NTSTATUS query_lock(files_struct *fsp,
uint32 *psmbpid,
SMB_BIG_UINT *pcount,
SMB_BIG_UINT *poffset,
enum brl_type *plock_type,
enum brl_flavour lock_flav)
{
struct byte_range_lock *br_lck = NULL;
NTSTATUS status = NT_STATUS_LOCK_NOT_GRANTED;
if (!fsp->can_lock) {
return fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
}
if (!lp_locking(fsp->conn->params)) {
return NT_STATUS_OK;
}
br_lck = brl_get_locks_readonly(NULL, fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
status = brl_lockquery(br_lck,
psmbpid,
procid_self(),
poffset,
pcount,
plock_type,
lock_flav);
TALLOC_FREE(br_lck);
return status;
}
void locking_close_file(struct messaging_context *msg_ctx,
files_struct *fsp,
enum file_close_type close_type)
{
struct byte_range_lock *br_lck;
if (!lp_locking(fsp->conn->params)) {
return;
}
/* If we have not outstanding locks or pending
* locks then we don't need to look in the lock db.
*/
if (fsp->current_lock_count == 0) {
return;
}
br_lck = brl_get_locks(talloc_tos(),fsp);
if (br_lck) {
cancel_pending_lock_requests_by_fid(fsp, br_lck, close_type);
brl_close_fnum(msg_ctx, br_lck);
TALLOC_FREE(br_lck);
}
}
BOOL is_locked(uint16 smbpid,
files_struct * fsp, struct vfs_connection_struct *conn,
SMB_BIG_UINT count, SMB_BIG_UINT offset,
enum brl_type lock_type)
{
int snum = conn->snum;
BOOL ret;
if (count == 0)
return (False);
if (!lp_locking(snum) || !lp_strict_locking(snum))
return (False);
ret = !brl_locktest(fsp->sbuf.st_dev, fsp->sbuf.st_ino, fsp->fnum,
smbpid, sys_getpid(), conn->snum,
offset, count, lock_type);
/*
* There is no lock held by an SMB daemon, check to
* see if there is a POSIX lock from a UNIX or NFS process.
*/
if (!ret && lp_posix_locking(snum))
ret = is_posix_locked(fsp, offset, count, lock_type);
return ret;
}
struct byte_range_lock *do_lock(files_struct *fsp,
uint32 lock_pid,
SMB_BIG_UINT count,
SMB_BIG_UINT offset,
enum brl_type lock_type,
enum brl_flavour lock_flav,
BOOL blocking_lock,
NTSTATUS *perr,
uint32 *plock_pid)
{
struct byte_range_lock *br_lck = NULL;
if (!fsp->can_lock) {
*perr = fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
return NULL;
}
if (!lp_locking(fsp->conn->params)) {
*perr = NT_STATUS_OK;
return NULL;
}
/* NOTE! 0 byte long ranges ARE allowed and should be stored */
DEBUG(10,("do_lock: lock flavour %s lock type %s start=%.0f len=%.0f requested for fnum %d file %s\n",
lock_flav_name(lock_flav), lock_type_name(lock_type),
(double)offset, (double)count, fsp->fnum, fsp->fsp_name ));
br_lck = brl_get_locks(NULL, fsp);
if (!br_lck) {
*perr = NT_STATUS_NO_MEMORY;
return NULL;
}
*perr = brl_lock(br_lck,
lock_pid,
procid_self(),
offset,
count,
lock_type,
lock_flav,
blocking_lock,
plock_pid);
if (lock_flav == WINDOWS_LOCK &&
fsp->current_lock_count != NO_LOCKING_COUNT) {
/* blocking ie. pending, locks also count here,
* as this is an efficiency counter to avoid checking
* the lock db. on close. JRA. */
fsp->current_lock_count++;
} else {
/* Notice that this has had a POSIX lock request.
* We can't count locks after this so forget them.
