[SCM] Samba Shared Repository - branch master updated -
97fb05c2c0d0b08f3ed5aa7358a4d6d8c1725012
Jeremy Allison
jra at samba.org
Fri Nov 21 20:15:30 GMT 2008
The branch, master has been updated
via 97fb05c2c0d0b08f3ed5aa7358a4d6d8c1725012 (commit)
from 9164b14a9fb1fee9ddec275032bb911d34b683d5 (commit)
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 97fb05c2c0d0b08f3ed5aa7358a4d6d8c1725012
Author: Jeremy Allison <jra at samba.org>
Date: Fri Nov 21 12:14:53 2008 -0800
First part of fix for bug #5903 - vfs_streams_xattr breaks contents of the file.
Restructures parts of open code so that fsp must be allocated before calling
open_file_ntcreate(_internal). Also fix up file ref-counting inside files.c.
Jeremy.
-----------------------------------------------------------------------
Summary of changes:
source3/include/proto.h | 6 +-
source3/printing/printfsp.c | 15 +----
source3/smbd/close.c | 8 +--
source3/smbd/fake_file.c | 1 -
source3/smbd/files.c | 74 ++++++++++------------
source3/smbd/open.c | 143 ++++++++++++++++++++++++------------------
source3/smbd/reply.c | 9 +++-
7 files changed, 131 insertions(+), 125 deletions(-)
Changeset truncated at 500 lines:
diff --git a/source3/include/proto.h b/source3/include/proto.h
index dd4b9d1..2cf1a96 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -4866,7 +4866,7 @@ bool sysv_cache_reload(void);
NTSTATUS print_fsp_open(struct smb_request *req, connection_struct *conn,
const char *fname,
- uint16_t current_vuid, files_struct **result);
+ uint16_t current_vuid, files_struct *fsp);
void print_fsp_end(files_struct *fsp, enum file_close_type close_type);
/* The following definitions come from printing/printing.c */
@@ -7860,9 +7860,9 @@ void file_sync_all(connection_struct *conn);
void file_free(struct smb_request *req, files_struct *fsp);
files_struct *file_fnum(uint16 fnum);
files_struct *file_fsp(struct smb_request *req, uint16 fid);
-NTSTATUS dup_file_fsp(struct smb_request *req, files_struct *fsp,
+void dup_file_fsp(struct smb_request *req, files_struct *from,
uint32 access_mask, uint32 share_access,
- uint32 create_options, files_struct **result);
+ uint32 create_options, files_struct *to);
/* The following definitions come from smbd/ipc.c */
diff --git a/source3/printing/printfsp.c b/source3/printing/printfsp.c
index a247cd8..5481d95 100644
--- a/source3/printing/printfsp.c
+++ b/source3/printing/printfsp.c
@@ -27,19 +27,13 @@ print_job_start().
NTSTATUS print_fsp_open(struct smb_request *req, connection_struct *conn,
const char *fname,
- uint16_t current_vuid, files_struct **result)
+ uint16_t current_vuid, files_struct *fsp)
{
int jobid;
SMB_STRUCT_STAT sbuf;
- files_struct *fsp;
fstring name;
NTSTATUS status;
- status = file_new(req, conn, &fsp);
- if(!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
fstrcpy( name, "Remote Downlevel Document");
if (fname) {
const char *p = strrchr(fname, '/');
@@ -53,7 +47,6 @@ NTSTATUS print_fsp_open(struct smb_request *req, connection_struct *conn,
jobid = print_job_start(conn->server_info, SNUM(conn), name, NULL);
if (jobid == -1) {
status = map_nt_error_from_unix(errno);
- file_free(req, fsp);
return status;
}
@@ -62,7 +55,6 @@ NTSTATUS print_fsp_open(struct smb_request *req, connection_struct *conn,
if (fsp->rap_print_jobid == 0) {
/* We need to delete the entry in the tdb. */
pjob_delete(lp_const_servicename(SNUM(conn)), jobid);
- file_free(req, fsp);
return NT_STATUS_ACCESS_DENIED; /* No errno around here */
}
@@ -81,14 +73,11 @@ NTSTATUS print_fsp_open(struct smb_request *req, connection_struct *conn,
fsp->sent_oplock_break = NO_BREAK_SENT;
fsp->is_directory = False;
string_set(&fsp->fsp_name,print_job_fname(lp_const_servicename(SNUM(conn)),jobid));
- fsp->wcp = NULL;
+ fsp->wcp = NULL;
SMB_VFS_FSTAT(fsp, &sbuf);
fsp->mode = sbuf.st_mode;
fsp->file_id = vfs_file_id_from_sbuf(conn, &sbuf);
- conn->num_files_open++;
-
- *result = fsp;
return NT_STATUS_OK;
}
diff --git a/source3/smbd/close.c b/source3/smbd/close.c
index d4c531a..ce918ab 100644
--- a/source3/smbd/close.c
+++ b/source3/smbd/close.c
@@ -106,8 +106,7 @@ static void check_magic(struct files_struct *fsp)
static NTSTATUS close_filestruct(files_struct *fsp)
{
NTSTATUS status = NT_STATUS_OK;
- connection_struct *conn = fsp->conn;
-
+
if (fsp->fh->fd != -1) {
if(flush_write_cache(fsp, CLOSE_FLUSH) == -1) {
status = map_nt_error_from_unix(errno);
@@ -115,9 +114,8 @@ static NTSTATUS close_filestruct(files_struct *fsp)
delete_write_cache(fsp);
}
- conn->num_files_open--;
return status;
-}
+}
/****************************************************************************
If any deferred opens are waiting on this close, notify them.
