mirror of https://gitee.com/openkylin/linux.git
libata-scsi: Set field pointer in sense code
If the sense code is 'Invalid field in CDB' we should be setting the field pointer to the offending byte. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
parent
78db6e3028
commit
bcfc867d46
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@ -300,6 +300,15 @@ void ata_scsi_set_sense_information(struct ata_device *dev,
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SCSI_SENSE_BUFFERSIZE, information);
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}
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static void ata_scsi_set_invalid_field(struct ata_device *dev,
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struct scsi_cmnd *cmd, u16 field)
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{
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ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x24, 0x0);
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/* "Invalid field in cbd" */
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scsi_set_sense_field_pointer(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
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field, 0xff, 1);
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}
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static ssize_t
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ata_scsi_em_message_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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@ -388,10 +397,9 @@ struct device_attribute *ata_common_sdev_attrs[] = {
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EXPORT_SYMBOL_GPL(ata_common_sdev_attrs);
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static void ata_scsi_invalid_field(struct ata_device *dev,
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struct scsi_cmnd *cmd)
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struct scsi_cmnd *cmd, u16 field)
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{
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ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x24, 0x0);
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/* "Invalid field in cbd" */
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ata_scsi_set_invalid_field(dev, cmd, field);
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cmd->scsi_done(cmd);
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}
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@ -1386,19 +1394,26 @@ static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc)
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struct scsi_cmnd *scmd = qc->scsicmd;
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struct ata_taskfile *tf = &qc->tf;
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const u8 *cdb = scmd->cmnd;
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u16 fp;
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if (scmd->cmd_len < 5)
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if (scmd->cmd_len < 5) {
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fp = 4;
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goto invalid_fld;
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}
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tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
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tf->protocol = ATA_PROT_NODATA;
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if (cdb[1] & 0x1) {
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; /* ignore IMMED bit, violates sat-r05 */
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}
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if (cdb[4] & 0x2)
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if (cdb[4] & 0x2) {
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fp = 4;
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goto invalid_fld; /* LOEJ bit set not supported */
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if (((cdb[4] >> 4) & 0xf) != 0)
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}
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if (((cdb[4] >> 4) & 0xf) != 0) {
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fp = 4;
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goto invalid_fld; /* power conditions not supported */
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}
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if (cdb[4] & 0x1) {
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tf->nsect = 1; /* 1 sector, lba=0 */
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@ -1444,8 +1459,7 @@ static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc)
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return 0;
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invalid_fld:
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ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x24, 0x0);
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/* "Invalid field in cbd" */
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ata_scsi_set_invalid_field(qc->dev, scmd, fp);
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return 1;
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skip:
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scmd->result = SAM_STAT_GOOD;
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@ -1596,20 +1610,27 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc)
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const u8 *cdb = scmd->cmnd;
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u64 block;
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u32 n_block;
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u16 fp;
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tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
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tf->protocol = ATA_PROT_NODATA;
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if (cdb[0] == VERIFY) {
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if (scmd->cmd_len < 10)
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if (scmd->cmd_len < 10) {
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fp = 9;
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goto invalid_fld;
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}
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scsi_10_lba_len(cdb, &block, &n_block);
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} else if (cdb[0] == VERIFY_16) {
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if (scmd->cmd_len < 16)
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if (scmd->cmd_len < 16) {
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fp = 15;
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goto invalid_fld;
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}
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scsi_16_lba_len(cdb, &block, &n_block);
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} else
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} else {
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fp = 0;
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goto invalid_fld;
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}
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if (!n_block)
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goto nothing_to_do;
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@ -1683,8 +1704,7 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc)
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return 0;
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invalid_fld:
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ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x24, 0x0);
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/* "Invalid field in cbd" */
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ata_scsi_set_invalid_field(qc->dev, scmd, fp);
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return 1;
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out_of_range:
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@ -1723,6 +1743,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc)
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u64 block;
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u32 n_block;
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int rc;
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u16 fp = 0;
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if (cdb[0] == WRITE_10 || cdb[0] == WRITE_6 || cdb[0] == WRITE_16)
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tf_flags |= ATA_TFLAG_WRITE;
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@ -1731,16 +1752,20 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc)
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switch (cdb[0]) {
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case READ_10:
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case WRITE_10:
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if (unlikely(scmd->cmd_len < 10))
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if (unlikely(scmd->cmd_len < 10)) {
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fp = 9;
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goto invalid_fld;
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}
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scsi_10_lba_len(cdb, &block, &n_block);
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if (cdb[1] & (1 << 3))
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tf_flags |= ATA_TFLAG_FUA;
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break;
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case READ_6:
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case WRITE_6:
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if (unlikely(scmd->cmd_len < 6))
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if (unlikely(scmd->cmd_len < 6)) {
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fp = 5;
