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cifs: remove rfc1002 header from smb2 read/write requests
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com> Acked-by: Pavel Shilovsky <pshilov@microsoft.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com>
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parent
ced93679cb
commit
f5688a6d7c
2 changed files with 23 additions and 30 deletions
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@ -2666,10 +2666,9 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
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struct smb2_read_plain_req *req = NULL;
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struct smb2_read_rsp *rsp = NULL;
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struct smb2_sync_hdr *shdr;
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struct kvec iov[2];
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struct kvec iov[1];
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struct kvec rsp_iov;
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unsigned int total_len;
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__be32 req_len;
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struct smb_rqst rqst = { .rq_iov = iov,
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.rq_nvec = 2 };
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int flags = CIFS_LOG_ERROR;
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@ -2683,14 +2682,10 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
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if (encryption_required(io_parms->tcon))
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flags |= CIFS_TRANSFORM_REQ;
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req_len = cpu_to_be32(total_len);
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iov[0].iov_base = (char *)req;
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iov[0].iov_len = total_len;
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iov[0].iov_base = &req_len;
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iov[0].iov_len = sizeof(__be32);
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iov[1].iov_base = req;
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iov[1].iov_len = total_len;
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rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);
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rc = smb2_send_recv(xid, ses, iov, 1, &resp_buftype, flags, &rsp_iov);
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cifs_small_buf_release(req);
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rsp = (struct smb2_read_rsp *)rsp_iov.iov_base;
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@ -2792,8 +2787,10 @@ smb2_async_writev(struct cifs_writedata *wdata,
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struct TCP_Server_Info *server = tcon->ses->server;
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struct kvec iov[2];
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struct smb_rqst rqst = { };
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unsigned int total_len;
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__be32 rfc1002_marker;
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rc = small_smb2_init(SMB2_WRITE, tcon, (void **) &req);
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rc = smb2_plain_req_init(SMB2_WRITE, tcon, (void **) &req, &total_len);
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if (rc) {
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if (rc == -EAGAIN && wdata->credits) {
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/* credits was reset by reconnect */
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@ -2809,7 +2806,7 @@ smb2_async_writev(struct cifs_writedata *wdata,
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if (encryption_required(tcon))
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flags |= CIFS_TRANSFORM_REQ;
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shdr = get_sync_hdr(req);
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shdr = (struct smb2_sync_hdr *)req;
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shdr->ProcessId = cpu_to_le32(wdata->cfile->pid);
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req->PersistentFileId = wdata->cfile->fid.persistent_fid;
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@ -2818,16 +2815,16 @@ smb2_async_writev(struct cifs_writedata *wdata,
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req->WriteChannelInfoLength = 0;
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req->Channel = 0;
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req->Offset = cpu_to_le64(wdata->offset);
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/* 4 for rfc1002 length field */
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req->DataOffset = cpu_to_le16(
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offsetof(struct smb2_write_req, Buffer) - 4);
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offsetof(struct smb2_write_req, Buffer));
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req->RemainingBytes = 0;
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/* 4 for rfc1002 length field and 1 for Buffer */
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iov[0].iov_len = 4;
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iov[0].iov_base = req;
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iov[1].iov_len = get_rfc1002_length(req) - 1;
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iov[1].iov_base = (char *)req + 4;
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rfc1002_marker = cpu_to_be32(total_len - 1 + wdata->bytes);
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iov[0].iov_base = &rfc1002_marker;
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iov[1].iov_len = total_len - 1;
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iov[1].iov_base = (char *)req;
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rqst.rq_iov = iov;
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rqst.rq_nvec = 2;
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@ -2841,8 +2838,6 @@ smb2_async_writev(struct cifs_writedata *wdata,
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req->Length = cpu_to_le32(wdata->bytes);
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inc_rfc1001_len(&req->hdr, wdata->bytes - 1 /* Buffer */);
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if (wdata->credits) {
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shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(wdata->bytes,
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SMB2_MAX_BUFFER_SIZE));
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@ -2885,13 +2880,15 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
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int resp_buftype;
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struct kvec rsp_iov;
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int flags = 0;
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unsigned int total_len;
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*nbytes = 0;
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if (n_vec < 1)
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return rc;
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rc = small_smb2_init(SMB2_WRITE, io_parms->tcon, (void **) &req);
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rc = smb2_plain_req_init(SMB2_WRITE, io_parms->tcon, (void **) &req,
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&total_len);
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if (rc)
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return rc;
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@ -2901,7 +2898,7 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
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if (encryption_required(io_parms->tcon))
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flags |= CIFS_TRANSFORM_REQ;
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req->hdr.sync_hdr.ProcessId = cpu_to_le32(io_parms->pid);
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req->sync_hdr.ProcessId = cpu_to_le32(io_parms->pid);
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req->PersistentFileId = io_parms->persistent_fid;
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req->VolatileFileId = io_parms->volatile_fid;
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@ -2910,20 +2907,16 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
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req->Channel = 0;
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req->Length = cpu_to_le32(io_parms->length);
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req->Offset = cpu_to_le64(io_parms->offset);
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/* 4 for rfc1002 length field */
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req->DataOffset = cpu_to_le16(
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offsetof(struct smb2_write_req, Buffer) - 4);
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offsetof(struct smb2_write_req, Buffer));
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req->RemainingBytes = 0;
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iov[0].iov_base = (char *)req;
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/* 4 for rfc1002 length field and 1 for Buffer */
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iov[0].iov_len = get_rfc1002_length(req) + 4 - 1;
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/* 1 for Buffer */
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iov[0].iov_len = total_len - 1;
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/* length of entire message including data to be written */
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inc_rfc1001_len(req, io_parms->length - 1 /* Buffer */);
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rc = SendReceive2(xid, io_parms->tcon->ses, iov, n_vec + 1,
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&resp_buftype, flags, &rsp_iov);
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rc = smb2_send_recv(xid, io_parms->tcon->ses, iov, n_vec + 1,
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&resp_buftype, flags, &rsp_iov);
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cifs_small_buf_release(req);
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rsp = (struct smb2_write_rsp *)rsp_iov.iov_base;
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@ -868,7 +868,7 @@ struct smb2_read_rsp {
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#define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002 /* SMB3.02 or later */
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struct smb2_write_req {
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struct smb2_hdr hdr;
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struct smb2_sync_hdr sync_hdr;
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__le16 StructureSize; /* Must be 49 */
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__le16 DataOffset; /* offset from start of SMB2 header to write data */
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__le32 Length;
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