*/
fsp->current_lock_count = NO_LOCKING_COUNT;
}
return br_lck;
}
NTSTATUS query_lock(files_struct *fsp,
uint16 *psmbpid,
SMB_BIG_UINT *pcount,
SMB_BIG_UINT *poffset,
enum brl_type *plock_type,
enum brl_flavour lock_flav)
{
struct byte_range_lock *br_lck = NULL;
NTSTATUS status = NT_STATUS_LOCK_NOT_GRANTED;
if (!OPEN_FSP(fsp) || !fsp->can_lock) {
return NT_STATUS_INVALID_HANDLE;
}
if (!lp_locking(SNUM(fsp->conn))) {
return NT_STATUS_OK;
}
br_lck = brl_get_locks(fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
status = brl_lockquery(br_lck,
psmbpid,
procid_self(),
poffset,
pcount,
plock_type,
lock_flav);
byte_range_lock_destructor(br_lck);
return status;
}
NTSTATUS query_lock(files_struct *fsp,
uint64_t *psmblctx,
uint64_t *pcount,
uint64_t *poffset,
enum brl_type *plock_type,
enum brl_flavour lock_flav)
{
struct byte_range_lock *br_lck = NULL;
if (!fsp->can_lock) {
return fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
}
if (!lp_locking(fsp->conn->params)) {
return NT_STATUS_OK;
}
br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
return brl_lockquery(br_lck,
psmblctx,
messaging_server_id(fsp->conn->sconn->msg_ctx),
poffset,
pcount,
plock_type,
lock_flav);
}
NTSTATUS do_lock_cancel(files_struct *fsp,
uint32 lock_pid,
SMB_BIG_UINT count,
SMB_BIG_UINT offset,
enum brl_flavour lock_flav)
{
BOOL ok = False;
struct byte_range_lock *br_lck = NULL;
if (!fsp->can_lock) {
return fsp->is_directory ?
NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
}
if (!lp_locking(fsp->conn->params)) {
return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
}
DEBUG(10,("do_lock_cancel: cancel start=%.0f len=%.0f requested for fnum %d file %s\n",
(double)offset, (double)count, fsp->fnum, fsp->fsp_name ));
br_lck = brl_get_locks(NULL, fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
ok = brl_lock_cancel(br_lck,
lock_pid,
procid_self(),
offset,
count,
lock_flav);
TALLOC_FREE(br_lck);
if (!ok) {
DEBUG(10,("do_lock_cancel: returning ERRcancelviolation.\n" ));
return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
}
if (lock_flav == WINDOWS_LOCK &&
fsp->current_lock_count != NO_LOCKING_COUNT) {
SMB_ASSERT(fsp->current_lock_count > 0);
fsp->current_lock_count--;
}
return NT_STATUS_OK;
}
NTSTATUS do_lock_cancel(files_struct *fsp,
uint64 smblctx,
uint64_t count,
uint64_t offset,
enum brl_flavour lock_flav,
struct blocking_lock_record *blr)
{
bool ok = False;
struct byte_range_lock *br_lck = NULL;
if (!fsp->can_lock) {
return fsp->is_directory ?
NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
}
if (!lp_locking(fsp->conn->params)) {
return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
}
DEBUG(10,("do_lock_cancel: cancel start=%.0f len=%.0f requested for %s file %s\n",
(double)offset, (double)count, fsp_fnum_dbg(fsp),
fsp_str_dbg(fsp)));
br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
ok = brl_lock_cancel(br_lck,
smblctx,
messaging_server_id(fsp->conn->sconn->msg_ctx),
offset,
count,
lock_flav,
blr);
TALLOC_FREE(br_lck);
if (!ok) {
DEBUG(10,("do_lock_cancel: returning ERRcancelviolation.\n" ));
return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
}
decrement_current_lock_count(fsp, lock_flav);
return NT_STATUS_OK;
}
NTSTATUS do_unlock(struct messaging_context *msg_ctx,
files_struct *fsp,
uint64_t smblctx,
uint64_t count,
uint64_t offset,
enum brl_flavour lock_flav)
{
bool ok = False;
struct byte_range_lock *br_lck = NULL;
if (!fsp->can_lock) {
return fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
}
if (!lp_locking(fsp->conn->params)) {
return NT_STATUS_OK;
}
DEBUG(10,("do_unlock: unlock start=%.0f len=%.0f requested for %s file %s\n",
(double)offset, (double)count, fsp_fnum_dbg(fsp),
fsp_str_dbg(fsp)));
br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
ok = brl_unlock(msg_ctx,
br_lck,
smblctx,
messaging_server_id(fsp->conn->sconn->msg_ctx),
offset,
count,
lock_flav);
TALLOC_FREE(br_lck);
if (!ok) {
DEBUG(10,("do_unlock: returning ERRlock.\n" ));
return NT_STATUS_RANGE_NOT_LOCKED;
}
decrement_current_lock_count(fsp, lock_flav);
return NT_STATUS_OK;
}
BOOL do_unlock(uint16 smbpid,
files_struct * fsp, struct vfs_connection_struct *conn,
SMB_BIG_UINT count, SMB_BIG_UINT offset, uint32 *err)
{
BOOL ok = False;
if (!lp_locking(conn->snum))
return (True);
if (!OPEN_FSP(fsp) || !fsp->can_lock || (fsp->conn != conn))
{
*err = NT_STATUS_NOT_LOCKED;
return False;
}
DEBUG(10,
("do_unlock: unlock start=%.0f len=%.0f requested for file %s\n",
(double)offset, (double)count, smbstrA(fsp->fsp_name)));
/*
* Remove the existing lock record from the tdb lockdb
* before looking at POSIX locks. If this record doesn't
* match then don't bother looking to remove POSIX locks.
