bec9534d1d
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
591 lines
16 KiB
C
591 lines
16 KiB
C
/*-
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* Generic utility routines for the Common Access Method layer.
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*
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1997 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#ifdef _KERNEL
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#else /* _KERNEL */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <camlib.h>
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#endif /* _KERNEL */
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/smp_all.h>
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#include <sys/sbuf.h>
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#ifdef _KERNEL
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#include <sys/libkern.h>
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#include <cam/cam_queue.h>
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#include <cam/cam_xpt.h>
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FEATURE(scbus, "SCSI devices support");
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#endif
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static int camstatusentrycomp(const void *key, const void *member);
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const struct cam_status_entry cam_status_table[] = {
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{ CAM_REQ_INPROG, "CCB request is in progress" },
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{ CAM_REQ_CMP, "CCB request completed without error" },
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{ CAM_REQ_ABORTED, "CCB request aborted by the host" },
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{ CAM_UA_ABORT, "Unable to abort CCB request" },
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{ CAM_REQ_CMP_ERR, "CCB request completed with an error" },
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{ CAM_BUSY, "CAM subsystem is busy" },
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{ CAM_REQ_INVALID, "CCB request was invalid" },
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{ CAM_PATH_INVALID, "Supplied Path ID is invalid" },
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{ CAM_DEV_NOT_THERE, "Device Not Present" },
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{ CAM_UA_TERMIO, "Unable to terminate I/O CCB request" },
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{ CAM_SEL_TIMEOUT, "Selection Timeout" },
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{ CAM_CMD_TIMEOUT, "Command timeout" },
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{ CAM_SCSI_STATUS_ERROR, "SCSI Status Error" },
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{ CAM_MSG_REJECT_REC, "Message Reject Reveived" },
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{ CAM_SCSI_BUS_RESET, "SCSI Bus Reset Sent/Received" },
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{ CAM_UNCOR_PARITY, "Uncorrectable parity/CRC error" },
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{ CAM_AUTOSENSE_FAIL, "Auto-Sense Retrieval Failed" },
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{ CAM_NO_HBA, "No HBA Detected" },
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{ CAM_DATA_RUN_ERR, "Data Overrun error" },
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{ CAM_UNEXP_BUSFREE, "Unexpected Bus Free" },
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{ CAM_SEQUENCE_FAIL, "Target Bus Phase Sequence Failure" },
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{ CAM_CCB_LEN_ERR, "CCB length supplied is inadequate" },
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{ CAM_PROVIDE_FAIL, "Unable to provide requested capability" },
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{ CAM_BDR_SENT, "SCSI BDR Message Sent" },
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{ CAM_REQ_TERMIO, "CCB request terminated by the host" },
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{ CAM_UNREC_HBA_ERROR, "Unrecoverable Host Bus Adapter Error" },
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{ CAM_REQ_TOO_BIG, "The request was too large for this host" },
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{ CAM_REQUEUE_REQ, "Unconditionally Re-queue Request", },
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{ CAM_ATA_STATUS_ERROR, "ATA Status Error" },
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{ CAM_SCSI_IT_NEXUS_LOST,"Initiator/Target Nexus Lost" },
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{ CAM_SMP_STATUS_ERROR, "SMP Status Error" },
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{ CAM_IDE, "Initiator Detected Error Message Received" },
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{ CAM_RESRC_UNAVAIL, "Resource Unavailable" },
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{ CAM_UNACKED_EVENT, "Unacknowledged Event by Host" },
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{ CAM_MESSAGE_RECV, "Message Received in Host Target Mode" },
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{ CAM_INVALID_CDB, "Invalid CDB received in Host Target Mode" },
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{ CAM_LUN_INVALID, "Invalid Lun" },
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{ CAM_TID_INVALID, "Invalid Target ID" },
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{ CAM_FUNC_NOTAVAIL, "Function Not Available" },
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{ CAM_NO_NEXUS, "Nexus Not Established" },
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{ CAM_IID_INVALID, "Invalid Initiator ID" },
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{ CAM_CDB_RECVD, "CDB Received" },
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{ CAM_LUN_ALRDY_ENA, "LUN Already Enabled for Target Mode" },
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{ CAM_SCSI_BUSY, "SCSI Bus Busy" },
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};
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#ifdef _KERNEL
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SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem");
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#ifndef CAM_DEFAULT_SORT_IO_QUEUES
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#define CAM_DEFAULT_SORT_IO_QUEUES 1
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#endif
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int cam_sort_io_queues = CAM_DEFAULT_SORT_IO_QUEUES;
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SYSCTL_INT(_kern_cam, OID_AUTO, sort_io_queues, CTLFLAG_RWTUN,
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&cam_sort_io_queues, 0, "Sort IO queues to try and optimise disk access patterns");
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#endif
