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|
/*
Unix SMB/CIFS implementation.
randomised byte range lock tester
Copyright (C) Andrew Tridgell 1999
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/>.
*/
#include "includes.h"
#include "libsmb/libsmb.h"
#include "system/filesys.h"
#include "locking/proto.h"
#include "libsmb/nmblib.h"
static fstring password[2];
static fstring username[2];
static int got_user;
static int got_pass;
static bool use_kerberos;
static int numops = 1000;
static bool showall;
static bool analyze;
static bool hide_unlock_fails;
static bool use_oplocks;
static unsigned lock_range = 100;
static unsigned lock_base = 0;
static unsigned min_length = 0;
static bool exact_error_codes;
static bool zero_zero;
extern char *optarg;
extern int optind;
#define FILENAME "\\locktest.dat"
#define READ_PCT 50
#define LOCK_PCT 45
#define UNLOCK_PCT 70
#define RANGE_MULTIPLE 1
#define NSERVERS 2
#define NCONNECTIONS 2
#define NFILES 2
#define LOCK_TIMEOUT 0
#define NASTY_POSIX_LOCK_HACK 0
enum lock_op {OP_LOCK, OP_UNLOCK, OP_REOPEN};
static const char *lock_op_type(int op)
{
if (op == WRITE_LOCK) return "write";
else if (op == READ_LOCK) return "read";
else return "other";
}
static const char *lock_op_name(enum lock_op op)
{
if (op == OP_LOCK) return "lock";
else if (op == OP_UNLOCK) return "unlock";
else return "reopen";
}
struct record {
enum lock_op lock_op;
enum brl_type lock_type;
char conn, f;
uint64_t start, len;
char needed;
};
#define PRESETS 0
#if PRESETS
static struct record preset[] = {
{OP_LOCK, WRITE_LOCK, 0, 0, 2, 0, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 3, 0, 1},
{OP_UNLOCK, 0 , 0, 0, 2, 0, 1},
{OP_REOPEN, 0, 0, 0, 0, 0, 1},
{OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
{OP_LOCK, READ_LOCK, 0, 0, 1, 1, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
{OP_REOPEN, 0, 0, 0, 0, 0, 1},
{OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 3, 1, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
{OP_REOPEN, 0, 0, 0, 0, 0, 1},
{OP_LOCK, READ_LOCK, 0, 0, 2, 0, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 1, 1, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
{OP_REOPEN, 0, 0, 0, 0, 0, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 2, 0, 1},
{OP_LOCK, READ_LOCK, 0, 0, 1, 1, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
{OP_REOPEN, 0, 0, 0, 0, 0, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 2, 0, 1},
{OP_LOCK, READ_LOCK, 0, 0, 3, 1, 1},
{OP_LOCK, WRITE_LOCK, 0, 0, 0, 0, 1},
{OP_REOPEN, 0, 0, 0, 0, 0, 1},
};
#endif
static struct record *recorded;
static void print_brl(struct file_id id,
struct server_id pid,
enum brl_type lock_type,
enum brl_flavour lock_flav,
br_off start,
br_off size,
void *private_data)
{
#if NASTY_POSIX_LOCK_HACK
{
static SMB_INO_T lastino;
if (lastino != ino) {
char *cmd;
if (asprintf(&cmd,
"egrep POSIX.*%u /proc/locks", (int)ino) > 0) {
system(cmd);
SAFE_FREE(cmd);
}
}
lastino = ino;
}
#endif
printf("%s %s %s %.0f:%.0f(%.0f)\n",
procid_str_static(&pid), file_id_string_tos(&id),
lock_type==READ_LOCK?"R":"W",
(double)start, (double)start+size-1,(double)size);
}
static void show_locks(void)
{
brl_forall(print_brl, NULL);
/* system("cat /proc/locks"); */
}
/*****************************************************
return a connection to a server
*******************************************************/
static struct cli_state *connect_one(char *share, int snum)
{
struct cli_state *c;
struct nmb_name called, calling;
char *server_n;
fstring server;
struct sockaddr_storage ss;
fstring myname;
static int count;
NTSTATUS status;
fstrcpy(server,share+2);
share = strchr_m(server,'\\');
if (!share) return NULL;
*share = 0;
share++;
server_n = server;
zero_sockaddr(&ss);
slprintf(myname,sizeof(myname), "lock-%lu-%u", (unsigned long)getpid(), count++);
make_nmb_name(&calling, myname, 0x0);
make_nmb_name(&called , server, 0x20);
again:
zero_sockaddr(&ss);
/* have to open a new connection */
if (!(c=cli_initialise())) {
DEBUG(0,("Connection to %s failed\n", server_n));
return NULL;
}
status = cli_connect(c, server_n, &ss);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Connection to %s failed. Error %s\n", server_n, nt_errstr(status) ));
return NULL;
}
c->use_kerberos = use_kerberos;
if (!cli_session_request(c, &calling, &called)) {
DEBUG(0,("session request to %s failed\n", called.name));
cli_shutdown(c);
if (strcmp(called.name, "*SMBSERVER")) {
make_nmb_name(&called , "*SMBSERVER", 0x20);
goto again;
}
return NULL;
}
DEBUG(4,(" session request ok\n"));
status = cli_negprot(c);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("protocol negotiation failed: %s\n",
nt_errstr(status)));
cli_shutdown(c);
return NULL;
}
if (!got_pass) {
char *pass = getpass("Password: ");
if (pass) {
fstrcpy(password[0], pass);
fstrcpy(password[1], pass);
}
}
if (got_pass == 1) {
strlcpy(password[1], password[0],sizeof(password[1]));
strlcpy(username[1], username[0],sizeof(username[1]));
}
status = cli_session_setup(c, username[snum],
password[snum], strlen(password[snum]),
password[snum], strlen(password[snum]),
lp_workgroup());
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("session setup failed: %s\n", nt_errstr(status)));
return NULL;
}
/*
* These next two lines are needed to emulate
* old client behaviour for people who have
* scripts based on client output.