*/
ok = brl_unlock(fsp->sbuf.st_dev, fsp->sbuf.st_ino, fsp->fnum,
smbpid, sys_getpid(), conn->snum, offset,
count);
if (!ok)
{
DEBUG(10, ("do_unlock: returning ERRlock.\n"));
*err = NT_STATUS_RANGE_NOT_LOCKED;
return False;
}
if (!lp_posix_locking(conn->snum))
return True;
(void)release_posix_lock(fsp, offset, count);
return True; /* Did unlock */
}
static NTSTATUS do_lock(files_struct *fsp,connection_struct *conn, uint16 lock_pid,
SMB_BIG_UINT count,SMB_BIG_UINT offset,enum brl_type lock_type)
{
NTSTATUS status;
if (!lp_locking(SNUM(conn)))
return NT_STATUS_OK;
/* NOTE! 0 byte long ranges ARE allowed and should be stored */
DEBUG(10,("do_lock: lock type %s start=%.0f len=%.0f requested for file %s\n",
lock_type_name(lock_type), (double)offset, (double)count, fsp->fsp_name ));
if (OPEN_FSP(fsp) && fsp->can_lock && (fsp->conn == conn)) {
status = brl_lock(fsp->dev, fsp->inode, fsp->fnum,
lock_pid, sys_getpid(), conn->cnum,
offset, count,
lock_type);
if (NT_STATUS_IS_OK(status) && lp_posix_locking(SNUM(conn))) {
/*
* Try and get a POSIX lock on this range.
* Note that this is ok if it is a read lock
* overlapping on a different fd. JRA.
*/
if (!set_posix_lock(fsp, offset, count, lock_type)) {
status = NT_STATUS_LOCK_NOT_GRANTED;
/*
* We failed to map - we must now remove the brl
* lock entry.
*/
(void)brl_unlock(fsp->dev, fsp->inode, fsp->fnum,
lock_pid, sys_getpid(), conn->cnum,
offset, count, False);
}
}
}
return status;
}
NTSTATUS do_lock(files_struct *fsp,
uint16 lock_pid,
SMB_BIG_UINT count,
SMB_BIG_UINT offset,
enum brl_type lock_type,
enum brl_flavour lock_flav,
BOOL *my_lock_ctx)
{
struct byte_range_lock *br_lck = NULL;
NTSTATUS status = NT_STATUS_LOCK_NOT_GRANTED;
if (!OPEN_FSP(fsp) || !fsp->can_lock) {
return NT_STATUS_INVALID_HANDLE;
}
if (!lp_locking(SNUM(fsp->conn))) {
return NT_STATUS_OK;
}
/* NOTE! 0 byte long ranges ARE allowed and should be stored */
DEBUG(10,("do_lock: lock flavour %s lock type %s start=%.0f len=%.0f requested for fnum %d file %s\n",
lock_flav_name(lock_flav), lock_type_name(lock_type),
(double)offset, (double)count, fsp->fnum, fsp->fsp_name ));
br_lck = brl_get_locks(fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
status = brl_lock(br_lck,
lock_pid,
procid_self(),
offset,
count,
lock_type,
lock_flav,
my_lock_ctx);
byte_range_lock_destructor(br_lck);
return status;
}
NTSTATUS do_unlock(files_struct *fsp,
uint16 lock_pid,
SMB_BIG_UINT count,
SMB_BIG_UINT offset,
enum brl_flavour lock_flav)
{
BOOL ok = False;
struct byte_range_lock *br_lck = NULL;
if (!lp_locking(SNUM(fsp->conn))) {
return NT_STATUS_OK;
}
if (!OPEN_FSP(fsp) || !fsp->can_lock) {
return NT_STATUS_INVALID_HANDLE;
}
DEBUG(10,("do_unlock: unlock start=%.0f len=%.0f requested for fnum %d file %s\n",
(double)offset, (double)count, fsp->fnum, fsp->fsp_name ));
br_lck = brl_get_locks(fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
ok = brl_unlock(br_lck,
lock_pid,
procid_self(),
offset,
count,
lock_flav);
byte_range_lock_destructor(br_lck);
if (!ok) {
DEBUG(10,("do_unlock: returning ERRlock.\n" ));
return NT_STATUS_RANGE_NOT_LOCKED;
}
return NT_STATUS_OK;
}
void locking_close_file(files_struct *fsp)
{
pid_t pid = sys_getpid();
if (!lp_locking(SNUM(fsp->conn)))
return;
/*
* Just release all the brl locks, no need to release individually.