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goto invalid_fld;
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}
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scsi_6_lba_len(cdb, &block, &n_block);
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/* for 6-byte r/w commands, transfer length 0
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@ -1751,14 +1776,17 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc)
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break;
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case READ_16:
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case WRITE_16:
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if (unlikely(scmd->cmd_len < 16))
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if (unlikely(scmd->cmd_len < 16)) {
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fp = 15;
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goto invalid_fld;
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}
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scsi_16_lba_len(cdb, &block, &n_block);
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if (cdb[1] & (1 << 3))
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tf_flags |= ATA_TFLAG_FUA;
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break;
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default:
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DPRINTK("no-byte command\n");
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fp = 0;
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goto invalid_fld;
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}
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@ -1785,8 +1813,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc)
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goto out_of_range;
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/* treat all other errors as -EINVAL, fall through */
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invalid_fld:
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ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x24, 0x0);
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/* "Invalid field in cbd" */
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ata_scsi_set_invalid_field(qc->dev, scmd, fp);
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return 1;
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out_of_range:
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@ -2445,6 +2472,7 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
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u8 pg, spg;
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unsigned int ebd, page_control, six_byte;
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u8 dpofua;
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u16 fp;
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VPRINTK("ENTER\n");
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@ -2463,6 +2491,7 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
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case 3: /* saved */
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goto saving_not_supp;
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default:
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fp = 2;
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goto invalid_fld;
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}
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@ -2477,8 +2506,10 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
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* No mode subpages supported (yet) but asking for _all_
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* subpages may be valid
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*/
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if (spg && (spg != ALL_SUB_MPAGES))
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if (spg && (spg != ALL_SUB_MPAGES)) {
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fp = 3;
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goto invalid_fld;
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}
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switch(pg) {
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case RW_RECOVERY_MPAGE:
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@ -2500,6 +2531,7 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
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break;
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default: /* invalid page code */
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fp = 2;
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goto invalid_fld;
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}
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@ -2529,8 +2561,7 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
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return 0;
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invalid_fld:
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ata_scsi_set_sense(dev, args->cmd, ILLEGAL_REQUEST, 0x24, 0x0);
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/* "Invalid field in cbd" */
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ata_scsi_set_invalid_field(dev, args->cmd, fp);
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return 1;
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saving_not_supp:
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@ -2991,9 +3022,12 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
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struct scsi_cmnd *scmd = qc->scsicmd;
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struct ata_device *dev = qc->dev;
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const u8 *cdb = scmd->cmnd;
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u16 fp;
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if ((tf->protocol = ata_scsi_map_proto(cdb[1])) == ATA_PROT_UNKNOWN)
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if ((tf->protocol = ata_scsi_map_proto(cdb[1])) == ATA_PROT_UNKNOWN) {
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fp = 1;
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goto invalid_fld;
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}
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/* enable LBA */
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tf->flags |= ATA_TFLAG_LBA;
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@ -3057,8 +3091,10 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
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case ATA_CMD_READ_LONG_ONCE:
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case ATA_CMD_WRITE_LONG:
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case ATA_CMD_WRITE_LONG_ONCE:
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if (tf->protocol != ATA_PROT_PIO || tf->nsect != 1)
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if (tf->protocol != ATA_PROT_PIO || tf->nsect != 1) {
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fp = 1;
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goto invalid_fld;
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}
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qc->sect_size = scsi_bufflen(scmd);
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break;
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@ -3121,12 +3157,16 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
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ata_qc_set_pc_nbytes(qc);
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/* We may not issue DMA commands if no DMA mode is set */
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if (tf->protocol == ATA_PROT_DMA && dev->dma_mode == 0)
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if (tf->protocol == ATA_PROT_DMA && dev->dma_mode == 0) {
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fp = 1;
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goto invalid_fld;
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}
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/* sanity check for pio multi commands */
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if ((cdb[1] & 0xe0) && !is_multi_taskfile(tf))
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if ((cdb[1] & 0xe0) && !is_multi_taskfile(tf)) {
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fp = 1;
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goto invalid_fld;
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}
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if (is_multi_taskfile(tf)) {
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unsigned int multi_count = 1 << (cdb[1] >> 5);
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@ -3147,8 +3187,10 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
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* ->set_dmamode(), and ->post_set_mode() hooks).
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*/
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if (tf->command == ATA_CMD_SET_FEATURES &&
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tf->feature == SETFEATURES_XFER)
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tf->feature == SETFEATURES_XFER) {
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fp = (cdb[0] == ATA_16) ? 4 : 3;
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goto invalid_fld;
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}
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/*
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* Filter TPM commands by default. These provide an
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@ -3165,14 +3207,15 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
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* so that we comply with the TC consortium stated goal that the user
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* can turn off TC features of their system.
