smb/client/smb2pdu.c

1013 add_posix_context(struct kvec *iov, unsigned int *num_iovec, umode_t mode)
1017 	iov[num].iov_base = create_posix_buf(mode);
1020 	if (iov[num].iov_base == NULL)
1022 	iov[num].iov_len = sizeof(struct create_posix);
1051 	struct kvec iov[1];
1124 	iov[0].iov_base = (char *)req;
1125 	iov[0].iov_len = total_len;
1128 	rqst.rq_iov = iov;
1457 	struct kvec iov[2];
1523 	sess_data->iov[0].iov_base = (char *)req;
1525 	sess_data->iov[0].iov_len = total_len - 1;
1538 	struct kvec *iov = sess_data->iov;
1540 	/* iov[1] is already freed by caller */
1541 	if (sess_data->buf0_type != CIFS_NO_BUFFER && iov[0].iov_base)
1542 		memzero_explicit(iov[0].iov_base, iov[0].iov_len);
1544 	free_rsp_buf(sess_data->buf0_type, iov[0].iov_base);
1553 	struct smb2_sess_setup_req *req = sess_data->iov[0].iov_base;
1559 	req->SecurityBufferLength = cpu_to_le16(sess_data->iov[1].iov_len);
1562 	rqst.rq_iov = sess_data->iov;
1571 	cifs_small_buf_release(sess_data->iov[0].iov_base);
1577 	memcpy(&sess_data->iov[0], &rsp_iov, sizeof(struct kvec));
1664 	sess_data->iov[1].iov_base = msg->data + msg->sesskey_len;
1665 	sess_data->iov[1].iov_len = msg->secblob_len;
1671 	rsp = (struct smb2_sess_setup_rsp *)sess_data->iov[0].iov_base;
1744 	sess_data->iov[1].iov_base = ntlmssp_blob;
1745 	sess_data->iov[1].iov_len = blob_length;
1748 	rsp = (struct smb2_sess_setup_rsp *)sess_data->iov[0].iov_base;
1814 	req = (struct smb2_sess_setup_req *) sess_data->iov[0].iov_base;
1831 	sess_data->iov[1].iov_base = ntlmssp_blob;
1832 	sess_data->iov[1].iov_len = blob_length;
1838 	rsp = (struct smb2_sess_setup_rsp *)sess_data->iov[0].iov_base;
1960 	struct kvec iov[1];
1994 	iov[0].iov_base = (char *)req;
1995 	iov[0].iov_len = total_len;
1998 	rqst.rq_iov = iov;
2035 	struct kvec iov[2];
2074 	iov[0].iov_base = (char *)req;
2076 	iov[0].iov_len = total_len - 1;
2081 	iov[1].iov_base = unc_path;
2082 	iov[1].iov_len = unc_path_len;
2097 	rqst.rq_iov = iov;
2179 	struct kvec iov[1];
2210 	iov[0].iov_base = (char *)req;
2211 	iov[0].iov_len = total_len;
2214 	rqst.rq_iov = iov;
2405 		  struct kvec *iov,
2410 	iov[num].iov_base = server->ops->create_lease_buf(lease_key, *oplock);
2411 	if (iov[num].iov_base == NULL)
2413 	iov[num].iov_len = server->vals->create_lease_size;
2495 add_durable_v2_context(struct kvec *iov, unsigned int *num_iovec,
2500 	iov[num].iov_base = create_durable_v2_buf(oparms);
2501 	if (iov[num].iov_base == NULL)
2503 	iov[num].iov_len = sizeof(struct create_durable_v2);
2509 add_durable_reconnect_v2_context(struct kvec *iov, unsigned int *num_iovec,
2517 	iov[num].iov_base = create_reconnect_durable_v2_buf(oparms->fid);
2518 	if (iov[num].iov_base == NULL)
2520 	iov[num].iov_len = sizeof(struct create_durable_handle_reconnect_v2);
2526 add_durable_context(struct kvec *iov, unsigned int *num_iovec,
2533 			return add_durable_reconnect_v2_context(iov, num_iovec,
2536 			return add_durable_v2_context(iov, num_iovec, oparms);
2540 		iov[num].iov_base = create_reconnect_durable_buf(oparms->fid);
2544 		iov[num].iov_base = create_durable_buf();
2545 	if (iov[num].iov_base == NULL)
2547 	iov[num].iov_len = sizeof(struct create_durable);