*/
brl_close(fsp->dev, fsp->inode, pid, fsp->conn->cnum, fsp->fnum);
if(lp_posix_locking(SNUM(fsp->conn))) {
/*
* Release all the POSIX locks.
*/
posix_locking_close_file(fsp);
}
}
void locking_close_file(files_struct *fsp)
{
struct byte_range_lock *br_lck;
if (!lp_locking(fsp->conn->params)) {
return;
}
/* If we have not outstanding locks or pending
* locks then we don't need to look in the lock db.
*/
if (fsp->current_lock_count == 0) {
return;
}
br_lck = brl_get_locks(NULL,fsp);
if (br_lck) {
cancel_pending_lock_requests_by_fid(fsp, br_lck);
brl_close_fnum(br_lck);
TALLOC_FREE(br_lck);
}
}
NTSTATUS do_unlock(files_struct *fsp,connection_struct *conn, uint16 lock_pid,
SMB_BIG_UINT count,SMB_BIG_UINT offset)
{
BOOL ok = False;
if (!lp_locking(SNUM(conn)))
return NT_STATUS_OK;
if (!OPEN_FSP(fsp) || !fsp->can_lock || (fsp->conn != conn)) {
return NT_STATUS_INVALID_HANDLE;
}
DEBUG(10,("do_unlock: unlock start=%.0f len=%.0f requested for file %s\n",
(double)offset, (double)count, fsp->fsp_name ));
/*
* Remove the existing lock record from the tdb lockdb
* before looking at POSIX locks. If this record doesn't
* match then don't bother looking to remove POSIX locks.
*/
ok = brl_unlock(fsp->dev, fsp->inode, fsp->fnum,
lock_pid, sys_getpid(), conn->cnum, offset, count, False);
if (!ok) {
DEBUG(10,("do_unlock: returning ERRlock.\n" ));
return NT_STATUS_RANGE_NOT_LOCKED;
}
if (!lp_posix_locking(SNUM(conn)))
return NT_STATUS_OK;
(void)release_posix_lock(fsp, offset, count);
return NT_STATUS_OK;
}
BOOL is_locked(files_struct *fsp,connection_struct *conn,
SMB_BIG_UINT count,SMB_BIG_UINT offset,
enum brl_type lock_type, BOOL check_self)
{
int snum = SNUM(conn);
BOOL ret;
if (count == 0)
return(False);
if (!lp_locking(snum) || !lp_strict_locking(snum))
return(False);
ret = !brl_locktest(fsp->dev, fsp->inode, fsp->fnum,
global_smbpid, sys_getpid(), conn->cnum,
offset, count, lock_type, check_self);
DEBUG(10,("is_locked: brl start=%.0f len=%.0f %s for file %s\n",
(double)offset, (double)count, ret ? "locked" : "unlocked",
fsp->fsp_name ));
/*
* There is no lock held by an SMB daemon, check to
* see if there is a POSIX lock from a UNIX or NFS process.
*/
if(!ret && lp_posix_locking(snum)) {
ret = is_posix_locked(fsp, offset, count, lock_type);
DEBUG(10,("is_locked: posix start=%.0f len=%.0f %s for file %s\n",
(double)offset, (double)count, ret ? "locked" : "unlocked",
fsp->fsp_name ));
}
return ret;
}
void locking_close_file(files_struct *fsp)
{
struct byte_range_lock *br_lck;
struct process_id pid = procid_self();
if (!lp_locking(SNUM(fsp->conn)))
return;
/*
* Just release all the brl locks, no need to release individually.