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*/
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if (tf->command >= 0x5C && tf->command <= 0x5F && !libata_allow_tpm)
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if (tf->command >= 0x5C && tf->command <= 0x5F && !libata_allow_tpm) {
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fp = (cdb[0] == ATA_16) ? 14 : 9;
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goto invalid_fld;
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}
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return 0;
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invalid_fld:
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ata_scsi_set_sense(dev, scmd, ILLEGAL_REQUEST, 0x24, 0x00);
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/* "Invalid field in cdb" */
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ata_scsi_set_invalid_field(dev, scmd, fp);
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return 1;
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}
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@ -3186,25 +3229,30 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
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u32 n_block;
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u32 size;
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void *buf;
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u16 fp;
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/* we may not issue DMA commands if no DMA mode is set */
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if (unlikely(!dev->dma_mode))
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goto invalid_fld;
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goto invalid_opcode;
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if (unlikely(scmd->cmd_len < 16))
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if (unlikely(scmd->cmd_len < 16)) {
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fp = 15;
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goto invalid_fld;
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}
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scsi_16_lba_len(cdb, &block, &n_block);
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/* for now we only support WRITE SAME with the unmap bit set */
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if (unlikely(!(cdb[1] & 0x8)))
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if (unlikely(!(cdb[1] & 0x8))) {
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fp = 1;
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goto invalid_fld;
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}
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/*
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* WRITE SAME always has a sector sized buffer as payload, this
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* should never be a multiple entry S/G list.
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*/
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if (!scsi_sg_count(scmd))
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goto invalid_fld;
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goto invalid_param_len;
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buf = page_address(sg_page(scsi_sglist(scmd)));
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size = ata_set_lba_range_entries(buf, 512, block, n_block);
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@ -3235,9 +3283,16 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
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return 0;
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invalid_fld:
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ata_scsi_set_sense(dev, scmd, ILLEGAL_REQUEST, 0x24, 0x00);
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/* "Invalid field in cdb" */
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invalid_fld:
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ata_scsi_set_invalid_field(dev, scmd, fp);
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return 1;
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invalid_param_len:
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/* "Parameter list length error" */
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ata_scsi_set_sense(dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0);
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return 1;
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invalid_opcode:
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/* "Invalid command operation code" */
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ata_scsi_set_sense(dev, scmd, ILLEGAL_REQUEST, 0x20, 0x0);
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return 1;
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}
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@ -3351,27 +3406,34 @@ static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
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u8 pg, spg;
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unsigned six_byte, pg_len, hdr_len, bd_len;
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int len;
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u16 fp;
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VPRINTK("ENTER\n");
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six_byte = (cdb[0] == MODE_SELECT);
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if (six_byte) {
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if (scmd->cmd_len < 5)
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if (scmd->cmd_len < 5) {
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fp = 4;
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goto invalid_fld;
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}
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len = cdb[4];
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hdr_len = 4;
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} else {
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if (scmd->cmd_len < 9)
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if (scmd->cmd_len < 9) {
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fp = 8;
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goto invalid_fld;
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}
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len = (cdb[7] << 8) + cdb[8];
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hdr_len = 8;
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}
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/* We only support PF=1, SP=0. */
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if ((cdb[1] & 0x11) != 0x10)
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if ((cdb[1] & 0x11) != 0x10) {
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fp = 1;
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goto invalid_fld;
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}
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/* Test early for possible overrun. */
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if (!scsi_sg_count(scmd) || scsi_sglist(scmd)->length < len)
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@ -3452,8 +3514,7 @@ static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
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return 0;
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invalid_fld:
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/* "Invalid field in CDB" */
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ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x24, 0x0);
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ata_scsi_set_invalid_field(qc->dev, scmd, fp);
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return 1;
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invalid_param:
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@ -3667,12 +3728,12 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
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switch(scsicmd[0]) {
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/* TODO: worth improving? */
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case FORMAT_UNIT:
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ata_scsi_invalid_field(dev, cmd);
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ata_scsi_invalid_field(dev, cmd, 0);
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break;
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case INQUIRY:
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if (scsicmd[1] & 2) /* is CmdDt set? */
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ata_scsi_invalid_field(dev, cmd);
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if (scsicmd[1] & 2) /* is CmdDt set? */
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ata_scsi_invalid_field(dev, cmd, 1);
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else if ((scsicmd[1] & 1) == 0) /* is EVPD clear? */
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ata_scsi_rbuf_fill(&args, ata_scsiop_inq_std);
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else switch (scsicmd[2]) {
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@ -3698,7 +3759,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
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ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b2);
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break;
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default:
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ata_scsi_invalid_field(dev, cmd);
|
||||
ata_scsi_invalid_field(dev, cmd, 2);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
@ -3716,7 +3777,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
|
|||
if ((scsicmd[1] & 0x1f) == SAI_READ_CAPACITY_16)
|
||||
ata_scsi_rbuf_fill(&args, ata_scsiop_read_cap);
|
||||
else
|
||||
ata_scsi_invalid_field(dev, cmd);
|
||||
ata_scsi_invalid_field(dev, cmd, 1);
|
||||
break;
|
||||
|
||||
case REPORT_LUNS:
|
||||
|
@ -3748,7 +3809,7 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
|
|||
if ((tmp8 == 0x4) && (!scsicmd[3]) && (!scsicmd[4]))
|
||||
ata_scsi_rbuf_fill(&args, ata_scsiop_noop);
|
||||
else
|
||||
ata_scsi_invalid_field(dev, cmd);
|
||||
ata_scsi_invalid_field(dev, cmd, 1);
|
||||
break;
|
||||
|
||||
/* all other commands */
|
||||
|
|
Loading…
Reference in New Issue