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/* Copyright 2014 Baruch Even
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "scsicmd.h"
#include "scsicmd_utils.h"
#include "main.h"
#include "sense_dump.h"
#include <stdio.h>
#include <memory.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <scsi/sg.h>
#include <inttypes.h>
static void dump_page(int fd, uint8_t page, uint8_t subpage)
{
unsigned char cdb[32];
unsigned char buf[16*1024];
unsigned cdb_len = cdb_log_sense(cdb, page, subpage, sizeof(buf));
printf("List page %02X subpage %02X\n", page, subpage);
bool ret = submit_cmd(fd, cdb, cdb_len, buf, sizeof(buf), SG_DXFER_FROM_DEV);
if (!ret) {
fprintf(stderr, "Failed to submit command\n");
return;
}
unsigned char *sense = NULL;
unsigned sense_len = 0;
unsigned buf_len = 0;
ret = read_response_buf(fd, &sense, &sense_len, &buf_len);
if (sense) {
printf("error while reading response buffer, nothing to show\n");
return;
}
printf("Read %u bytes\n", buf_len);
response_dump(buf, buf_len);
printf("\n");
}
void do_command(int fd)
{
unsigned char cdb[32];
unsigned char buf[16*1024];
unsigned cdb_len = cdb_log_sense(cdb, 0, 0, sizeof(buf));
printf("List all supported pages\n");
bool ret = submit_cmd(fd, cdb, cdb_len, buf, sizeof(buf), SG_DXFER_FROM_DEV);
if (!ret) {
fprintf(stderr, "Failed to submit command\n");
return;
}
unsigned char *sense = NULL;
unsigned sense_len = 0;
unsigned buf_len = 0;
ret = read_response_buf(fd, &sense, &sense_len, &buf_len);
if (sense) {
printf("error while reading response buffer, nothing to show\n");
return;
}
printf("Read %u bytes\n", buf_len);
response_dump(buf, buf_len);
if (buf_len < 4) {
printf("log sense list must have at least 4 bytes\n");
return;
}
if (buf[0] != 0 || buf[1] != 0) {
printf("expected to receive log page 0 subpage 0\n");
return;
}
uint16_t num_pages = get_uint16(buf, 2);
uint16_t i;
for (i = 0; i < num_pages; i++) {
dump_page(fd, buf[4 + i], 0);
}
printf("List all pages and subpages\n");
cdb_len = cdb_log_sense(cdb, 0, 0xff, sizeof(buf));
ret = submit_cmd(fd, cdb, cdb_len, buf, sizeof(buf), SG_DXFER_FROM_DEV);
if (!ret) {
fprintf(stderr, "Failed to submit command\n");
return;
}
sense = NULL;
sense_len = 0;
buf_len = 0;
ret = read_response_buf(fd, &sense, &sense_len, &buf_len);
if (sense) {
printf("error while reading response buffer, nothing to show\n");
return;
}
printf("Read %u bytes\n", buf_len);
response_dump(buf, buf_len);
if (buf_len < 4) {
printf("log sense list must have at least 4 bytes\n");
return;
}
if (buf[0] != 0x40 || buf[1] != 0xFF) {
printf("expected to receive log page 0 (spf=1) subpage 0xFF\n");
return;
}
num_pages = get_uint16(buf, 2);
for (i = 0; i < num_pages; i++) {
uint8_t page = buf[4 + i*2] & 0x3F;
uint8_t subpage = buf[4 + i*2 + 1];
if (subpage == 0) {
printf("Skipping page %02X subpage %02X since subpage is 00 it was already retrieved above\n", page, subpage);
continue;
}
dump_page(fd, page, subpage);
}
}
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