*/
br_lck = brl_get_locks(fsp);
if (br_lck) {
brl_close_fnum(br_lck, pid);
byte_range_lock_destructor(br_lck);
}
if(lp_posix_locking(SNUM(fsp->conn))) {
/* Release all the POSIX locks.*/
posix_locking_close_file(fsp);
}
}
struct byte_range_lock *do_lock(struct messaging_context *msg_ctx,
files_struct *fsp,
uint64_t smblctx,
uint64_t count,
uint64_t offset,
enum brl_type lock_type,
enum brl_flavour lock_flav,
bool blocking_lock,
NTSTATUS *perr,
uint64_t *psmblctx,
struct blocking_lock_record *blr)
{
struct byte_range_lock *br_lck = NULL;
/* silently return ok on print files as we don't do locking there */
if (fsp->print_file) {
*perr = NT_STATUS_OK;
return NULL;
}
if (!fsp->can_lock) {
*perr = fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
return NULL;
}
if (!lp_locking(fsp->conn->params)) {
*perr = NT_STATUS_OK;
return NULL;
}
/* NOTE! 0 byte long ranges ARE allowed and should be stored */
DEBUG(10,("do_lock: lock flavour %s lock type %s start=%.0f len=%.0f "
"blocking_lock=%s requested for %s file %s\n",
lock_flav_name(lock_flav), lock_type_name(lock_type),
(double)offset, (double)count, blocking_lock ? "true" :
"false", fsp_fnum_dbg(fsp), fsp_str_dbg(fsp)));
br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
*perr = NT_STATUS_NO_MEMORY;
return NULL;
}
*perr = brl_lock(msg_ctx,
br_lck,
smblctx,
messaging_server_id(fsp->conn->sconn->msg_ctx),
offset,
count,
lock_type,
lock_flav,
blocking_lock,
psmblctx,
blr);
DEBUG(10, ("do_lock: returning status=%s\n", nt_errstr(*perr)));
increment_current_lock_count(fsp, lock_flav);
return br_lck;
}
BOOL do_lock(uint16 smbpid,
files_struct * fsp, struct vfs_connection_struct *conn,
SMB_BIG_UINT count, SMB_BIG_UINT offset, enum brl_type lock_type,
uint32 *err)
{
BOOL ok = False;
if (!lp_locking(conn->snum))
return (True);
if (count == 0)
{
*err = NT_STATUS_ACCESS_DENIED;
return False;
}
DEBUG(10,
("do_lock: lock type %s start=%.0f len=%.0f requested for file %s\n",
lock_type_name(lock_type), (double)offset, (double)count,
smbstrA(fsp->fsp_name)));
if (OPEN_FSP(fsp) && fsp->can_lock && (fsp->conn == conn))
{
ok = brl_lock(fsp->sbuf.st_dev, fsp->sbuf.st_ino, fsp->fnum,
smbpid, sys_getpid(), conn->snum,
offset, count, lock_type);
if (ok && lp_posix_locking(conn->snum))
{
/*
* Try and get a POSIX lock on this range.
* Note that this is ok if it is a read lock
* overlapping on a different fd. JRA.
*/
ok = set_posix_lock(fsp, offset, count, lock_type);
if (!ok)
{
/*
* We failed to map - we must now remove the brl
* lock entry.