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void
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cam_strvis(u_int8_t *dst, const u_int8_t *src, int srclen, int dstlen)
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{
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/* Trim leading/trailing spaces, nulls. */
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while (srclen > 0 && src[0] == ' ')
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src++, srclen--;
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while (srclen > 0
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&& (src[srclen-1] == ' ' || src[srclen-1] == '\0'))
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srclen--;
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while (srclen > 0 && dstlen > 1) {
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u_int8_t *cur_pos = dst;
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if (*src < 0x20 || *src >= 0x80) {
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/* SCSI-II Specifies that these should never occur. */
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/* non-printable character */
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if (dstlen > 4) {
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*cur_pos++ = '\\';
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*cur_pos++ = ((*src & 0300) >> 6) + '0';
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*cur_pos++ = ((*src & 0070) >> 3) + '0';
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*cur_pos++ = ((*src & 0007) >> 0) + '0';
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} else {
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*cur_pos++ = '?';
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}
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} else {
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/* normal character */
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*cur_pos++ = *src;
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}
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src++;
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srclen--;
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dstlen -= cur_pos - dst;
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dst = cur_pos;
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}
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*dst = '\0';
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}
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void
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cam_strvis_sbuf(struct sbuf *sb, const u_int8_t *src, int srclen,
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uint32_t flags)
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{
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/* Trim leading/trailing spaces, nulls. */
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while (srclen > 0 && src[0] == ' ')
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src++, srclen--;
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while (srclen > 0
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&& (src[srclen-1] == ' ' || src[srclen-1] == '\0'))
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srclen--;
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while (srclen > 0) {
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if (*src < 0x20 || *src >= 0x80) {
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/* SCSI-II Specifies that these should never occur. */
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/* non-printable character */
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switch (flags & CAM_STRVIS_FLAG_NONASCII_MASK) {
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case CAM_STRVIS_FLAG_NONASCII_ESC:
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sbuf_printf(sb, "\\%c%c%c",
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((*src & 0300) >> 6) + '0',
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((*src & 0070) >> 3) + '0',
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((*src & 0007) >> 0) + '0');
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break;
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case CAM_STRVIS_FLAG_NONASCII_RAW:
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/*
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* If we run into a NUL, just transform it
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* into a space.
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*/
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if (*src != 0x00)
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sbuf_putc(sb, *src);
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else
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sbuf_putc(sb, ' ');
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break;
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case CAM_STRVIS_FLAG_NONASCII_SPC:
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sbuf_putc(sb, ' ');
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break;
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case CAM_STRVIS_FLAG_NONASCII_TRIM:
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default:
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break;
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}
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} else {
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/* normal character */
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sbuf_putc(sb, *src);
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}
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src++;
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srclen--;
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}
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}
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/*
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* Compare string with pattern, returning 0 on match.
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* Short pattern matches trailing blanks in name,
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* Shell globbing rules apply: * matches 0 or more characters,
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* ? matchces one character, [...] denotes a set to match one char,
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* [^...] denotes a complimented set to match one character.
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* Spaces in str used to match anything in the pattern string
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* but was removed because it's a bug. No current patterns require
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* it, as far as I know, but it's impossible to know what drives
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* returned.
