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freebsd-dev/sbin/camcontrol/attrib.c
Alexander Motin 268c280675 Unify cam_send_ccb() error reporting. 
Error there mean that command was not even executed, and all information
we have about it is errno, and cam_error_print() call is not very useful.
Plus it is most likely a programmatic error, that shoud not happen.

MFC after:	1 week
Sponsored by:	iXsystems, Inc.
2019-09-07 16:52:40 +00:00

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/*-
* Copyright (c) 2014 Spectra Logic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* Authors: Ken Merry (Spectra Logic Corporation)
*/
/*
* SCSI Read and Write Attribute support for camcontrol(8).
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/ioctl.h>
#include <sys/stdint.h>
#include <sys/types.h>
#include <sys/endian.h>
#include <sys/sbuf.h>
#include <sys/queue.h>
#include <sys/chio.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <unistd.h>
#include <string.h>
#include <strings.h>
#include <fcntl.h>
#include <ctype.h>
#include <limits.h>
#include <err.h>
#include <locale.h>
#include <cam/cam.h>
#include <cam/cam_debug.h>
#include <cam/cam_ccb.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_pass.h>
#include <cam/scsi/scsi_ch.h>
#include <cam/scsi/scsi_message.h>
#include <camlib.h>
#include "camcontrol.h"
#if 0
struct scsi_attr_desc {
int attr_id;
STAILQ_ENTRY(scsi_attr_desc) links;
};
#endif
static struct scsi_nv elem_type_map[] = {
{ "all", ELEMENT_TYPE_ALL },
{ "picker", ELEMENT_TYPE_MT },
{ "slot", ELEMENT_TYPE_ST },
{ "portal", ELEMENT_TYPE_IE },
{ "drive", ELEMENT_TYPE_DT },
};
static struct scsi_nv sa_map[] = {
{ "attr_values", SRA_SA_ATTR_VALUES },
{ "attr_list", SRA_SA_ATTR_LIST },
{ "lv_list", SRA_SA_LOG_VOL_LIST },
{ "part_list", SRA_SA_PART_LIST },
{ "supp_attr", SRA_SA_SUPPORTED_ATTRS }
};
static struct scsi_nv output_format_map[] = {
{ "text_esc", SCSI_ATTR_OUTPUT_TEXT_ESC },
{ "text_raw", SCSI_ATTR_OUTPUT_TEXT_RAW },
{ "nonascii_esc", SCSI_ATTR_OUTPUT_NONASCII_ESC },
{ "nonascii_trim", SCSI_ATTR_OUTPUT_NONASCII_TRIM },
{ "nonascii_raw", SCSI_ATTR_OUTPUT_NONASCII_RAW },
{ "field_all", SCSI_ATTR_OUTPUT_FIELD_ALL },
{ "field_none", SCSI_ATTR_OUTPUT_FIELD_NONE },
{ "field_desc", SCSI_ATTR_OUTPUT_FIELD_DESC },
{ "field_num", SCSI_ATTR_OUTPUT_FIELD_NUM },
{ "field_size", SCSI_ATTR_OUTPUT_FIELD_SIZE },
{ "field_rw", SCSI_ATTR_OUTPUT_FIELD_RW },
};
int
scsiattrib(struct cam_device *device, int argc, char **argv, char *combinedopt,
int task_attr, int retry_count, int timeout, int verbosemode,
int err_recover)
{
union ccb *ccb = NULL;
int attr_num = -1;
#if 0
int num_attrs = 0;
#endif
int start_attr = 0;
int cached_attr = 0;
int read_service_action = -1;
int read_attr = 0, write_attr = 0;
int element_address = 0;
int element_type = ELEMENT_TYPE_ALL;
int partition = 0;
int logical_volume = 0;
char *endptr;
uint8_t *data_buf = NULL;
uint32_t dxfer_len = UINT16_MAX - 1;
uint32_t valid_len;
uint32_t output_format;
STAILQ_HEAD(, scsi_attr_desc) write_attr_list;
int error = 0;
int c;
ccb = cam_getccb(device);
if (ccb == NULL) {
warnx("%s: error allocating CCB", __func__);
error = 1;
goto bailout;
}
CCB_CLEAR_ALL_EXCEPT_HDR(&ccb->csio);
STAILQ_INIT(&write_attr_list);
/*
* By default, when displaying attribute values, we trim out
* non-ASCII characters in ASCII fields. We display all fields
* (description, attribute number, attribute size, and readonly
* status). We default to displaying raw text.
*
* XXX KDM need to port this to stable/10 and newer FreeBSD
* versions that have iconv built in and can convert codesets.