@@ -583,7 +581,7 @@ static NTSTATUS close_normal_file(struct smb_request *req, files_struct *fsp,
DEBUG(2,("%s closed file %s (numopen=%d) %s\n",
conn->server_info->unix_name,fsp->fsp_name,
- conn->num_files_open,
+ conn->num_files_open - 1,
nt_errstr(status) ));
file_free(req, fsp);
diff --git a/source3/smbd/fake_file.c b/source3/smbd/fake_file.c
index 58b0960..7feedcc 100644
--- a/source3/smbd/fake_file.c
+++ b/source3/smbd/fake_file.c
@@ -141,7 +141,6 @@ NTSTATUS open_fake_file(struct smb_request *req, connection_struct *conn,
return NT_STATUS_NO_MEMORY;
}
- conn->num_files_open++;
*result = fsp;
return NT_STATUS_OK;
}
diff --git a/source3/smbd/files.c b/source3/smbd/files.c
index d3bfce7..1a3a997 100644
--- a/source3/smbd/files.c
+++ b/source3/smbd/files.c
@@ -129,6 +129,8 @@ NTSTATUS file_new(struct smb_request *req, connection_struct *conn,
ZERO_STRUCT(fsp_fi_cache);
+ conn->num_files_open++;
+
*result = fsp;
return NT_STATUS_OK;
}
@@ -420,9 +422,7 @@ void file_free(struct smb_request *req, files_struct *fsp)
DEBUG(5,("freed files structure %d (%d used)\n",
fsp->fnum, files_used));
- /* this is paranoia, just in case someone tries to reuse the
- information */
- ZERO_STRUCTP(fsp);
+ fsp->conn->num_files_open--;
if ((req != NULL) && (fsp == req->chain_fsp)) {
req->chain_fsp = NULL;
@@ -438,6 +438,10 @@ void file_free(struct smb_request *req, files_struct *fsp)
vfs_remove_fsp_extension(fsp->vfs_extension->owner, fsp);
}
+ /* this is paranoia, just in case someone tries to reuse the
+ information */
+ ZERO_STRUCTP(fsp);
+
SAFE_FREE(fsp);
}
@@ -484,46 +488,34 @@ files_struct *file_fsp(struct smb_request *req, uint16 fid)
Duplicate the file handle part for a DOS or FCB open.