* QUESTION ? Do we want to have a 'client compatibility
* mode to turn these on/off ? JRA.
*/
if (*c->server_domain || *c->server_os || *c->server_type)
DEBUG(1,("Domain=[%s] OS=[%s] Server=[%s]\n",
c->server_domain,c->server_os,c->server_type));
DEBUG(4,(" session setup ok\n"));
status = cli_tcon_andx(c, share, "?????", password[snum],
strlen(password[snum])+1);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("tree connect failed: %s\n", nt_errstr(status)));
cli_shutdown(c);
return NULL;
}
DEBUG(4,(" tconx ok\n"));
c->use_oplocks = use_oplocks;
return c;
}
static void reconnect(struct cli_state *cli[NSERVERS][NCONNECTIONS], uint16_t fnum[NSERVERS][NCONNECTIONS][NFILES],
char *share[NSERVERS])
{
int server, conn, f;
for (server=0;server<NSERVERS;server++)
for (conn=0;conn<NCONNECTIONS;conn++) {
if (cli[server][conn]) {
for (f=0;f<NFILES;f++) {
if (fnum[server][conn][f] != (uint16_t)-1) {
cli_close(cli[server][conn], fnum[server][conn][f]);
fnum[server][conn][f] = (uint16_t)-1;
}
}
cli_ulogoff(cli[server][conn]);
cli_shutdown(cli[server][conn]);
}
cli[server][conn] = connect_one(share[server], server);
if (!cli[server][conn]) {
DEBUG(0,("Failed to connect to %s\n", share[server]));
exit(1);
}
}
}
static bool test_one(struct cli_state *cli[NSERVERS][NCONNECTIONS],
uint16_t fnum[NSERVERS][NCONNECTIONS][NFILES],
struct record *rec)
{
unsigned conn = rec->conn;
unsigned f = rec->f;
uint64_t start = rec->start;
uint64_t len = rec->len;
enum brl_type op = rec->lock_type;
int server;
bool ret[NSERVERS];
NTSTATUS status[NSERVERS];
switch (rec->lock_op) {
case OP_LOCK:
/* set a lock */
for (server=0;server<NSERVERS;server++) {
ret[server] = cli_lock64(cli[server][conn],
fnum[server][conn][f],
start, len, LOCK_TIMEOUT, op);
status[server] = cli_nt_error(cli[server][conn]);
if (!exact_error_codes &&
NT_STATUS_EQUAL(status[server],
NT_STATUS_FILE_LOCK_CONFLICT)) {
status[server] = NT_STATUS_LOCK_NOT_GRANTED;
}
}
if (showall || !NT_STATUS_EQUAL(status[0],status[1])) {
printf("lock conn=%u f=%u range=%.0f(%.0f) op=%s -> %s:%s\n",
conn, f,
(double)start, (double)len,
op==READ_LOCK?"READ_LOCK":"WRITE_LOCK",
nt_errstr(status[0]), nt_errstr(status[1]));
}
if (showall || !NT_STATUS_EQUAL(status[0],status[1])) show_locks();
if (!NT_STATUS_EQUAL(status[0],status[1])) return False;
break;
case OP_UNLOCK:
/* unset a lock */
for (server=0;server<NSERVERS;server++) {
ret[server] = NT_STATUS_IS_OK(cli_unlock64(cli[server][conn],
fnum[server][conn][f],
start, len));
status[server] = cli_nt_error(cli[server][conn]);
}
if (showall ||
(!hide_unlock_fails && !NT_STATUS_EQUAL(status[0],status[1]))) {
printf("unlock conn=%u f=%u range=%.0f(%.0f) -> %s:%s\n",
conn, f,
(double)start, (double)len,
nt_errstr(status[0]), nt_errstr(status[1]));
}
if (showall || !NT_STATUS_EQUAL(status[0],status[1])) show_locks();
if (!hide_unlock_fails && !NT_STATUS_EQUAL(status[0],status[1]))
return False;
break;
case OP_REOPEN:
/* reopen the file */
for (server=0;server<NSERVERS;server++) {
cli_close(cli[server][conn], fnum[server][conn][f]);
fnum[server][conn][f] = (uint16_t)-1;
}
for (server=0;server<NSERVERS;server++) {
fnum[server][conn][f] = (uint16_t)-1;
if (!NT_STATUS_IS_OK(cli_open(cli[server][conn], FILENAME,
O_RDWR|O_CREAT,