2579 add_twarp_context(struct kvec *iov, unsigned int *num_iovec, __u64 timewarp)
2583 	iov[num].iov_base = create_twarp_buf(timewarp);
2584 	if (iov[num].iov_base == NULL)
2586 	iov[num].iov_len = sizeof(struct crt_twarp_ctxt);
2707 add_sd_context(struct kvec *iov, unsigned int *num_iovec, umode_t mode, bool set_owner)
2712 	iov[num].iov_base = create_sd_buf(mode, set_owner, &len);
2713 	if (iov[num].iov_base == NULL)
2715 	iov[num].iov_len = len;
2744 add_query_id_context(struct kvec *iov, unsigned int *num_iovec)
2748 	iov[num].iov_base = create_query_id_buf();
2749 	if (iov[num].iov_base == NULL)
2751 	iov[num].iov_len = sizeof(struct crt_query_id_ctxt);
2759 	struct kvec *iov = oparms->ea_cctx;
2761 	if (iov && iov->iov_base && iov->iov_len) {
2762 		rq_iov[(*num_iovs)++] = *iov;
2763 		memset(iov, 0, sizeof(*iov));
2822 	struct kvec iov[3]; /* make sure at least one for each open context */
2874 	iov[0].iov_base = (char *)req;
2876 	iov[0].iov_len = total_len - 1;
2923 	iov[1].iov_len = uni_path_len;
2924 	iov[1].iov_base = utf16_path;
2929 		rc = add_posix_context(iov, &n_iov, mode);
2934 			iov[1].iov_len);
2935 		pc_buf = iov[n_iov-1].iov_base;
2940 	rqst.rq_iov = iov;
3006 	struct kvec *iov = rqst->rq_iov;
3015 	iov[0].iov_base = (char *)req;
3017 	iov[0].iov_len = total_len - 1;
3068 	iov[1].iov_len = uni_path_len;
3069 	iov[1].iov_base = path;
3081 		rc = add_lease_context(server, req, iov, &n_iov,
3088 		rc = add_durable_context(iov, &n_iov, oparms,
3095 		rc = add_posix_context(iov, &n_iov, oparms->mode);
3102 		rc = add_twarp_context(iov, &n_iov, tcon->snapshot_time);
3126 			rc = add_sd_context(iov, &n_iov, oparms->mode, set_owner);
3132 	add_query_id_context(iov, &n_iov);
3133 	add_ea_context(oparms, iov, &n_iov);
3137 		 * We have create contexts behind iov[1] (the file
3142 			iov[1].iov_len);
3146 			struct kvec *v = &iov[i];
3155 			     iov[n_iov-1].iov_len);
3189 	struct kvec iov[SMB2_CREATE_IOV_SIZE];
3210 	memset(&iov, 0, sizeof(iov));
3211 	rqst.rq_iov = iov;
3294 	struct kvec *iov = rqst->rq_iov;
3329 	iov[0].iov_base = (char *)req;
3344 		iov[0].iov_len = total_len - 1;
3345 		iov[1].iov_base = in_data_buf;
3346 		iov[1].iov_len = indatalen;
3349 		iov[0].iov_len = total_len;
3411 	struct kvec iov[SMB2_IOCTL_IOV_SIZE];
3446 	memset(&iov, 0, sizeof(iov));
3447 	rqst.rq_iov = iov;
3568 	struct kvec *iov = rqst->rq_iov;
3583 	iov[0].iov_base = (char *)req;
3584 	iov[0].iov_len = total_len;
3605 	struct kvec iov[1];
3628 	memset(&iov, 0, sizeof(iov));
3629 	rqst.rq_iov = iov;
3696 		  struct kvec *iov, unsigned int min_buf_size)
3698 	unsigned int smb_len = iov->iov_len;
3699 	char *end_of_smb = smb_len + (char *)iov->iov_base;
3700 	char *begin_of_buf = offset + (char *)iov->iov_base;
3731 			   struct kvec *iov, unsigned int minbufsize,
3734 	char *begin_of_buf = offset + (char *)iov->iov_base;
3740 	rc = smb2_validate_iov(offset, buffer_length, iov, minbufsize);
3757 	struct kvec *iov = rqst->rq_iov;
3785 	iov[0].iov_base = (char *)req;
3787 	iov[0].iov_len = len;
3806 	struct kvec iov[1];
3834 	memset(&iov, 0, sizeof(iov));
3835 	rqst.rq_iov = iov;
