iscsi-target: Convert incoming PDU payload checks to MaxXmitDataSegmentLength

Now that iscsi-target supports a local configurable MaxXmitDataSegmentLength,
go ahead and make ISCSI_OP_SCSI_CMD, ISCSI_OP_SCSI_DATA_OUT, ISCSI_OP_NOOP_OUT
and ISCSI_OP_TEXT PDU payload checks honor conn_ops->MaxXmitDataSegmentLength.

Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: Andy Grover <agrover@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 30842e1..632a5ae 100644 (file)
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -869,10 +869,10 @@ done:
                                buf, conn);
        }
 
-       if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+       if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
                pr_err("DataSegmentLength: %u is greater than"
-                       " MaxRecvDataSegmentLength: %u, protocol error.\n",
-                       payload_length, conn->conn_ops->MaxRecvDataSegmentLength);
+                       " MaxXmitDataSegmentLength: %u, protocol error.\n",
+                       payload_length, conn->conn_ops->MaxXmitDataSegmentLength);
                return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
                                buf, conn);
        }
@@ -1216,10 +1216,10 @@ static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf)
        }
        spin_unlock_bh(&conn->sess->session_stats_lock);
 
-       if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+       if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
                pr_err("DataSegmentLength: %u is greater than"
-                       " MaxRecvDataSegmentLength: %u\n", payload_length,
-                       conn->conn_ops->MaxRecvDataSegmentLength);
+                       " MaxXmitDataSegmentLength: %u\n", payload_length,
+                       conn->conn_ops->MaxXmitDataSegmentLength);
                return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
                                        buf, conn);
        }
@@ -1437,11 +1437,11 @@ static int iscsit_handle_nop_out(
                                        buf, conn);
        }
 
-       if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+       if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
                pr_err("NOPOUT Ping Data DataSegmentLength: %u is"
-                       " greater than MaxRecvDataSegmentLength: %u, protocol"
+                       " greater than MaxXmitDataSegmentLength: %u, protocol"
                        " error.\n", payload_length,
-                       conn->conn_ops->MaxRecvDataSegmentLength);
+                       conn->conn_ops->MaxXmitDataSegmentLength);
                return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
                                        buf, conn);
        }
@@ -1874,10 +1874,10 @@ static int iscsit_handle_text_cmd(
        hdr->cmdsn              = be32_to_cpu(hdr->cmdsn);
        hdr->exp_statsn         = be32_to_cpu(hdr->exp_statsn);
 
-       if (payload_length > conn->conn_ops->MaxRecvDataSegmentLength) {
+       if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
                pr_err("Unable to accept text parameter length: %u"
-                       "greater than MaxRecvDataSegmentLength %u.\n",
-                      payload_length, conn->conn_ops->MaxRecvDataSegmentLength);
+                       "greater than MaxXmitDataSegmentLength %u.\n",
+                      payload_length, conn->conn_ops->MaxXmitDataSegmentLength);
                return iscsit_add_reject(ISCSI_REASON_PROTOCOL_ERROR, 1,
                                        buf, conn);
        }