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cifs: add SMB2_close_init()/SMB2_close_free()

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Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.com>
This commit is contained in:
Ronnie Sahlberg 2018-08-01 09:26:16 +10:00 committed by Steve French
parent 468d677954
commit 8eb4ecfab0
2 changed files with 37 additions and 14 deletions
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48
fs/cifs/smb2pdu.c
View File

@ -2444,44 +2444,63 @@ SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
return rc;
}
int
SMB2_close_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,
u64 persistent_fid, u64 volatile_fid)
{
struct smb2_close_req *req;
struct kvec *iov = rqst->rq_iov;
unsigned int total_len;
int rc;
rc = smb2_plain_req_init(SMB2_CLOSE, tcon, (void **) &req, &total_len);
if (rc)
return rc;
req->PersistentFileId = persistent_fid;
req->VolatileFileId = volatile_fid;
iov[0].iov_base = (char *)req;
iov[0].iov_len = total_len;
return 0;
}
void
SMB2_close_free(struct smb_rqst *rqst)
{
cifs_small_buf_release(rqst->rq_iov[0].iov_base); /* request */
}
int
SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid, int flags)
{
struct smb_rqst rqst;
struct smb2_close_req *req;
struct smb2_close_rsp *rsp;
struct smb2_close_rsp *rsp = NULL;
struct cifs_ses *ses = tcon->ses;
struct kvec iov[1];
struct kvec rsp_iov;
int resp_buftype;
int rc = 0;
unsigned int total_len;
cifs_dbg(FYI, "Close\n");
if (!ses || !(ses->server))
return -EIO;
rc = smb2_plain_req_init(SMB2_CLOSE, tcon, (void **) &req, &total_len);
if (rc)
return rc;
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
req->PersistentFileId = persistent_fid;
req->VolatileFileId = volatile_fid;
iov[0].iov_base = (char *)req;
iov[0].iov_len = total_len;
memset(&rqst, 0, sizeof(struct smb_rqst));
memset(&iov, 0, sizeof(iov));
rqst.rq_iov = iov;
rqst.rq_nvec = 1;
rc = SMB2_close_init(tcon, &rqst, persistent_fid, volatile_fid);
if (rc)
goto close_exit;
rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);
cifs_small_buf_release(req);
rsp = (struct smb2_close_rsp *)rsp_iov.iov_base;
if (rc != 0) {
@ -2494,6 +2513,7 @@ SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
/* BB FIXME - decode close response, update inode for caching */
close_exit:
SMB2_close_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
return rc;
}

3
fs/cifs/smb2proto.h
View File

@ -141,6 +141,9 @@ extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_file_id, u64 volatile_file_id);
extern int SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid, int flags);
extern int SMB2_close_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,
u64 persistent_file_id, u64 volatile_file_id);
extern void SMB2_close_free(struct smb_rqst *rqst);
extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_file_id, u64 volatile_file_id);
extern int SMB2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,