diff options
Diffstat (limited to 'source4/ntvfs/common/opendb.c')
| -rw-r--r-- | source4/ntvfs/common/opendb.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/source4/ntvfs/common/opendb.c b/source4/ntvfs/common/opendb.c index a07b657c33..64bed53c8b 100644 --- a/source4/ntvfs/common/opendb.c +++ b/source4/ntvfs/common/opendb.c @@ -54,6 +54,7 @@ struct odb_context { struct odb_entry { servid_t server; void *file_handle; + uint32_t stream_id; uint32_t share_access; uint32_t create_options; uint32_t access_mask; @@ -167,14 +168,20 @@ static BOOL share_conflict(struct odb_entry *e1, struct odb_entry *e2) return False; } - /* check the basic share access */ + /* data IO access masks. This is skipped if the two open handles + are on different streams (as in that case the masks don't + interact) */ + if (e1->stream_id != e2->stream_id) { + return False; + } + CHECK_MASK(e1->access_mask, e2->share_access, SA_RIGHT_FILE_WRITE_APPEND, NTCREATEX_SHARE_ACCESS_WRITE); CHECK_MASK(e2->access_mask, e1->share_access, SA_RIGHT_FILE_WRITE_APPEND, NTCREATEX_SHARE_ACCESS_WRITE); - + CHECK_MASK(e1->access_mask, e2->share_access, SA_RIGHT_FILE_READ_EXEC, NTCREATEX_SHARE_ACCESS_READ); @@ -203,6 +210,7 @@ static BOOL share_conflict(struct odb_entry *e1, struct odb_entry *e2) rules */ NTSTATUS odb_open_file(struct odb_lock *lck, void *file_handle, + uint32_t stream_id, uint32_t share_access, uint32_t create_options, uint32_t access_mask) { @@ -217,6 +225,7 @@ NTSTATUS odb_open_file(struct odb_lock *lck, void *file_handle, e.server = odb->server; e.file_handle = file_handle; + e.stream_id = stream_id; e.share_access = share_access; e.create_options = create_options; e.access_mask = access_mask; @@ -273,6 +282,7 @@ NTSTATUS odb_open_file_pending(struct odb_lock *lck, void *private) e.server = odb->server; e.file_handle = NULL; + e.stream_id = 0; e.share_access = 0; e.create_options = 0; e.access_mask = 0; @@ -496,6 +506,7 @@ NTSTATUS odb_can_open(struct odb_context *odb, DATA_BLOB *key, e.server = odb->server; e.file_handle = NULL; + e.stream_id = 0; e.share_access = share_access; e.create_options = create_options; e.access_mask = access_mask; |