iscsi-target: Correctly set 0xffffffff field within ISCSI_OP_REJECT PDU

commit f25590f39d543272f7ae7b00d533359c8d7ff331 upstream.

This patch adds a missing iscsi_reject->ffffffff assignment within
iscsit_send_reject() code to properly follow RFC-3720 Section 10.17
Bytes 16 -> 19 for the PDU format definition of ISCSI_OP_REJECT.

We've not seen any initiators care about this bytes in practice, but
as Ronnie reported this was causing trouble with wireshark packet
decoding lets go ahead and fix this up now.

Reported-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 2ff1255850a3092fc38aff660b961086339294b6..81cf25fd8c568010779307bc93745611539a150e 100644 (file)
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -3357,6 +3357,7 @@ static int iscsit_send_reject(
        hdr->opcode             = ISCSI_OP_REJECT;
        hdr->flags              |= ISCSI_FLAG_CMD_FINAL;
        hton24(hdr->dlength, ISCSI_HDR_LEN);
+       hdr->ffffffff           = 0xffffffff;
        cmd->stat_sn            = conn->stat_sn++;
        hdr->statsn             = cpu_to_be32(cmd->stat_sn);
        hdr->exp_cmdsn  = cpu_to_be32(conn->sess->exp_cmd_sn);