434 строки
11 KiB
C
434 строки
11 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <inttypes.h>
|
|
#include "event-parse.h"
|
|
|
|
typedef unsigned long sector_t;
|
|
typedef uint64_t u64;
|
|
typedef unsigned int u32;
|
|
|
|
/*
|
|
* SCSI opcodes
|
|
*/
|
|
#define TEST_UNIT_READY 0x00
|
|
#define REZERO_UNIT 0x01
|
|
#define REQUEST_SENSE 0x03
|
|
#define FORMAT_UNIT 0x04
|
|
#define READ_BLOCK_LIMITS 0x05
|
|
#define REASSIGN_BLOCKS 0x07
|
|
#define INITIALIZE_ELEMENT_STATUS 0x07
|
|
#define READ_6 0x08
|
|
#define WRITE_6 0x0a
|
|
#define SEEK_6 0x0b
|
|
#define READ_REVERSE 0x0f
|
|
#define WRITE_FILEMARKS 0x10
|
|
#define SPACE 0x11
|
|
#define INQUIRY 0x12
|
|
#define RECOVER_BUFFERED_DATA 0x14
|
|
#define MODE_SELECT 0x15
|
|
#define RESERVE 0x16
|
|
#define RELEASE 0x17
|
|
#define COPY 0x18
|
|
#define ERASE 0x19
|
|
#define MODE_SENSE 0x1a
|
|
#define START_STOP 0x1b
|
|
#define RECEIVE_DIAGNOSTIC 0x1c
|
|
#define SEND_DIAGNOSTIC 0x1d
|
|
#define ALLOW_MEDIUM_REMOVAL 0x1e
|
|
|
|
#define READ_FORMAT_CAPACITIES 0x23
|
|
#define SET_WINDOW 0x24
|
|
#define READ_CAPACITY 0x25
|
|
#define READ_10 0x28
|
|
#define WRITE_10 0x2a
|
|
#define SEEK_10 0x2b
|
|
#define POSITION_TO_ELEMENT 0x2b
|
|
#define WRITE_VERIFY 0x2e
|
|
#define VERIFY 0x2f
|
|
#define SEARCH_HIGH 0x30
|
|
#define SEARCH_EQUAL 0x31
|
|
#define SEARCH_LOW 0x32
|
|
#define SET_LIMITS 0x33
|
|
#define PRE_FETCH 0x34
|
|
#define READ_POSITION 0x34
|
|
#define SYNCHRONIZE_CACHE 0x35
|
|
#define LOCK_UNLOCK_CACHE 0x36
|
|
#define READ_DEFECT_DATA 0x37
|
|
#define MEDIUM_SCAN 0x38
|
|
#define COMPARE 0x39
|
|
#define COPY_VERIFY 0x3a
|
|
#define WRITE_BUFFER 0x3b
|
|
#define READ_BUFFER 0x3c
|
|
#define UPDATE_BLOCK 0x3d
|
|
#define READ_LONG 0x3e
|
|
#define WRITE_LONG 0x3f
|
|
#define CHANGE_DEFINITION 0x40
|
|
#define WRITE_SAME 0x41
|
|
#define UNMAP 0x42
|
|
#define READ_TOC 0x43
|
|
#define READ_HEADER 0x44
|
|
#define GET_EVENT_STATUS_NOTIFICATION 0x4a
|
|
#define LOG_SELECT 0x4c
|
|
#define LOG_SENSE 0x4d
|
|
#define XDWRITEREAD_10 0x53
|
|
#define MODE_SELECT_10 0x55
|
|
#define RESERVE_10 0x56
|
|
#define RELEASE_10 0x57
|
|
#define MODE_SENSE_10 0x5a
|
|
#define PERSISTENT_RESERVE_IN 0x5e
|
|
#define PERSISTENT_RESERVE_OUT 0x5f
|
|
#define VARIABLE_LENGTH_CMD 0x7f
|
|
#define REPORT_LUNS 0xa0
|
|
#define SECURITY_PROTOCOL_IN 0xa2
|
|
#define MAINTENANCE_IN 0xa3
|
|
#define MAINTENANCE_OUT 0xa4
|
|
#define MOVE_MEDIUM 0xa5
|
|
#define EXCHANGE_MEDIUM 0xa6
|
|
#define READ_12 0xa8
|
|
#define SERVICE_ACTION_OUT_12 0xa9
|
|
#define WRITE_12 0xaa
|
|
#define SERVICE_ACTION_IN_12 0xab
|
|
#define WRITE_VERIFY_12 0xae
|
|
#define VERIFY_12 0xaf
|
|
#define SEARCH_HIGH_12 0xb0
|
|
#define SEARCH_EQUAL_12 0xb1
|
|
#define SEARCH_LOW_12 0xb2
|
|
#define SECURITY_PROTOCOL_OUT 0xb5
|
|
#define READ_ELEMENT_STATUS 0xb8
|
|
#define SEND_VOLUME_TAG 0xb6
