diff options
| -rw-r--r-- | fs/cifs/smb2ops.c | 8 | ||||
| -rw-r--r-- | fs/cifs/smb2pdu.c | 38 | ||||
| -rw-r--r-- | fs/cifs/smb2pdu.h | 15 | ||||
| -rw-r--r-- | fs/cifs/smb2proto.h | 2 |
4 files changed, 63 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 0fd58016825..d81e1daeb8f 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -329,6 +329,13 @@ smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon, return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); } +static int +smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon, + struct cifs_fid *fid) +{ + return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid); +} + struct smb_version_operations smb21_operations = { .setup_request = smb2_setup_request, .setup_async_request = smb2_setup_async_request, @@ -363,6 +370,7 @@ struct smb_version_operations smb21_operations = { .open = smb2_open_file, .set_fid = smb2_set_fid, .close = smb2_close_file, + .flush = smb2_flush_file, }; struct smb_version_values smb21_values = { diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 231e9701ab8..ff374063f4e 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1152,3 +1152,41 @@ SMB2_echo(struct TCP_Server_Info *server) cifs_small_buf_release(req); return rc; } + +int +SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, + u64 volatile_fid) +{ + struct smb2_flush_req *req; + struct TCP_Server_Info *server; + struct cifs_ses *ses = tcon->ses; + struct kvec iov[1]; + int resp_buftype; + int rc = 0; + + cFYI(1, "Flush"); + + if (ses && (ses->server)) + server = ses->server; + else + return -EIO; + + rc = small_smb2_init(SMB2_FLUSH, tcon, (void **) &req); + if (rc) + return rc; + + req->PersistentFileId = persistent_fid; + req->VolatileFileId = volatile_fid; + + iov[0].iov_base = (char *)req; + /* 4 for rfc1002 length field */ + iov[0].iov_len = get_rfc1002_length(req) + 4; + + rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, 0); + + if ((rc != 0) && tcon) + cifs_stats_fail_inc(tcon, SMB2_FLUSH_HE); + + free_rsp_buf(resp_buftype, iov[0].iov_base); + return rc; +} diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 0e962cbf816..f5bf63f6697 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -453,6 +453,21 @@ struct smb2_close_rsp { __le32 Attributes; } __packed; +struct smb2_flush_req { + struct smb2_hdr hdr; + __le16 StructureSize; /* Must be 24 */ + __le16 Reserved1; + __le32 Reserved2; + __u64 PersistentFileId; /* opaque endianness */ + __u64 VolatileFileId; /* opaque endianness */ +} __packed; + +struct smb2_flush_rsp { + struct smb2_hdr hdr; + __le16 StructureSize; + __le16 Reserved; +} __packed; + struct smb2_echo_req { struct smb2_hdr hdr; __le16 StructureSize; /* Must be 4 */ diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 624d344e1a5..51e6cd185c7 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -89,6 +89,8 @@ extern int SMB2_open(const unsigned int xid, struct cifs_tcon *tcon, struct smb2_file_all_info *buf); extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_file_id, u64 volatile_file_id); +extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, + u64 persistent_file_id, u64 volatile_file_id); extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_file_id, u64 volatile_file_id, struct smb2_file_all_info *data); |