[SCSI] iscsi: iscsi response fix (733bb6a7) · Commits · 戴 / test

from Wang Zhenyu: Must check SCSI CMD and R2T response according to the spec Signed-off-by:

drivers/scsi/iscsi_tcp.c

+2 −5

Original line number	Diff line number	Diff line
		@@ -642,9 +642,7 @@ iscsi_hdr_recv(struct iscsi_conn *conn)
		switch(conn->in.opcode) {
		case ISCSI_OP_SCSI_CMD_RSP:
		BUG_ON((void*)ctask != ctask->sc->SCp.ptr);
		if (ctask->hdr.flags & ISCSI_FLAG_CMD_WRITE)
		rc = iscsi_cmd_rsp(conn, ctask);
		else if (!conn->in.datalen)
		if (!conn->in.datalen)
		rc = iscsi_cmd_rsp(conn, ctask);
		else
		/*
		@@ -666,8 +664,7 @@ iscsi_hdr_recv(struct iscsi_conn *conn)
		break;
		case ISCSI_OP_R2T:
		BUG_ON((void*)ctask != ctask->sc->SCp.ptr);
		if (ctask->hdr.flags & ISCSI_FLAG_CMD_WRITE &&
		ctask->sc->sc_data_direction == DMA_TO_DEVICE)
		if (ctask->sc->sc_data_direction == DMA_TO_DEVICE)
		rc = iscsi_r2t_rsp(conn, ctask);
		else
		rc = ISCSI_ERR_PROTO;