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;
}
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;
}
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;
}
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;
}
