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/*
Unix SMB/CIFS implementation.
ping pong test
Copyright (C) Ronnie Sahlberg 2007
Significantly based on and borrowed from lockbench.c by
Copyright (C) Andrew Tridgell 2006
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
filename is specified by
--option=torture:filename=...
number of locks is specified by
--option=torture:num_locks=...
locktimeout is specified in ms by
--option=torture:locktimeout=...
default is 100 seconds
if set to 0 pingpong will instead loop trying the lock operation
over and over until it completes.
reading from the file can be enabled with
--option=torture:read=true
writing to the file can be enabled with
--option=torture:write=true
*/
#include "includes.h"
#include "system/time.h"
#include "system/filesys.h"
#include "libcli/libcli.h"
#include "torture/util.h"
#include "torture/raw/proto.h"
static void lock_byte(struct smbcli_state *cli, int fd, int offset, int lock_timeout)
{
union smb_lock io;
struct smb_lock_entry lock;
NTSTATUS status;
try_again:
ZERO_STRUCT(lock);
io.lockx.in.ulock_cnt = 0;
io.lockx.in.lock_cnt = 1;
lock.count = 1;
lock.offset = offset;
lock.pid = cli->tree->session->pid;
io.lockx.level = RAW_LOCK_LOCKX;
io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
io.lockx.in.timeout = lock_timeout;
io.lockx.in.locks = &lock;
io.lockx.in.file.fnum = fd;
status = smb_raw_lock(cli->tree, &io);
/* If we don't use timeouts and we got file lock conflict
just try the lock again.
*/
if (lock_timeout==0) {
if ( (NT_STATUS_EQUAL(NT_STATUS_FILE_LOCK_CONFLICT, status))
||(NT_STATUS_EQUAL(NT_STATUS_LOCK_NOT_GRANTED, status)) ) {
goto try_again;
}
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Lock failed\n"));
exit(1);
}
}
static void unlock_byte(struct smbcli_state *cli, int fd, int offset)
{
union smb_lock io;
struct smb_lock_entry lock;
NTSTATUS status;
ZERO_STRUCT(lock);
io.lockx.in.ulock_cnt = 1;
io.lockx.in.lock_cnt = 0;
lock.count = 1;
lock.offset = offset;
lock.pid = cli->tree->session->pid;
io.lockx.level = RAW_LOCK_LOCKX;
io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
io.lockx.in.timeout = 100000;
io.lockx.in.locks = &lock;
io.lockx.in.file.fnum = fd;
status = smb_raw_lock(cli->tree, &io);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Unlock failed\n"));
exit(1);
}
}
static void write_byte(struct smbcli_state *cli, int fd, uint8_t c, int offset)
{
union smb_write io;
NTSTATUS status;
io.generic.level = RAW_WRITE_WRITEX;
io.writex.in.file.fnum = fd;
io.writex.in.offset = offset;
io.writex.in.wmode = 0;
io.writex.in.remaining = 0;
io.writex.in.count = 1;
io.writex.in.data = &c;
status = smb_raw_write(cli->tree, &io);
if (!NT_STATUS_IS_OK(status)) {
printf("write failed\n");
exit(1);
}
}
static void read_byte(struct smbcli_state *cli, int fd, uint8_t *c, int offset)
{
union smb_read io;
NTSTATUS status;
io.generic.level = RAW_READ_READX;
io.readx.in.file.fnum = fd;
io.readx.in.mincnt = 1;
io.readx.in.maxcnt = 1;
io.readx.in.offset = offset;
io.readx.in.remaining = 0;
io.readx.in.read_for_execute = false;
io.readx.out.data = c;
status = smb_raw_read(cli->tree, &io);
if (!NT_STATUS_IS_OK(status)) {
printf("read failed\n");
exit(1);
}
}
/*
ping pong
*/
bool torture_ping_pong(struct torture_context *torture)
{
const char *fn;
int num_locks;
TALLOC_CTX *mem_ctx = talloc_new(torture);
static bool do_reads;
static bool do_writes;
int lock_timeout;
int fd;
struct smbcli_state *cli;
int i;
uint8_t incr=0, last_incr=0;
uint8_t *val;
int count, loops;
struct timeval start;
fn = torture_setting_string(torture, "filename", NULL);
if (fn == NULL) {
DEBUG(0,("You must specify the filename using --option=torture:filename=...\n"));
return false;
}
num_locks = torture_setting_int(torture, "num_locks", -1);
if (num_locks == -1) {
DEBUG(0,("You must specify num_locks using --option=torture:num_locks=...\n"));
return false;
}
do_reads = torture_setting_bool(torture, "read", false);
do_writes = torture_setting_bool(torture, "write", false);
lock_timeout = torture_setting_int(torture, "lock_timeout", 100000);
if (!torture_open_connection(&cli, torture, 0)) {
DEBUG(0,("Could not open connection\n"));
return false;
}
fd = smbcli_open(cli->tree, fn, O_RDWR|O_CREAT, DENY_NONE);
if (fd == -1) {
printf("Failed to open %s\n", fn);
exit(1);
}
write_byte(cli, fd, 0, num_locks);
lock_byte(cli, fd, 0, lock_timeout);
start = timeval_current();
val = talloc_zero_array(mem_ctx, uint8_t, num_locks);
i = 0;
count = 0;
loops = 0;
while (1) {
lock_byte(cli, fd, (i+1)%num_locks, lock_timeout);
if (do_reads) {
uint8_t c;
read_byte(cli, fd, &c, i);
incr = c-val[i];
val[i] = c;
}
if (do_writes) {
uint8_t c = val[i] + 1;
write_byte(cli, fd, c, i);
}
unlock_byte(cli, fd, i);
i = (i+1)%num_locks;
count++;
if (loops>num_locks && incr!=last_incr) {
last_incr = incr;
printf("data increment = %u\n", incr);
fflush(stdout);
}
if (timeval_elapsed(&start) > 1.0) {
printf("%8u locks/sec\r",
(unsigned)(2*count/timeval_elapsed(&start)));
fflush(stdout);
start = timeval_current();
count=0;
}
loops++;
}
}
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