****************************************************************************/
-NTSTATUS dup_file_fsp(struct smb_request *req, files_struct *fsp,
+void dup_file_fsp(struct smb_request *req, files_struct *from,
uint32 access_mask, uint32 share_access,
- uint32 create_options, files_struct **result)
+ uint32 create_options, files_struct *to)
{
- NTSTATUS status;
- files_struct *dup_fsp;
-
- status = file_new(NULL, fsp->conn, &dup_fsp);
-
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
- SAFE_FREE(dup_fsp->fh);
-
- dup_fsp->fh = fsp->fh;
- dup_fsp->fh->ref_count++;
-
- dup_fsp->file_id = fsp->file_id;
- dup_fsp->initial_allocation_size = fsp->initial_allocation_size;
- dup_fsp->mode = fsp->mode;
- dup_fsp->file_pid = fsp->file_pid;
- dup_fsp->vuid = fsp->vuid;
- dup_fsp->open_time = fsp->open_time;
- dup_fsp->access_mask = access_mask;
- dup_fsp->share_access = share_access;
- dup_fsp->oplock_type = fsp->oplock_type;
- dup_fsp->can_lock = fsp->can_lock;
- dup_fsp->can_read = (access_mask & (FILE_READ_DATA)) ? True : False;
- if (!CAN_WRITE(fsp->conn)) {
- dup_fsp->can_write = False;
+ SAFE_FREE(to->fh);
+
+ to->fh = from->fh;
+ to->fh->ref_count++;
+
+ to->file_id = from->file_id;
+ to->initial_allocation_size = from->initial_allocation_size;
+ to->mode = from->mode;
+ to->file_pid = from->file_pid;
+ to->vuid = from->vuid;
+ to->open_time = from->open_time;
+ to->access_mask = access_mask;
+ to->share_access = share_access;
+ to->oplock_type = from->oplock_type;
+ to->can_lock = from->can_lock;
+ to->can_read = (access_mask & (FILE_READ_DATA)) ? True : False;
+ if (!CAN_WRITE(from->conn)) {
+ to->can_write = False;
} else {
- dup_fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ? True : False;
+ to->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ? True : False;
}
- dup_fsp->print_file = fsp->print_file;
- dup_fsp->modified = fsp->modified;
- dup_fsp->is_directory = fsp->is_directory;
- dup_fsp->aio_write_behind = fsp->aio_write_behind;
- string_set(&dup_fsp->fsp_name,fsp->fsp_name);
-
- *result = dup_fsp;
- return NT_STATUS_OK;
+ to->print_file = from->print_file;
+ to->modified = from->modified;
+ to->is_directory = from->is_directory;
+ to->aio_write_behind = from->aio_write_behind;
+ string_set(&to->fsp_name,from->fsp_name);
}
diff --git a/source3/smbd/open.c b/source3/smbd/open.c
index 3fd0d1a..aca6491 100644
--- a/source3/smbd/open.c
+++ b/source3/smbd/open.c
@@ -462,7 +462,7 @@ static NTSTATUS open_file(files_struct *fsp,
conn->server_info->unix_name,
fsp->fsp_name,
BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
- conn->num_files_open + 1));
+ conn->num_files_open));
errno = 0;
return NT_STATUS_OK;
@@ -951,9 +951,10 @@ static bool open_match_attributes(connection_struct *conn,
Try and find a duplicated file handle.
****************************************************************************/
-static files_struct *fcb_or_dos_open(struct smb_request *req,
+static NTSTATUS fcb_or_dos_open(struct smb_request *req,
connection_struct *conn,
- const char *fname,
+ files_struct *fsp_to_dup_into,
+ const char *fname,
struct file_id id,
uint16 file_pid,
uint16 vuid,
@@ -962,7 +963,6 @@ static files_struct *fcb_or_dos_open(struct smb_request *req,
uint32 create_options)
{
files_struct *fsp;
- files_struct *dup_fsp;
DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
"file %s.\n", fname ));
@@ -991,23 +991,21 @@ static files_struct *fcb_or_dos_open(struct smb_request *req,
}
if (!fsp) {
- return NULL;
+ return NT_STATUS_NOT_FOUND;
}
/* quite an insane set of semantics ... */
if (is_executable(fname) &&
(fsp->fh->private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS)) {
DEBUG(10,("fcb_or_dos_open: file fail due to is_executable.\n"));
- return NULL;
+ return NT_STATUS_INVALID_PARAMETER;
}
/* We need to duplicate this fsp. */
- if (!NT_STATUS_IS_OK(dup_file_fsp(req, fsp, access_mask, share_access,
- create_options, &dup_fsp))) {
- return NULL;
- }
+ dup_file_fsp(req, fsp, access_mask, share_access,
+ create_options, fsp_to_dup_into);
- return dup_fsp;
+ return NT_STATUS_OK;
}
/****************************************************************************
@@ -1249,10 +1247,10 @@ static NTSTATUS calculate_access_mask(connection_struct *conn,
}
/****************************************************************************
- Open a file with a share mode.
+ Open a file with a share mode. Passed in an already created files_struct *.