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*
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* Each '*' generates recursion, so keep the number of * in check.
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*/
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int
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cam_strmatch(const u_int8_t *str, const u_int8_t *pattern, int str_len)
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{
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while (*pattern != '\0' && str_len > 0) {
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if (*pattern == '*') {
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pattern++;
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if (*pattern == '\0')
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return (0);
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do {
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if (cam_strmatch(str, pattern, str_len) == 0)
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return (0);
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str++;
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str_len--;
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} while (str_len > 0);
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return (1);
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} else if (*pattern == '[') {
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int negate_range, ok;
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uint8_t pc = UCHAR_MAX;
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uint8_t sc;
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ok = 0;
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sc = *str++;
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str_len--;
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pattern++;
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if ((negate_range = (*pattern == '^')) != 0)
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pattern++;
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while ((*pattern != ']') && *pattern != '\0') {
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if (*pattern == '-') {
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if (pattern[1] == '\0') /* Bad pattern */
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return (1);
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if (sc >= pc && sc <= pattern[1])
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ok = 1;
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pattern++;
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} else if (*pattern == sc)
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ok = 1;
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pc = *pattern;
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pattern++;
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}
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if (ok == negate_range)
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return (1);
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pattern++;
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} else if (*pattern == '?') {
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/*
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* NB: || *str == ' ' of the old code is a bug and was
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* removed. If you add it back, keep this the last if
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* before the naked else */
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pattern++;
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str++;
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str_len--;
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} else {
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if (*str != *pattern)
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return (1);
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pattern++;
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str++;
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str_len--;
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}
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}
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/* '*' is allowed to match nothing, so gobble it */
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while (*pattern == '*')
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pattern++;
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if ( *pattern != '\0') {
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/* Pattern not fully consumed. Not a match */
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return (1);
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}
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/* Eat trailing spaces, which get added by SAT */
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while (str_len > 0 && *str == ' ') {
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str++;
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str_len--;
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}
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return (str_len);
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}
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caddr_t
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cam_quirkmatch(caddr_t target, caddr_t quirk_table, int num_entries,
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int entry_size, cam_quirkmatch_t *comp_func)
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{
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for (; num_entries > 0; num_entries--, quirk_table += entry_size) {
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if ((*comp_func)(target, quirk_table) == 0)
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return (quirk_table);
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}
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return (NULL);
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}
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const struct cam_status_entry*
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cam_fetch_status_entry(cam_status status)
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{
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status &= CAM_STATUS_MASK;
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return (bsearch(&status, &cam_status_table,
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nitems(cam_status_table),
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sizeof(*cam_status_table),
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camstatusentrycomp));
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}
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static int
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camstatusentrycomp(const void *key, const void *member)
