diff options
Diffstat (limited to 'sys/dev/softraid.c')
| -rw-r--r-- | sys/dev/softraid.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/sys/dev/softraid.c b/sys/dev/softraid.c index ae42039372c..58f6ca8d485 100644 --- a/sys/dev/softraid.c +++ b/sys/dev/softraid.c @@ -1,4 +1,4 @@ -/* $OpenBSD: softraid.c,v 1.98 2008/02/03 00:25:21 marco Exp $ */ +/* $OpenBSD: softraid.c,v 1.99 2008/02/05 16:15:35 marco Exp $ */ /* * Copyright (c) 2007 Marco Peereboom <marco@peereboom.us> * @@ -2171,6 +2171,63 @@ sr_shutdown(void *arg) sr_shutdown_discipline(sd); } +int +sr_validate_io(struct sr_workunit *wu, daddr64_t *blk, char *func) +{ + struct sr_discipline *sd = wu->swu_dis; + struct scsi_xfer *xs = wu->swu_xs; + int rv = 1; + + DNPRINTF(SR_D_DIS, "%s: %s 0x%02x\n", DEVNAME(sd->sd_sc), func, + xs->cmd->opcode); + + if (sd->sd_vol.sv_meta.svm_status == BIOC_SVOFFLINE) { + DNPRINTF(SR_D_DIS, "%s: %s device offline\n", + DEVNAME(sd->sd_sc)); + goto bad; + } + + if (xs->datalen == 0) { + printf("%s: %s: illegal block count\n", + DEVNAME(sd->sd_sc), func, sd->sd_vol.sv_meta.svm_devname); + goto bad; + } + + if (xs->cmdlen == 10) + *blk = _4btol(((struct scsi_rw_big *)xs->cmd)->addr); + else if (xs->cmdlen == 16) + *blk = _8btol(((struct scsi_rw_16 *)xs->cmd)->addr); + else if (xs->cmdlen == 6) + *blk = _3btol(((struct scsi_rw *)xs->cmd)->addr); + else { + printf("%s: %s: illegal cmdlen\n", DEVNAME(sd->sd_sc), func, + sd->sd_vol.sv_meta.svm_devname); + goto bad; + } + + wu->swu_blk_start = *blk; + wu->swu_blk_end = *blk + (xs->datalen >> DEV_BSHIFT) - 1; + + if (wu->swu_blk_end > sd->sd_vol.sv_meta.svm_size) { + DNPRINTF(SR_D_DIS, "%s: %s out of bounds start: %lld " + "end: %lld length: %d\n", + DEVNAME(sd->sd_sc), func, wu->swu_blk_start, + wu->swu_blk_end, xs->datalen); + + sd->sd_scsi_sense.error_code = SSD_ERRCODE_CURRENT | + SSD_ERRCODE_VALID; + sd->sd_scsi_sense.flags = SKEY_ILLEGAL_REQUEST; + sd->sd_scsi_sense.add_sense_code = 0x21; + sd->sd_scsi_sense.add_sense_code_qual = 0x00; + sd->sd_scsi_sense.extra_len = 4; + goto bad; + } + + rv = 0; +bad: + return (rv); +} + #ifndef SMALL_KERNEL int sr_create_sensors(struct sr_discipline *sd) |