DENY_NONE, &fnum[server][conn][f]))) {
printf("failed to reopen on share%d\n", server);
return False;
}
}
if (showall) {
printf("reopen conn=%u f=%u\n",
conn, f);
show_locks();
}
break;
}
return True;
}
static void close_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
uint16_t fnum[NSERVERS][NCONNECTIONS][NFILES])
{
int server, conn, f;
for (server=0;server<NSERVERS;server++)
for (conn=0;conn<NCONNECTIONS;conn++)
for (f=0;f<NFILES;f++) {
if (fnum[server][conn][f] != (uint16_t)-1) {
cli_close(cli[server][conn], fnum[server][conn][f]);
fnum[server][conn][f] = (uint16_t)-1;
}
}
for (server=0;server<NSERVERS;server++) {
cli_unlink(cli[server][0], FILENAME, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
}
}
static void open_files(struct cli_state *cli[NSERVERS][NCONNECTIONS],
uint16_t fnum[NSERVERS][NCONNECTIONS][NFILES])
{
int server, conn, f;
for (server=0;server<NSERVERS;server++)
for (conn=0;conn<NCONNECTIONS;conn++)
for (f=0;f<NFILES;f++) {
fnum[server][conn][f] = (uint16_t)-1;
if (!NT_STATUS_IS_OK(cli_open(cli[server][conn], FILENAME,
O_RDWR|O_CREAT,
DENY_NONE,
&fnum[server][conn][f]))) {
fprintf(stderr,"Failed to open fnum[%u][%u][%u]\n",
server, conn, f);
exit(1);
}
}
}
static int retest(struct cli_state *cli[NSERVERS][NCONNECTIONS],
uint16_t fnum[NSERVERS][NCONNECTIONS][NFILES],
int n)
{
int i;
printf("testing %u ...\n", n);
for (i=0; i<n; i++) {
if (i && i % 100 == 0) {
printf("%u\n", i);
}
if (recorded[i].needed &&
!test_one(cli, fnum, &recorded[i])) return i;
}
return n;
}
/* each server has two connections open to it. Each connection has two file
descriptors open on the file - 8 file descriptors in total
we then do random locking ops in tamdem on the 4 fnums from each
server and ensure that the results match
*/
static void test_locks(char *share[NSERVERS])
{
struct cli_state *cli[NSERVERS][NCONNECTIONS];
uint16_t fnum[NSERVERS][NCONNECTIONS][NFILES];
int n, i, n1, skip, r1, r2;
ZERO_STRUCT(fnum);
ZERO_STRUCT(cli);
recorded = SMB_MALLOC_ARRAY(struct record, numops);
for (n=0; n<numops; n++) {
#if PRESETS
if (n < sizeof(preset) / sizeof(preset[0])) {
recorded[n] = preset[n];
} else {
#endif
recorded[n].conn = random() % NCONNECTIONS;
recorded[n].f = random() % NFILES;
recorded[n].start = lock_base + ((unsigned)random() % (lock_range-1));
recorded[n].len = min_length +
random() % (lock_range-(recorded[n].start-lock_base));
recorded[n].start *= RANGE_MULTIPLE;
recorded[n].len *= RANGE_MULTIPLE;
r1 = random() % 100;
r2 = random() % 100;
if (r1 < READ_PCT) {
recorded[n].lock_type = READ_LOCK;
} else {
recorded[n].lock_type = WRITE_LOCK;
}
if (r2 < LOCK_PCT) {
recorded[n].lock_op = OP_LOCK;
} else if (r2 < UNLOCK_PCT) {
recorded[n].lock_op = OP_UNLOCK;
} else {
recorded[n].lock_op = OP_REOPEN;
}
recorded[n].needed = True;
if (!zero_zero && recorded[n].start==0 && recorded[n].len==0) {
recorded[n].len = 1;
}
#if PRESETS
}
#endif
}
reconnect(cli, fnum, share);
open_files(cli, fnum);
n = retest(cli, fnum, numops);
if (n == numops || !analyze) return;
n++;
skip = n/2;
while (1) {
n1 = n;
close_files(cli, fnum);
reconnect(cli, fnum, share);
open_files(cli, fnum);
for (i=0;i<n-skip;i+=skip) {
int m, j;
printf("excluding %d-%d\n", i, i+skip-1);
for (j=i;j<i+skip;j++) {
recorded[j].needed = False;
}
close_files(cli, fnum);
