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[scsi] Improve sense code parsing

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Parse the sense data to extract the reponse code, the sense key, the
additional sense code, and the additional sense code qualifier.

Originally-implemented-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2014-06-02 02:17:28 +01:00
parent d630052e6f
commit e047811c85
5 changed files with 93 additions and 19 deletions
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11
src/net/tcp/iscsi.c
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@@ -412,11 +412,12 @@ static int iscsi_rx_scsi_response ( struct iscsi_session *iscsi,
= &iscsi->rx_bhs.scsi_response;
struct scsi_rsp rsp;
uint32_t residual_count;
size_t data_len;
int rc;
/* Buffer up the PDU data */
if ( ( rc = iscsi_rx_buffered_data ( iscsi, data, len ) ) != 0 ) {
DBGC ( iscsi, "iSCSI %p could not buffer login response: %s\n",
DBGC ( iscsi, "iSCSI %p could not buffer SCSI response: %s\n",
iscsi, strerror ( rc ) );
return rc;
}
@@ -432,9 +433,11 @@ static int iscsi_rx_scsi_response ( struct iscsi_session *iscsi,
} else if ( response->flags & ISCSI_DATA_FLAG_UNDERFLOW ) {
rsp.overrun = -(residual_count);
}
if ( ISCSI_DATA_LEN ( response->lengths ) )
memcpy ( &rsp.sense, ( iscsi->rx_buffer + 2 ),
sizeof ( rsp.sense ) );
data_len = ISCSI_DATA_LEN ( response->lengths );
if ( data_len ) {
scsi_parse_sense ( ( iscsi->rx_buffer + 2 ), ( data_len - 2 ),
&rsp.sense );
}
iscsi_rx_buffered_data_done ( iscsi );
/* Check for errors */