*/
output_format = SCSI_ATTR_OUTPUT_NONASCII_TRIM |
SCSI_ATTR_OUTPUT_FIELD_ALL |
SCSI_ATTR_OUTPUT_TEXT_RAW;
data_buf = malloc(dxfer_len);
if (data_buf == NULL) {
warn("%s: error allocating %u bytes", __func__, dxfer_len);
error = 1;
goto bailout;
}
while ((c = getopt(argc, argv, combinedopt)) != -1) {
switch (c) {
case 'a':
attr_num = strtol(optarg, &endptr, 0);
if (*endptr != '\0') {
warnx("%s: invalid attribute number %s",
__func__, optarg);
error = 1;
goto bailout;
}
start_attr = attr_num;
break;
case 'c':
cached_attr = 1;
break;
case 'e':
element_address = strtol(optarg, &endptr, 0);
if (*endptr != '\0') {
warnx("%s: invalid element address %s",
__func__, optarg);
error = 1;
goto bailout;
}
break;
case 'F': {
scsi_nv_status status;
scsi_attrib_output_flags new_outflags;
int entry_num = 0;
char *tmpstr;
if (isdigit(optarg[0])) {
output_format = strtoul(optarg, &endptr, 0);
if (*endptr != '\0') {
warnx("%s: invalid numeric output "
"format argument %s", __func__,
optarg);
error = 1;
goto bailout;
}
break;
}
new_outflags = SCSI_ATTR_OUTPUT_NONE;
while ((tmpstr = strsep(&optarg, ",")) != NULL) {
status = scsi_get_nv(output_format_map,
sizeof(output_format_map) /
sizeof(output_format_map[0]), tmpstr,
&entry_num, SCSI_NV_FLAG_IG_CASE);
if (status == SCSI_NV_FOUND)
new_outflags |=
output_format_map[entry_num].value;
else {
warnx("%s: %s format option %s",
__func__,
(status == SCSI_NV_AMBIGUOUS) ?
"ambiguous" : "invalid", tmpstr);
error = 1;
goto bailout;
}
}
output_format = new_outflags;
break;
}
case 'p':
partition = strtol(optarg, &endptr, 0);
if (*endptr != '\0') {
warnx("%s: invalid partition number %s",
__func__, optarg);
error = 1;
goto bailout;
}
break;
case 'r': {
scsi_nv_status status;
int entry_num = 0;
status = scsi_get_nv(sa_map, sizeof(sa_map) /
sizeof(sa_map[0]), optarg, &entry_num,
SCSI_NV_FLAG_IG_CASE);
if (status == SCSI_NV_FOUND)
read_service_action = sa_map[entry_num].value;
else {
warnx("%s: %s %s option %s", __func__,
(status == SCSI_NV_AMBIGUOUS) ?
"ambiguous" : "invalid", "service action",
optarg);
error = 1;
goto bailout;
}
read_attr = 1;
break;
}
case 's':
start_attr = strtol(optarg, &endptr, 0);
if (*endptr != '\0') {
warnx("%s: invalid starting attr argument %s",
__func__, optarg);
error = 1;
goto bailout;
}
break;
case 'T': {
scsi_nv_status status;
int entry_num = 0;
status = scsi_get_nv(elem_type_map,
sizeof(elem_type_map) / sizeof(elem_type_map[0]),
optarg, &entry_num, SCSI_NV_FLAG_IG_CASE);
if (status == SCSI_NV_FOUND)
element_type = elem_type_map[entry_num].value;
else {
warnx("%s: %s %s option %s", __func__,
(status == SCSI_NV_AMBIGUOUS) ?
"ambiguous" : "invalid", "element type",
optarg);
error = 1;
goto bailout;
}
break;
}
case 'w':
warnx("%s: writing attributes is not implemented yet",
__func__);
error = 1;
goto bailout;
break;
case 'V':
logical_volume = strtol(optarg, &endptr, 0);
if (*endptr != '\0') {
warnx("%s: invalid logical volume argument %s",
__func__, optarg);
error = 1;
goto bailout;
}
break;
default:
break;
}
}
/*
* Default to reading attributes
*/
if (((read_attr == 0) && (write_attr == 0))
|| ((read_attr != 0) && (write_attr != 0))) {
warnx("%s: Must specify either -r or -w", __func__);
error = 1;
goto bailout;
}
if (read_attr != 0) {
scsi_read_attribute(&ccb->csio,
/*retries*/ retry_count,
/*cbfcnp*/ NULL,
/*tag_action*/ task_attr,
/*service_action*/ read_service_action,
/*element*/ element_address,
/*elem_type*/ element_type,
/*logical_volume*/ logical_volume,
/*partition*/ partition,
/*first_attribute*/ start_attr,
/*cache*/ cached_attr,
/*data_ptr*/ data_buf,
/*length*/ dxfer_len,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ timeout ? timeout : 60000);
#if 0
} else {
#endif
}
ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
if (err_recover != 0)
ccb->ccb_h.flags |= CAM_PASS_ERR_RECOVER;
if (cam_send_ccb(device, ccb) < 0) {
warn("error sending %s ATTRIBUTE", (read_attr != 0) ?