|
|
#define WRITE_LONG_2 0xea
|
|
#define EXTENDED_COPY 0x83
|
|
#define RECEIVE_COPY_RESULTS 0x84
|
|
#define ACCESS_CONTROL_IN 0x86
|
|
#define ACCESS_CONTROL_OUT 0x87
|
|
#define READ_16 0x88
|
|
#define WRITE_16 0x8a
|
|
#define READ_ATTRIBUTE 0x8c
|
|
#define WRITE_ATTRIBUTE 0x8d
|
|
#define VERIFY_16 0x8f
|
|
#define SYNCHRONIZE_CACHE_16 0x91
|
|
#define WRITE_SAME_16 0x93
|
|
#define SERVICE_ACTION_BIDIRECTIONAL 0x9d
|
|
#define SERVICE_ACTION_IN_16 0x9e
|
|
#define SERVICE_ACTION_OUT_16 0x9f
|
|
/* values for service action in */
|
|
#define SAI_READ_CAPACITY_16 0x10
|
|
#define SAI_GET_LBA_STATUS 0x12
|
|
/* values for VARIABLE_LENGTH_CMD service action codes
|
|
* see spc4r17 Section D.3.5, table D.7 and D.8 */
|
|
#define VLC_SA_RECEIVE_CREDENTIAL 0x1800
|
|
/* values for maintenance in */
|
|
#define MI_REPORT_IDENTIFYING_INFORMATION 0x05
|
|
#define MI_REPORT_TARGET_PGS 0x0a
|
|
#define MI_REPORT_ALIASES 0x0b
|
|
#define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c
|
|
#define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d
|
|
#define MI_REPORT_PRIORITY 0x0e
|
|
#define MI_REPORT_TIMESTAMP 0x0f
|
|
#define MI_MANAGEMENT_PROTOCOL_IN 0x10
|
|
/* value for MI_REPORT_TARGET_PGS ext header */
|
|
#define MI_EXT_HDR_PARAM_FMT 0x20
|
|
/* values for maintenance out */
|
|
#define MO_SET_IDENTIFYING_INFORMATION 0x06
|
|
#define MO_SET_TARGET_PGS 0x0a
|
|
#define MO_CHANGE_ALIASES 0x0b
|
|
#define MO_SET_PRIORITY 0x0e
|
|
#define MO_SET_TIMESTAMP 0x0f
|
|
#define MO_MANAGEMENT_PROTOCOL_OUT 0x10
|
|
/* values for variable length command */
|
|
#define XDREAD_32 0x03
|
|
#define XDWRITE_32 0x04
|
|
#define XPWRITE_32 0x06
|
|
#define XDWRITEREAD_32 0x07
|
|
#define READ_32 0x09
|
|
#define VERIFY_32 0x0a
|
|
#define WRITE_32 0x0b
|
|
#define WRITE_SAME_32 0x0d
|
|
|
|
#define SERVICE_ACTION16(cdb) (cdb[1] & 0x1f)
|
|
#define SERVICE_ACTION32(cdb) ((cdb[8] << 8) | cdb[9])
|
|
|
|
static const char *
|
|
scsi_trace_misc(struct trace_seq *, unsigned char *, int);
|
|
|
|
static const char *
|
|
scsi_trace_rw6(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len;
|
|
sector_t lba = 0, txlen = 0;
|
|
|
|
lba |= ((cdb[1] & 0x1F) << 16);
|
|
lba |= (cdb[2] << 8);
|
|
lba |= cdb[3];
|
|
txlen = cdb[4];
|
|
|
|
trace_seq_printf(p, "lba=%llu txlen=%llu",
|
|
(unsigned long long)lba, (unsigned long long)txlen);
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_rw10(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len;
|
|
sector_t lba = 0, txlen = 0;
|
|
|
|
lba |= (cdb[2] << 24);
|
|
lba |= (cdb[3] << 16);
|
|
lba |= (cdb[4] << 8);
|
|
lba |= cdb[5];
|
|
txlen |= (cdb[7] << 8);
|
|
txlen |= cdb[8];
|
|
|
|
trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u",
|
|
(unsigned long long)lba, (unsigned long long)txlen,
|
|
cdb[1] >> 5);
|
|
|
|
if (cdb[0] == WRITE_SAME)
|
|
trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1);
|
|
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_rw12(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len;
|
|
sector_t lba = 0, txlen = 0;
|
|
|
|
lba |= (cdb[2] << 24);
|
|
lba |= (cdb[3] << 16);
|
|
lba |= (cdb[4] << 8);
|
|
lba |= cdb[5];
|
|
txlen |= (cdb[6] << 24);
|
|
txlen |= (cdb[7] << 16);
|
|
txlen |= (cdb[8] << 8);
|
|
txlen |= cdb[9];
|
|
|
|
trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u",
|
|
(unsigned long long)lba, (unsigned long long)txlen,
|
|
cdb[1] >> 5);
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_rw16(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len;
|
|
sector_t lba = 0, txlen = 0;
|
|
|
|
lba |= ((u64)cdb[2] << 56);
|
|
lba |= ((u64)cdb[3] << 48);
|
|
lba |= ((u64)cdb[4] << 40);
|
|
lba |= ((u64)cdb[5] << 32);
|
|
lba |= (cdb[6] << 24);
|
|
lba |= (cdb[7] << 16);
|
|
lba |= (cdb[8] << 8);
|
|
lba |= cdb[9];
|
|
txlen |= (cdb[10] << 24);
|
|
txlen |= (cdb[11] << 16);
|
|
txlen |= (cdb[12] << 8);
|
|
txlen |= cdb[13];
|
|
|
|
trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u",
|
|
(unsigned long long)lba, (unsigned long long)txlen,
|
|
cdb[1] >> 5);
|
|
|
|
if (cdb[0] == WRITE_SAME_16)
|
|
trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1);
|
|
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_rw32(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len, *cmd;
|
|
sector_t lba = 0, txlen = 0;
|
|
u32 ei_lbrt = 0;
|
|
|
|
switch (SERVICE_ACTION32(cdb)) {
|
|
case READ_32:
|
|
cmd = "READ";
|
|
break;
|
|
case VERIFY_32:
|
|
cmd = "VERIFY";
|
|
break;
|
|
case WRITE_32:
|
|
cmd = "WRITE";
|
|
break;
|
|
case WRITE_SAME_32:
|
|
cmd = "WRITE_SAME";
|
|
break;
|
|
default:
|
|
trace_seq_printf(p, "UNKNOWN");
|
|
goto out;
|
|
}
|
|
|
|
lba |= ((u64)cdb[12] << 56);
|
|
lba |= ((u64)cdb[13] << 48);
|
|
lba |= ((u64)cdb[14] << 40);
|
|
lba |= ((u64)cdb[15] << 32);
|
|
lba |= (cdb[16] << 24);
|
|
lba |= (cdb[17] << 16);
|
|
lba |= (cdb[18] << 8);
|
|
lba |= cdb[19];
|
|
ei_lbrt |= (cdb[20] << 24);
|
|
ei_lbrt |= (cdb[21] << 16);
|
|
ei_lbrt |= (cdb[22] << 8);
|
|
ei_lbrt |= cdb[23];
|
|
txlen |= (cdb[28] << 24);
|
|
txlen |= (cdb[29] << 16);
|
|
txlen |= (cdb[30] << 8);
|
|
txlen |= cdb[31];
|
|
|
|
trace_seq_printf(p, "%s_32 lba=%llu txlen=%llu protect=%u ei_lbrt=%u",
|
|
cmd, (unsigned long long)lba,
|
|
(unsigned long long)txlen, cdb[10] >> 5, ei_lbrt);
|
|
|
|
if (SERVICE_ACTION32(cdb) == WRITE_SAME_32)
|
|
trace_seq_printf(p, " unmap=%u", cdb[10] >> 3 & 1);
|
|
|
|
out:
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_unmap(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len;
|
|
unsigned int regions = cdb[7] << 8 | cdb[8];
|
|
|
|
trace_seq_printf(p, "regions=%u", (regions - 8) / 16);
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_service_action_in(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len, *cmd;