open_files(cli, fnum);
m = retest(cli, fnum, n);
if (m == n) {
for (j=i;j<i+skip;j++) {
recorded[j].needed = True;
}
} else {
if (i+(skip-1) < m) {
memmove(&recorded[i], &recorded[i+skip],
(m-(i+skip-1))*sizeof(recorded[0]));
}
n = m-(skip-1);
i--;
}
}
if (skip > 1) {
skip = skip/2;
printf("skip=%d\n", skip);
continue;
}
if (n1 == n) break;
}
close_files(cli, fnum);
reconnect(cli, fnum, share);
open_files(cli, fnum);
showall = True;
n1 = retest(cli, fnum, n);
if (n1 != n-1) {
printf("ERROR - inconsistent result (%u %u)\n", n1, n);
}
close_files(cli, fnum);
for (i=0;i<n;i++) {
printf("{%s, %s, conn = %u, file = %u, start = %.0f, len = %.0f, %u},\n",
lock_op_name(recorded[i].lock_op),
lock_op_type(recorded[i].lock_type),
recorded[i].conn,
recorded[i].f,
(double)recorded[i].start,
(double)recorded[i].len,
recorded[i].needed);
}
}
static void usage(void)
{
printf(
"Usage:\n\
locktest //server1/share1 //server2/share2 [options..]\n\
options:\n\
-U user%%pass (may be specified twice)\n\
-k use kerberos\n\
-s seed\n\
-o numops\n\
-u hide unlock fails\n\
-a (show all ops)\n\
-A analyse for minimal ops\n\
-O use oplocks\n\
-E enable exact error code checking\n\
-Z enable the zero/zero lock\n\
-R range set lock range\n\
-B base set lock base\n\
-M min set min lock length\n\
");
}
/****************************************************************************
main program
****************************************************************************/
int main(int argc,char *argv[])
{
char *share[NSERVERS];
int opt;
char *p;
int seed, server;
setlinebuf(stdout);
load_case_tables();
if (argc < 3 || argv[1][0] == '-') {
usage();
exit(1);
}
setup_logging(argv[0], DEBUG_STDOUT);
for (server=0;server<NSERVERS;server++) {
share[server] = argv[1+server];
all_string_sub(share[server],"/","\\",0);
}
argc -= NSERVERS;
argv += NSERVERS;
lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
load_interfaces();
if (getenv("USER")) {
fstrcpy(username[0],getenv("USER"));
fstrcpy(username[1],getenv("USER"));
}
seed = time(NULL);
while ((opt = getopt(argc, argv, "U:s:ho:aAW:OkR:B:M:EZ")) != EOF) {
switch (opt) {
case 'k':
#ifdef HAVE_KRB5
use_kerberos = True;
#else
d_printf("No kerberos support compiled in\n");
exit(1);
#endif
break;
case 'U':
got_user = 1;
if (got_pass == 2) {
d_printf("Max of 2 usernames\n");
exit(1);
}
fstrcpy(username[got_pass],optarg);
p = strchr_m(username[got_pass],'%');
if (p) {
*p = 0;
fstrcpy(password[got_pass], p+1);
got_pass++;
}
break;
case 'R':
lock_range = strtol(optarg, NULL, 0);
break;
case 'B':
lock_base = strtol(optarg, NULL, 0);
break;
case 'M':
min_length = strtol(optarg, NULL, 0);
break;
case 's':
seed = atoi(optarg);
break;
case 'u':
hide_unlock_fails = True;
break;
case 'o':
numops = atoi(optarg);
break;
case 'O':
use_oplocks = True;
break;
case 'a':
showall = True;
break;
case 'A':
analyze = True;
break;
case 'Z':
zero_zero = True;
break;
case 'E':
exact_error_codes = True;
break;
case 'h':
usage();
exit(1);
default:
printf("Unknown option %c (%d)\n", (char)opt, opt);
exit(1);
}
}
if(use_kerberos && !got_user) got_pass = True;
argc -= optind;
argv += optind;
DEBUG(0,("seed=%u\n", seed));
srandom(seed);
test_locks(share);
return(0);
}
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