diff options
Diffstat (limited to 'source3/locking/brlock.c')
| -rw-r--r-- | source3/locking/brlock.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/source3/locking/brlock.c b/source3/locking/brlock.c index d48c746161..f3e4042d8a 100644 --- a/source3/locking/brlock.c +++ b/source3/locking/brlock.c @@ -313,7 +313,7 @@ static int lock_compare(const struct lock_struct *lck1, ****************************************************************************/ static NTSTATUS brl_lock_windows(struct byte_range_lock *br_lck, - const struct lock_struct *plock, BOOL blocking_lock) + struct lock_struct *plock, BOOL blocking_lock) { unsigned int i; files_struct *fsp = br_lck->fsp; @@ -322,6 +322,8 @@ static NTSTATUS brl_lock_windows(struct byte_range_lock *br_lck, for (i=0; i < br_lck->num_locks; i++) { /* Do any Windows or POSIX locks conflict ? */ if (brl_conflict(&locks[i], plock)) { + /* Remember who blocked us. */ + plock->context.smbpid = locks[i].context.smbpid; return brl_lock_failed(fsp,plock,blocking_lock); } #if ZERO_ZERO @@ -346,6 +348,10 @@ static NTSTATUS brl_lock_windows(struct byte_range_lock *br_lck, locks, br_lck->num_locks, &errno_ret)) { + + /* We don't know who blocked us. */ + plock->context.smbpid = 0xFFFFFFFF; + if (errno_ret == EACCES || errno_ret == EAGAIN) { return NT_STATUS_FILE_LOCK_CONFLICT; } else { @@ -586,7 +592,7 @@ OR static NTSTATUS brl_lock_posix(struct messaging_context *msg_ctx, struct byte_range_lock *br_lck, - const struct lock_struct *plock) + struct lock_struct *plock) { unsigned int i, count; struct lock_struct *locks = br_lck->lock_data; @@ -630,6 +636,8 @@ static NTSTATUS brl_lock_posix(struct messaging_context *msg_ctx, if (brl_conflict(curr_lock, plock)) { /* No games with error messages. */ SAFE_FREE(tp); + /* Remember who blocked us. */ + plock->context.smbpid = curr_lock->context.smbpid; return NT_STATUS_FILE_LOCK_CONFLICT; } /* Just copy the Windows lock into the new array. */ @@ -641,6 +649,8 @@ static NTSTATUS brl_lock_posix(struct messaging_context *msg_ctx, /* Can't block ourselves with POSIX locks. */ /* No games with error messages. */ SAFE_FREE(tp); + /* Remember who blocked us. */ + plock->context.smbpid = curr_lock->context.smbpid; return NT_STATUS_FILE_LOCK_CONFLICT; } @@ -670,6 +680,10 @@ static NTSTATUS brl_lock_posix(struct messaging_context *msg_ctx, plock->size, plock->lock_type, &errno_ret)) { + + /* We don't know who blocked us. */ + plock->context.smbpid = 0xFFFFFFFF; + if (errno_ret == EACCES || errno_ret == EAGAIN) { SAFE_FREE(tp); return NT_STATUS_FILE_LOCK_CONFLICT; @@ -730,7 +744,8 @@ NTSTATUS brl_lock(struct messaging_context *msg_ctx, br_off size, enum brl_type lock_type, enum brl_flavour lock_flav, - BOOL blocking_lock) + BOOL blocking_lock, + uint32 *psmbpid) { NTSTATUS ret; struct lock_struct lock; @@ -761,6 +776,10 @@ NTSTATUS brl_lock(struct messaging_context *msg_ctx, qsort(br_lck->lock_data, (size_t)br_lck->num_locks, sizeof(lock), lock_compare); #endif + /* If we're returning an error, return who blocked us. */ + if (!NT_STATUS_IS_OK(ret) && psmbpid) { + *psmbpid = lock.context.smbpid; + } return ret; } |