*/
(void)brl_unlock(fsp->sbuf.st_dev,
fsp->sbuf.st_ino,
fsp->fnum,
smbpid,
sys_getpid(),
conn->snum, offset,
count);
}
}
}
if (!ok)
{
*err = NT_STATUS_LOCK_NOT_GRANTED;
return False;
}
return True; /* Got lock */
}
bool strict_lock_default(files_struct *fsp, struct lock_struct *plock)
{
int strict_locking = lp_strict_locking(fsp->conn->params);
bool ret = False;
if (plock->size == 0) {
return True;
}
if (!lp_locking(fsp->conn->params) || !strict_locking) {
return True;
}
if (strict_locking == Auto) {
if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type) && (plock->lock_type == READ_LOCK || plock->lock_type == WRITE_LOCK)) {
DEBUG(10,("is_locked: optimisation - exclusive oplock on file %s\n", fsp_str_dbg(fsp)));
ret = True;
} else if ((fsp->oplock_type == LEVEL_II_OPLOCK) &&
(plock->lock_type == READ_LOCK)) {
DEBUG(10,("is_locked: optimisation - level II oplock on file %s\n", fsp_str_dbg(fsp)));
ret = True;
} else {
struct byte_range_lock *br_lck;
br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
return True;
}
ret = brl_locktest(br_lck,
plock->context.smblctx,
plock->context.pid,
plock->start,
plock->size,
plock->lock_type,
plock->lock_flav);
}
} else {
struct byte_range_lock *br_lck;
br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
return True;
}
ret = brl_locktest(br_lck,
plock->context.smblctx,
plock->context.pid,
plock->start,
plock->size,
plock->lock_type,
plock->lock_flav);
}
DEBUG(10,("strict_lock_default: flavour = %s brl start=%.0f "
"len=%.0f %s for fnum %llu file %s\n",
lock_flav_name(plock->lock_flav),
(double)plock->start, (double)plock->size,
ret ? "unlocked" : "locked",
(unsigned long long)plock->fnum, fsp_str_dbg(fsp)));
return ret;
}
BOOL is_locked(files_struct *fsp,
SMB_BIG_UINT count,
SMB_BIG_UINT offset,
enum brl_type lock_type)
{
int snum = SNUM(fsp->conn);
int strict_locking = lp_strict_locking(snum);
enum brl_flavour lock_flav = lp_posix_cifsu_locktype();
BOOL ret = True;
if (count == 0) {
return False;
}
if (!lp_locking(snum) || !strict_locking) {
return False;
}
if (strict_locking == Auto) {
if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type) && (lock_type == READ_LOCK || lock_type == WRITE_LOCK)) {
DEBUG(10,("is_locked: optimisation - exclusive oplock on file %s\n", fsp->fsp_name ));
ret = False;
} else if ((fsp->oplock_type == LEVEL_II_OPLOCK) &&
(lock_type == READ_LOCK)) {
DEBUG(10,("is_locked: optimisation - level II oplock on file %s\n", fsp->fsp_name ));
ret = False;
} else {
struct byte_range_lock *br_lck = brl_get_locks(fsp);
if (!br_lck) {
return False;
}
ret = !brl_locktest(br_lck,
global_smbpid,
procid_self(),
offset,
count,
lock_type,
lock_flav);
byte_range_lock_destructor(br_lck);
}
} else {
struct byte_range_lock *br_lck = brl_get_locks(fsp);
if (!br_lck) {
return False;
}
ret = !brl_locktest(br_lck,
global_smbpid,
procid_self(),
offset,
count,
lock_type,
lock_flav);
byte_range_lock_destructor(br_lck);
}
DEBUG(10,("is_locked: flavour = %s brl start=%.0f len=%.0f %s for fnum %d file %s\n",
lock_flav_name(lock_flav),
(double)offset, (double)count, ret ? "locked" : "unlocked",
fsp->fnum, fsp->fsp_name ));
return ret;
}
int fd_close_posix(struct files_struct *fsp)
{
int saved_errno = 0;
int ret;
int *fd_array = NULL;
size_t count, i;
if (!lp_locking(fsp->conn->params) ||
!lp_posix_locking(fsp->conn->params))
{
/*
* No locking or POSIX to worry about or we want POSIX semantics
* which will lose all locks on all fd's open on this dev/inode,
* just close.
*/
return close(fsp->fh->fd);
}
if (get_windows_lock_ref_count(fsp)) {
/*
* There are outstanding locks on this dev/inode pair on
* other fds. Add our fd to the pending close tdb and set
* fsp->fh->fd to -1.
*/
add_fd_to_close_entry(fsp);
return 0;
}
/*
* No outstanding locks. Get the pending close fd's
* from the tdb and close them all.
*/
count = get_posix_pending_close_entries(talloc_tos(), fsp, &fd_array);
if (count) {
DEBUG(10,("fd_close_posix: doing close on %u fd's.\n",
(unsigned int)count));
for(i = 0; i < count; i++) {
if (close(fd_array[i]) == -1) {
saved_errno = errno;
}
}
/*
* Delete all fd's stored in the tdb
* for this dev/inode pair.
*/
delete_close_entries(fsp);
}
TALLOC_FREE(fd_array);
/* Don't need a lock ref count on this dev/ino anymore. */
delete_windows_lock_ref_count(fsp);
/*
* Finally close the fd associated with this fsp.
*/
ret = close(fsp->fh->fd);
if (ret == 0 && saved_errno != 0) {
errno = saved_errno;
ret = -1;
}
return ret;
}