"READ" : "WRITE");
error = 1;
goto bailout;
}
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if (verbosemode != 0) {
cam_error_print(device, ccb, CAM_ESF_ALL,
CAM_EPF_ALL, stderr);
}
error = 1;
goto bailout;
}
if (read_attr == 0)
goto bailout;
valid_len = dxfer_len - ccb->csio.resid;
switch (read_service_action) {
case SRA_SA_ATTR_VALUES: {
uint32_t len_left, hdr_len, cur_len;
struct scsi_read_attribute_values *hdr;
struct scsi_mam_attribute_header *cur_id;
char error_str[512];
uint8_t *cur_pos;
struct sbuf *sb;
hdr = (struct scsi_read_attribute_values *)data_buf;
if (valid_len < sizeof(*hdr)) {
fprintf(stdout, "No attributes returned.\n");
error = 0;
goto bailout;
}
sb = sbuf_new_auto();
if (sb == NULL) {
warn("%s: Unable to allocate sbuf", __func__);
error = 1;
goto bailout;
}
/*
* XXX KDM grab more data if it is available.
*/
hdr_len = scsi_4btoul(hdr->length);
for (len_left = MIN(valid_len, hdr_len),
cur_pos = &hdr->attribute_0[0]; len_left > sizeof(*cur_id);
len_left -= cur_len, cur_pos += cur_len) {
int cur_attr_num;
cur_id = (struct scsi_mam_attribute_header *)cur_pos;
cur_len = scsi_2btoul(cur_id->length) + sizeof(*cur_id);
cur_attr_num = scsi_2btoul(cur_id->id);
if ((attr_num != -1)
&& (cur_attr_num != attr_num))
continue;
error = scsi_attrib_sbuf(sb, cur_id, len_left,
/*user_table*/ NULL, /*num_user_entries*/ 0,
/*prefer_user_table*/ 0, output_format, error_str,
sizeof(error_str));
if (error != 0) {
warnx("%s: %s", __func__, error_str);
sbuf_delete(sb);
error = 1;
goto bailout;
}
if (attr_num != -1)
break;
}
sbuf_finish(sb);
fprintf(stdout, "%s", sbuf_data(sb));
sbuf_delete(sb);
break;
}
case SRA_SA_SUPPORTED_ATTRS:
case SRA_SA_ATTR_LIST: {
uint32_t len_left, hdr_len;
struct scsi_attrib_list_header *hdr;
struct scsi_attrib_table_entry *entry = NULL;
const char *sa_name = "Supported Attributes";
const char *at_name = "Available Attributes";
int attr_id;
uint8_t *cur_id;
hdr = (struct scsi_attrib_list_header *)data_buf;
if (valid_len < sizeof(*hdr)) {
fprintf(stdout, "No %s\n",
(read_service_action == SRA_SA_SUPPORTED_ATTRS)?
sa_name : at_name);
error = 0;
goto bailout;
}
fprintf(stdout, "%s:\n",
(read_service_action == SRA_SA_SUPPORTED_ATTRS) ?
sa_name : at_name);
hdr_len = scsi_4btoul(hdr->length);
for (len_left = MIN(valid_len, hdr_len),
cur_id = &hdr->first_attr_0[0]; len_left > 1;
len_left -= sizeof(uint16_t), cur_id += sizeof(uint16_t)) {
attr_id = scsi_2btoul(cur_id);
if ((attr_num != -1)
&& (attr_id != attr_num))
continue;
entry = scsi_get_attrib_entry(attr_id);
fprintf(stdout, "0x%.4x", attr_id);
if (entry == NULL)
fprintf(stdout, "\n");
else
fprintf(stdout, ": %s\n", entry->desc);
if (attr_num != -1)
break;
}
break;
}
case SRA_SA_PART_LIST:
case SRA_SA_LOG_VOL_LIST: {
struct scsi_attrib_lv_list *lv_list;
const char *partition_name = "Partition";
const char *lv_name = "Logical Volume";
if (valid_len < sizeof(*lv_list)) {
fprintf(stdout, "No %s list returned\n",
(read_service_action == SRA_SA_PART_LIST) ?
partition_name : lv_name);
error = 0;
goto bailout;
}
lv_list = (struct scsi_attrib_lv_list *)data_buf;
fprintf(stdout, "First %s: %d\n",
(read_service_action == SRA_SA_PART_LIST) ?
partition_name : lv_name,
lv_list->first_lv_number);
fprintf(stdout, "Number of %ss: %d\n",
(read_service_action == SRA_SA_PART_LIST) ?
partition_name : lv_name,
lv_list->num_logical_volumes);
break;
}
default:
break;
}
bailout:
if (ccb != NULL)
cam_freeccb(ccb);
free(data_buf);
return (error);
}
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