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{
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cam_status status;
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const struct cam_status_entry *table_entry;
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status = *(const cam_status *)key;
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table_entry = (const struct cam_status_entry *)member;
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return (status - table_entry->status_code);
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}
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#ifdef _KERNEL
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char *
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cam_error_string(union ccb *ccb, char *str, int str_len,
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cam_error_string_flags flags,
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cam_error_proto_flags proto_flags)
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#else /* !_KERNEL */
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char *
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cam_error_string(struct cam_device *device, union ccb *ccb, char *str,
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int str_len, cam_error_string_flags flags,
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cam_error_proto_flags proto_flags)
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#endif /* _KERNEL/!_KERNEL */
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{
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char path_str[64];
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struct sbuf sb;
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if ((ccb == NULL)
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|| (str == NULL)
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|| (str_len <= 0))
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return(NULL);
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if (flags == CAM_ESF_NONE)
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return(NULL);
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switch (ccb->ccb_h.func_code) {
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case XPT_ATA_IO:
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switch (proto_flags & CAM_EPF_LEVEL_MASK) {
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case CAM_EPF_NONE:
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break;
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case CAM_EPF_ALL:
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case CAM_EPF_NORMAL:
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proto_flags |= CAM_EAF_PRINT_RESULT;
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/* FALLTHROUGH */
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case CAM_EPF_MINIMAL:
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proto_flags |= CAM_EAF_PRINT_STATUS;
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/* FALLTHROUGH */
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default:
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break;
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}
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break;
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case XPT_SCSI_IO:
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switch (proto_flags & CAM_EPF_LEVEL_MASK) {
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case CAM_EPF_NONE:
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break;
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case CAM_EPF_ALL:
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case CAM_EPF_NORMAL:
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proto_flags |= CAM_ESF_PRINT_SENSE;
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/* FALLTHROUGH */
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case CAM_EPF_MINIMAL:
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proto_flags |= CAM_ESF_PRINT_STATUS;
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/* FALLTHROUGH */
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default:
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break;
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}
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break;
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case XPT_SMP_IO:
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switch (proto_flags & CAM_EPF_LEVEL_MASK) {
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case CAM_EPF_NONE:
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break;
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case CAM_EPF_ALL:
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proto_flags |= CAM_ESMF_PRINT_FULL_CMD;
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/* FALLTHROUGH */
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case CAM_EPF_NORMAL:
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case CAM_EPF_MINIMAL:
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proto_flags |= CAM_ESMF_PRINT_STATUS;
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/* FALLTHROUGH */
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default:
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break;
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}
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break;
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default:
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break;
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}
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#ifdef _KERNEL
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xpt_path_string(ccb->csio.ccb_h.path, path_str, sizeof(path_str));
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#else /* !_KERNEL */
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cam_path_string(device, path_str, sizeof(path_str));
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#endif /* _KERNEL/!_KERNEL */
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sbuf_new(&sb, str, str_len, 0);
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if (flags & CAM_ESF_COMMAND) {
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sbuf_cat(&sb, path_str);
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switch (ccb->ccb_h.func_code) {
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case XPT_ATA_IO:
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ata_command_sbuf(&ccb->ataio, &sb);
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sbuf_printf(&sb, "\n");
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break;
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case XPT_SCSI_IO:
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#ifdef _KERNEL
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scsi_command_string(&ccb->csio, &sb);