|
|
sector_t lba = 0;
|
|
u32 alloc_len = 0;
|
|
|
|
switch (SERVICE_ACTION16(cdb)) {
|
|
case SAI_READ_CAPACITY_16:
|
|
cmd = "READ_CAPACITY_16";
|
|
break;
|
|
case SAI_GET_LBA_STATUS:
|
|
cmd = "GET_LBA_STATUS";
|
|
break;
|
|
default:
|
|
trace_seq_printf(p, "UNKNOWN");
|
|
goto out;
|
|
}
|
|
|
|
lba |= ((u64)cdb[2] << 56);
|
|
lba |= ((u64)cdb[3] << 48);
|
|
lba |= ((u64)cdb[4] << 40);
|
|
lba |= ((u64)cdb[5] << 32);
|
|
lba |= (cdb[6] << 24);
|
|
lba |= (cdb[7] << 16);
|
|
lba |= (cdb[8] << 8);
|
|
lba |= cdb[9];
|
|
alloc_len |= (cdb[10] << 24);
|
|
alloc_len |= (cdb[11] << 16);
|
|
alloc_len |= (cdb[12] << 8);
|
|
alloc_len |= cdb[13];
|
|
|
|
trace_seq_printf(p, "%s lba=%llu alloc_len=%u", cmd,
|
|
(unsigned long long)lba, alloc_len);
|
|
|
|
out:
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_varlen(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
switch (SERVICE_ACTION32(cdb)) {
|
|
case READ_32:
|
|
case VERIFY_32:
|
|
case WRITE_32:
|
|
case WRITE_SAME_32:
|
|
return scsi_trace_rw32(p, cdb, len);
|
|
default:
|
|
return scsi_trace_misc(p, cdb, len);
|
|
}
|
|
}
|
|
|
|
static const char *
|
|
scsi_trace_misc(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
const char *ret = p->buffer + p->len;
|
|
|
|
trace_seq_printf(p, "-");
|
|
trace_seq_putc(p, 0);
|
|
return ret;
|
|
}
|
|
|
|
const char *
|
|
scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len)
|
|
{
|
|
switch (cdb[0]) {
|
|
case READ_6:
|
|
case WRITE_6:
|
|
return scsi_trace_rw6(p, cdb, len);
|
|
case READ_10:
|
|
case VERIFY:
|
|
case WRITE_10:
|
|
case WRITE_SAME:
|
|
return scsi_trace_rw10(p, cdb, len);
|
|
case READ_12:
|
|
case VERIFY_12:
|
|
case WRITE_12:
|
|
return scsi_trace_rw12(p, cdb, len);
|
|
case READ_16:
|
|
case VERIFY_16:
|
|
case WRITE_16:
|
|
case WRITE_SAME_16:
|
|
return scsi_trace_rw16(p, cdb, len);
|
|
case UNMAP:
|
|
return scsi_trace_unmap(p, cdb, len);
|
|
case SERVICE_ACTION_IN_16:
|
|
return scsi_trace_service_action_in(p, cdb, len);
|
|
case VARIABLE_LENGTH_CMD:
|
|
return scsi_trace_varlen(p, cdb, len);
|
|
default:
|
|
return scsi_trace_misc(p, cdb, len);
|
|
}
|
|
}
|
|
|
|
unsigned long long process_scsi_trace_parse_cdb(struct trace_seq *s,
|
|
unsigned long long *args)
|
|
{
|
|
scsi_trace_parse_cdb(s, (unsigned char *) (unsigned long) args[1], args[2]);
|
|
return 0;
|
|
}
|
|
|
|
int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
|
|
{
|
|
pevent_register_print_function(pevent,
|
|
process_scsi_trace_parse_cdb,
|
|
PEVENT_FUNC_ARG_STRING,
|
|
"scsi_trace_parse_cdb",
|
|
PEVENT_FUNC_ARG_PTR,
|
|
PEVENT_FUNC_ARG_PTR,
|
|
PEVENT_FUNC_ARG_INT,
|
|
PEVENT_FUNC_ARG_VOID);
|
|
return 0;
|
|
}
|
|
|
|
void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
|
|
{
|
|
pevent_unregister_print_function(pevent, process_scsi_trace_parse_cdb,
|
|
"scsi_trace_parse_cdb");
|
|
}
|