diff options
| author | Pavel Shilovsky <pshilov@microsoft.com> | 2016-11-18 00:24:34 +0100 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2017-02-01 23:46:36 +0100 |
| commit | 9bb17e0916a03ab901fb684e874d77a1e96b3d1e (patch) | |
| tree | 5a4dc378ba0665c7c8f4684ad195c1294cba755f | |
| parent | CIFS: Encrypt SMB3 requests before sending (diff) | |
| download | linux-9bb17e0916a03ab901fb684e874d77a1e96b3d1e.tar.xz linux-9bb17e0916a03ab901fb684e874d77a1e96b3d1e.zip | |
CIFS: Add transform header handling callbacks
We need to recognize and parse transformed packets in demultiplex
thread to find a corresponsing mid and process it further.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
| -rw-r--r-- | fs/cifs/cifsglob.h | 3 | ||||
| -rw-r--r-- | fs/cifs/connect.c | 17 |
2 files changed, 15 insertions, 5 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 14196e00f79e..35cf62ba5416 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -440,6 +440,9 @@ struct smb_version_operations { struct smb_rqst *); /* free transform request */ void (*free_transform_rq)(struct smb_rqst *); + int (*is_transform_hdr)(void *buf); + int (*receive_transform)(struct TCP_Server_Info *, + struct mid_q_entry **); }; struct smb_version_values { diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index b84febf960e9..35faa6cb7f82 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -872,12 +872,19 @@ cifs_demultiplex_thread(void *p) continue; server->total_read += length; - mid_entry = server->ops->find_mid(server, buf); + if (server->ops->is_transform_hdr && + server->ops->receive_transform && + server->ops->is_transform_hdr(buf)) { + length = server->ops->receive_transform(server, + &mid_entry); + } else { + mid_entry = server->ops->find_mid(server, buf); - if (!mid_entry || !mid_entry->receive) - length = standard_receive3(server, mid_entry); - else - length = mid_entry->receive(server, mid_entry); + if (!mid_entry || !mid_entry->receive) + length = standard_receive3(server, mid_entry); + else + length = mid_entry->receive(server, mid_entry); + } if (length < 0) continue; |