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#else /* !_KERNEL */
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scsi_command_string(device, &ccb->csio, &sb);
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#endif /* _KERNEL/!_KERNEL */
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sbuf_printf(&sb, "\n");
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break;
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case XPT_SMP_IO:
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smp_command_sbuf(&ccb->smpio, &sb, path_str, 79 -
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strlen(path_str), (proto_flags &
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CAM_ESMF_PRINT_FULL_CMD) ? 79 : 0);
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sbuf_printf(&sb, "\n");
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break;
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default:
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break;
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}
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}
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if (flags & CAM_ESF_CAM_STATUS) {
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cam_status status;
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const struct cam_status_entry *entry;
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sbuf_cat(&sb, path_str);
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status = ccb->ccb_h.status & CAM_STATUS_MASK;
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entry = cam_fetch_status_entry(status);
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if (entry == NULL)
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sbuf_printf(&sb, "CAM status: Unknown (%#x)\n",
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ccb->ccb_h.status);
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else
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sbuf_printf(&sb, "CAM status: %s\n",
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entry->status_text);
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}
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if (flags & CAM_ESF_PROTO_STATUS) {
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switch (ccb->ccb_h.func_code) {
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case XPT_ATA_IO:
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if ((ccb->ccb_h.status & CAM_STATUS_MASK) !=
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CAM_ATA_STATUS_ERROR)
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break;
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if (proto_flags & CAM_EAF_PRINT_STATUS) {
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sbuf_cat(&sb, path_str);
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ata_status_sbuf(&ccb->ataio, &sb);
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sbuf_printf(&sb, "\n");
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}
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if (proto_flags & CAM_EAF_PRINT_RESULT) {
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sbuf_cat(&sb, path_str);
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sbuf_printf(&sb, "RES: ");
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ata_res_sbuf(&ccb->ataio.res, &sb);
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sbuf_printf(&sb, "\n");
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}
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break;
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case XPT_SCSI_IO:
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if ((ccb->ccb_h.status & CAM_STATUS_MASK) !=
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CAM_SCSI_STATUS_ERROR)
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break;
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if (proto_flags & CAM_ESF_PRINT_STATUS) {
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sbuf_cat(&sb, path_str);
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sbuf_printf(&sb, "SCSI status: %s\n",
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scsi_status_string(&ccb->csio));
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}
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if ((proto_flags & CAM_ESF_PRINT_SENSE)
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&& (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
|
|
&& (ccb->ccb_h.status & CAM_AUTOSNS_VALID)) {
|
|
|
|
#ifdef _KERNEL
|
|
scsi_sense_sbuf(&ccb->csio, &sb,
|
|
SSS_FLAG_NONE);
|
|
#else /* !_KERNEL */
|
|
scsi_sense_sbuf(device, &ccb->csio, &sb,
|
|
SSS_FLAG_NONE);
|
|
#endif /* _KERNEL/!_KERNEL */
|
|
}
|
|
break;
|
|
case XPT_SMP_IO:
|
|
if ((ccb->ccb_h.status & CAM_STATUS_MASK) !=
|
|
CAM_SMP_STATUS_ERROR)
|
|
break;
|
|
|
|
if (proto_flags & CAM_ESF_PRINT_STATUS) {
|
|
sbuf_cat(&sb, path_str);
|
|
sbuf_printf(&sb, "SMP status: %s (%#x)\n",
|
|
smp_error_desc(ccb->smpio.smp_response[2]),
|
|
ccb->smpio.smp_response[2]);
|
|
}
|
|
/* There is no SMP equivalent to SCSI sense. */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
sbuf_finish(&sb);
|
|
|
|
return(sbuf_data(&sb));
|
|
}
|
|
|
|
#ifdef _KERNEL
|
|
|
|
void
|
|
cam_error_print(union ccb *ccb, cam_error_string_flags flags,
|
|
cam_error_proto_flags proto_flags)
|
|
{
|
|
char str[512];
|
|
|
|
printf("%s", cam_error_string(ccb, str, sizeof(str), flags,
|
|
proto_flags));
|
|
}
|
|
|
|
#else /* !_KERNEL */
|
|
|
|
void
|
|
cam_error_print(struct cam_device *device, union ccb *ccb,
|
|
cam_error_string_flags flags, cam_error_proto_flags proto_flags,
|
|
FILE *ofile)
|
|
{
|
|
char str[512];
|
|
|
|
if ((device == NULL) || (ccb == NULL) || (ofile == NULL))
|
|
return;
|
|
|
|
fprintf(ofile, "%s", cam_error_string(device, ccb, str, sizeof(str),
|
|
flags, proto_flags));
|
|
}
|
|
|
|
#endif /* _KERNEL/!_KERNEL */
|
|
|
|
/*
|
|
* Common calculate geometry fuction
|
|
*
|
|
* Caller should set ccg->volume_size and block_size.
|
|
* The extended parameter should be zero if extended translation
|
|
* should not be used.
|
|
*/
|
|
void
|
|
cam_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
|
|
{
|
|
uint32_t size_mb, secs_per_cylinder;
|
|
|
|
if (ccg->block_size == 0) {
|
|
ccg->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
return;
|
|
}
|
|
size_mb = (1024L * 1024L) / ccg->block_size;
|
|
if (size_mb == 0) {
|
|
ccg->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
return;
|
|
}
|
|
size_mb = ccg->volume_size / size_mb;
|
|
if (size_mb > 1024 && extended) {
|
|
ccg->heads = 255;
|
|
ccg->secs_per_track = 63;
|
|
} else {
|
|
ccg->heads = 64;
|
|
ccg->secs_per_track = 32;
|
|
}
|
|
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
|
|
if (secs_per_cylinder == 0) {
|
|
ccg->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
return;
|
|
}
|
|
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
|
|
ccg->ccb_h.status = CAM_REQ_CMP;
|
|
}
|