = CIFSFindNext(xid, pTcon, cifsFile->netfid,
&cifsFile->srch_inf);
if (rc)
Expand Down Expand Up @@ -919,69 +984,6 @@ static int cifs_filldir(char *pfindEntry, struct file *file,
return rc;
}

static int cifs_save_resume_key(const char *current_entry,
struct cifsFileInfo *cifsFile)
{
int rc = 0;
unsigned int len = 0;
__u16 level;
char *filename;

if ((cifsFile == NULL) || (current_entry == NULL))
return -EINVAL;

level = cifsFile->srch_inf.info_level;

if (level == SMB_FIND_FILE_UNIX) {
FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;

filename = &pFindData->FileName[0];
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 =
(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 =
(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 =
(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 =
(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 =
(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));
return -EINVAL;
}
cifsFile->srch_inf.resume_name_len = len;
cifsFile->srch_inf.presume_name = filename;
return rc;
}

int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
{
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