****************************************************************************/
-NTSTATUS open_file_ntcreate(connection_struct *conn,
+static NTSTATUS open_file_ntcreate_internal(connection_struct *conn,
struct smb_request *req,
const char *fname,
SMB_STRUCT_STAT *psbuf,
@@ -1264,7 +1262,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
int oplock_request, /* internal Samba oplock codes. */
/* Information (FILE_EXISTS etc.) */
int *pinfo,
- files_struct **result)
+ files_struct *fsp)
{
int flags=0;
int flags2=0;
@@ -1274,7 +1272,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
bool new_file_created = False;
struct file_id id;
NTSTATUS fsp_open = NT_STATUS_ACCESS_DENIED;
- files_struct *fsp = NULL;
mode_t new_unx_mode = (mode_t)0;
mode_t unx_mode = (mode_t)0;
int info;
@@ -1291,7 +1288,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
ZERO_STRUCT(id);
if (conn->printer) {
- /*
+ /*
* Printers are handled completely differently.
* Most of the passed parameters are ignored.
*/
@@ -1302,7 +1299,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n", fname));
- return print_fsp_open(req, conn, fname, req->vuid, result);
+ return print_fsp_open(req, conn, fname, req->vuid, fsp);
}
if (!parent_dirname_talloc(talloc_tos(), fname, &parent_dir,
@@ -1366,7 +1363,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
status = check_name(conn, fname);
if (!NT_STATUS_IS_OK(status)) {
return status;
- }
+ }
if (!posix_open) {
new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
@@ -1533,7 +1530,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
flags2 |= O_SYNC;
}
#endif /* O_SYNC */
-
+
if (posix_open && (access_mask & FILE_APPEND_DATA)) {
flags2 |= O_APPEND;
}
@@ -1560,11 +1557,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
return NT_STATUS_ACCESS_DENIED;
}
- status = file_new(req, conn, &fsp);
- if(!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
fsp->file_id = vfs_file_id_from_sbuf(conn, psbuf);
fsp->share_access = share_access;
fsp->fh->private_options = create_options;
@@ -1589,7 +1581,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
fname, &old_write_time);
if (lck == NULL) {
- file_free(req, fsp);
DEBUG(0, ("Could not get share mode lock\n"));
return NT_STATUS_SHARING_VIOLATION;
}
@@ -1600,7 +1591,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
oplock_request)) {
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
- file_free(req, fsp);
return NT_STATUS_SHARING_VIOLATION;
}
@@ -1620,7 +1610,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
oplock_request)) {
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
- file_free(req, fsp);
return NT_STATUS_SHARING_VIOLATION;
}
}
@@ -1628,7 +1617,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
/* DELETE_PENDING is not deferred for a second */
TALLOC_FREE(lck);
- file_free(req, fsp);
return status;
}
@@ -1643,33 +1631,31 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
if (create_options &
(NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
- files_struct *fsp_dup;
-
if (req == NULL) {
DEBUG(0, ("DOS open without an SMB "
"request!\n"));
TALLOC_FREE(lck);
- file_free(req, fsp);
return NT_STATUS_INTERNAL_ERROR;
}
/* Use the client requested access mask here,
* not the one we open with. */
- fsp_dup = fcb_or_dos_open(req, conn, fname, id,
- req->smbpid,
- req->vuid,
- access_mask,
- share_access,
- create_options);
-
- if (fsp_dup) {
+ status = fcb_or_dos_open(req,
+ conn,
+ fsp,
+ fname,
+ id,
+ req->smbpid,
+ req->vuid,
+ access_mask,
+ share_access,
+ create_options);
+
+ if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(lck);
- file_free(req, fsp);
if (pinfo) {
*pinfo = FILE_WAS_OPENED;
}
- conn->num_files_open++;
- *result = fsp_dup;
return NT_STATUS_OK;
}
}
@@ -1697,7 +1683,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
can_access = False;
}
- /*
+ /*
* If we're returning a share violation, ensure we
* cope with the braindead 1 second delay.
*/
@@ -1750,7 +1736,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
} else {
status = NT_STATUS_ACCESS_DENIED;
}
- file_free(req, fsp);
return status;
}
@@ -1788,7 +1773,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
if (lck != NULL) {
TALLOC_FREE(lck);
}
- file_free(req, fsp);
return fsp_open;
}
@@ -1819,7 +1803,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
DEBUG(0, ("open_file_ntcreate: Could not get share "
"mode lock for %s\n", fname));
fd_close(fsp);
- file_free(req, fsp);
return NT_STATUS_SHARING_VIOLATION;
}
@@ -1830,7 +1813,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
fd_close(fsp);
- file_free(req, fsp);
return NT_STATUS_SHARING_VIOLATION;
}
@@ -1849,7 +1831,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
schedule_defer_open(lck, request_time, req);
TALLOC_FREE(lck);
fd_close(fsp);
--
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