diff options
Diffstat (limited to 'drivers/scsi/iscsi_tcp.c')
| -rw-r--r-- | drivers/scsi/iscsi_tcp.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 17fc79c408a2..b2827d112cb0 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -216,6 +216,7 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; struct iscsi_data_rsp *rhdr = (struct iscsi_data_rsp *)tcp_conn->in.hdr; struct iscsi_session *session = conn->session; + struct scsi_cmnd *sc = ctask->sc; int datasn = be32_to_cpu(rhdr->datasn); rc = iscsi_check_assign_cmdsn(session, (struct iscsi_nopin*)rhdr); @@ -238,12 +239,14 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) tcp_ctask->exp_datasn++; tcp_ctask->data_offset = be32_to_cpu(rhdr->offset); - if (tcp_ctask->data_offset + tcp_conn->in.datalen > ctask->total_length) + if (tcp_ctask->data_offset + tcp_conn->in.datalen > sc->request_bufflen) { + debug_tcp("%s: data_offset(%d) + data_len(%d) > total_length_in(%d)\n", + __FUNCTION__, tcp_ctask->data_offset, + tcp_conn->in.datalen, sc->request_bufflen); return ISCSI_ERR_DATA_OFFSET; + } if (rhdr->flags & ISCSI_FLAG_DATA_STATUS) { - struct scsi_cmnd *sc = ctask->sc; - conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1; if (rhdr->flags & ISCSI_FLAG_DATA_UNDERFLOW) { int res_count = be32_to_cpu(rhdr->residual_count); @@ -405,11 +408,11 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) r2t->data_length, session->max_burst); r2t->data_offset = be32_to_cpu(rhdr->data_offset); - if (r2t->data_offset + r2t->data_length > ctask->total_length) { + if (r2t->data_offset + r2t->data_length > ctask->sc->request_bufflen) { spin_unlock(&session->lock); printk(KERN_ERR "iscsi_tcp: invalid R2T with data len %u at " "offset %u and total length %d\n", r2t->data_length, - r2t->data_offset, ctask->total_length); + r2t->data_offset, ctask->sc->request_bufflen); return ISCSI_ERR_DATALEN; } @@ -604,7 +607,7 @@ iscsi_ctask_copy(struct iscsi_tcp_conn *tcp_conn, struct iscsi_cmd_task *ctask, { struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; int buf_left = buf_size - (tcp_conn->data_copied + offset); - int size = min(tcp_conn->in.copy, buf_left); + unsigned size = min(tcp_conn->in.copy, buf_left); int rc; size = min(size, ctask->data_count); @@ -613,7 +616,7 @@ iscsi_ctask_copy(struct iscsi_tcp_conn *tcp_conn, struct iscsi_cmd_task *ctask, size, tcp_conn->in.offset, tcp_conn->in.copied); BUG_ON(size <= 0); - BUG_ON(tcp_ctask->sent + size > ctask->total_length); + BUG_ON(tcp_ctask->sent + size > ctask->sc->request_bufflen); rc = skb_copy_bits(tcp_conn->in.skb, tcp_conn->in.offset, (char*)buf + (offset + tcp_conn->data_copied), size); @@ -1292,7 +1295,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask) if (sc->sc_data_direction == DMA_TO_DEVICE) { tcp_ctask->xmstate = XMSTATE_W_HDR; - BUG_ON(ctask->total_length == 0); + BUG_ON(sc->request_bufflen == 0); if (sc->use_sg) { struct scatterlist *sg = sc->request_buffer; @@ -1309,7 +1312,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask) } debug_scsi("cmd [itt 0x%x total %d imm_data %d " "unsol count %d, unsol offset %d]\n", - ctask->itt, ctask->total_length, ctask->imm_count, + ctask->itt, sc->request_bufflen, ctask->imm_count, ctask->unsol_count, ctask->unsol_offset); } else tcp_ctask->xmstate = XMSTATE_R_HDR; |