3965 	struct kvec *iov = rqst->rq_iov;
3985 	iov[0].iov_base = (char *)req;
3986 	iov[0].iov_len = total_len;
4001 	struct kvec iov[1];
4021 	memset(&iov, 0, sizeof(iov));
4025 	rqst.rq_iov = iov;
4248 	struct kvec iov[1];
4249 	struct smb_rqst rqst = { .rq_iov = iov,
4272 	iov[0].iov_len = total_len;
4273 	iov[0].iov_base = (char *)req;
4297 	struct kvec *iov = rqst->rq_iov;
4309 	iov[0].iov_base = (char *)req;
4310 	iov[0].iov_len = total_len;
4321 	struct kvec iov[1];
4342 	memset(&iov, 0, sizeof(iov));
4343 	rqst.rq_iov = iov;
4510 				(struct smb2_hdr *)rdata->iov[0].iov_base;
4512 	struct smb_rqst rqst = { .rq_iov = &rdata->iov[1], .rq_nvec = 1 };
4599 	struct smb_rqst rqst = { .rq_iov = rdata->iov,
4628 	rdata->iov[0].iov_base = buf;
4629 	rdata->iov[0].iov_len = total_len;
4678 	struct kvec iov[1];
4695 	iov[0].iov_base = (char *)req;
4696 	iov[0].iov_len = total_len;
4699 	rqst.rq_iov = iov;
4847 	struct kvec iov[1];
4932 	iov[0].iov_len = total_len - 1;
4933 	iov[0].iov_base = (char *)req;
4935 	rqst.rq_iov = iov;
4943 		iov[0].iov_len += sizeof(struct smbd_buffer_descriptor_v1);
4996  * SMB2_write function gets iov pointer to kvec array with n_vec as a length.
4998  * elements with data to write that begins with position 1 in iov array. All
5003 	   unsigned int *nbytes, struct kvec *iov, int n_vec)
5054 	iov[0].iov_base = (char *)req;
5056 	iov[0].iov_len = total_len - 1;
5059 	rqst.rq_iov = iov;
5258 	struct kvec *iov = rqst->rq_iov;
5304 	iov[0].iov_base = (char *)req;
5306 	iov[0].iov_len = total_len - 1;
5308 	iov[1].iov_base = (char *)(req->Buffer);
5309 	iov[1].iov_len = len;
5405 	struct kvec iov[SMB2_QUERY_DIRECTORY_IOV_SIZE];
5427 	memset(&iov, 0, sizeof(iov));
5428 	rqst.rq_iov = iov;
5491 	struct kvec *iov = rqst->rq_iov;
5513 	iov[0].iov_base = (char *)req;
5515 	iov[0].iov_len = total_len - 1;
5519 		iov[i].iov_base = (char *)data[i];
5520 		iov[i].iov_len = size[i];
5541 	struct kvec *iov;
5564 	iov = kmalloc_array(num, sizeof(struct kvec), GFP_KERNEL);
5565 	if (!iov)
5569 	rqst.rq_iov = iov;
5577 		kfree(iov);
5597 	kfree(iov);
5658 	struct kvec iov[1];
5684 	iov[0].iov_base = (char *)req;
5685 	iov[0].iov_len = total_len;
5688 	rqst.rq_iov = iov;
5741 build_qfs_info_req(struct kvec *iov, struct cifs_tcon *tcon,
5770 	iov->iov_base = (char *)req;
5771 	iov->iov_len = total_len;
5775 static inline void free_qfs_info_req(struct kvec *iov)
5777 	cifs_buf_release(iov->iov_base);
5786 	struct kvec iov;
5801 	rc = build_qfs_info_req(&iov, tcon, server,
5812 	rqst.rq_iov = &iov;
5820 	free_qfs_info_req(&iov);
5851 	struct kvec iov;
5866 	rc = build_qfs_info_req(&iov, tcon, server,
5877 	rqst.rq_iov = &iov;
5885 	free_qfs_info_req(&iov);
5916 	struct kvec iov;
5948 	rc = build_qfs_info_req(&iov, tcon, server,
5958 	rqst.rq_iov = &iov;
5966 	free_qfs_info_req(&iov);
6017 	struct kvec iov[2];
6049 	iov[0].iov_base = (char *)req;
6050 	iov[0].iov_len = total_len - sizeof(struct smb2_lock_element);
6051 	iov[1].iov_base = (char *)buf;
6052 	iov[1].iov_len = count;
6057 	rqst.rq_iov = iov;
6108 	struct kvec iov[1];
6133 	iov[0].iov_base = (char *)req;
6134 	iov[0].iov_len = total_len;
6137 	rqst.rq_iov = iov;