/* 
   Unix SMB/CIFS implementation.
   SMB torture tester
   Copyright (C) Andrew Tridgell 1997-2003
   Copyright (C) Jelmer Vernooij 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 2 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"
#include "libcli/raw/libcliraw.h"
#include "system/time.h"
#include "system/wait.h"
#include "system/filesys.h"
#include "libcli/raw/ioctl.h"
#include "libcli/libcli.h"
#include "lib/ldb/include/ldb.h"
#include "lib/events/events.h"
#include "libcli/resolve/resolve.h"
#include "auth/credentials/credentials.h"
#include "libcli/ldap/ldap_client.h"
#include "librpc/gen_ndr/ndr_nbt.h"
#include "torture/torture.h"

#include "torture/raw/proto.h"
#include "libcli/smb2/smb2.h"
#include "torture/smb2/proto.h"
#include "torture/rap/proto.h"
#include "torture/auth/proto.h"
#include "torture/local/proto.h"
#include "torture/nbench/proto.h"
#include "torture/ldap/proto.h"
#include "torture/com/proto.h"
#include "torture/nbt/proto.h"
#include "torture/libnet/proto.h"
#include "torture/util.h"
#include "build.h"
#include "dlinklist.h"

_PUBLIC_ int torture_nprocs=4;
_PUBLIC_ int torture_numops=10;
_PUBLIC_ int torture_entries=1000;
_PUBLIC_ int torture_failures=1;
_PUBLIC_ int torture_seed=0;
_PUBLIC_ int torture_numasync=100;
_PUBLIC_ BOOL use_oplocks;
static int procnum; /* records process count number when forking */
static struct smbcli_state *current_cli;
_PUBLIC_ BOOL use_level_II_oplocks;
_PUBLIC_ BOOL torture_showall = False;




static BOOL wait_lock(struct smbcli_state *c, int fnum, uint32_t offset, uint32_t len)
{
	while (NT_STATUS_IS_ERR(smbcli_lock(c->tree, fnum, offset, len, -1, WRITE_LOCK))) {
		if (!check_error(__location__, c, ERRDOS, ERRlock, NT_STATUS_LOCK_NOT_GRANTED)) return False;
	}
	return True;
}


static BOOL rw_torture(struct smbcli_state *c)
{
	const char *lockfname = "\\torture.lck";
	char *fname;
	int fnum;
	int fnum2;
	pid_t pid2, pid = getpid();
	int i, j;
	uint8_t buf[1024];
	BOOL correct = True;

	fnum2 = smbcli_open(c->tree, lockfname, O_RDWR | O_CREAT | O_EXCL, 
			 DENY_NONE);
	if (fnum2 == -1)
		fnum2 = smbcli_open(c->tree, lockfname, O_RDWR, DENY_NONE);
	if (fnum2 == -1) {
		printf("open of %s failed (%s)\n", lockfname, smbcli_errstr(c->tree));
		return False;
	}


	for (i=0;i<torture_numops;i++) {
		uint_t n = (uint_t)random()%10;
		if (i % 10 == 0) {
			printf("%d\r", i); fflush(stdout);
		}
		asprintf(&fname, "\\torture.%u", n);

		if (!wait_lock(c, fnum2, n*sizeof(int), sizeof(int))) {
			return False;
		}

		fnum = smbcli_open(c->tree, fname, O_RDWR | O_CREAT | O_TRUNC, DENY_ALL);
		if (fnum == -1) {
			printf("open failed (%s)\n", smbcli_errstr(c->tree));
			correct = False;
			break;
		}

		if (smbcli_write(c->tree, fnum, 0, &pid, 0, sizeof(pid)) != sizeof(pid)) {
			printf("write failed (%s)\n", smbcli_errstr(c->tree));
			correct = False;
		}

		for (j=0;j<50;j++) {
			if (smbcli_write(c->tree, fnum, 0, buf, 
				      sizeof(pid)+(j*sizeof(buf)), 
				      sizeof(buf)) != sizeof(buf)) {
				printf("write failed (%s)\n", smbcli_errstr(c->tree));
				correct = False;
			}
		}

		pid2 = 0;

		if (smbcli_read(c->tree, fnum, &pid2, 0, sizeof(pid)) != sizeof(pid)) {
			printf("read failed (%s)\n", smbcli_errstr(c->tree));
			correct = False;
		}

		if (pid2 != pid) {
			printf("data corruption!\n");
			correct = False;
		}

		if (NT_STATUS_IS_ERR(smbcli_close(c->tree, fnum))) {
			printf("close failed (%s)\n", smbcli_errstr(c->tree));
			correct = False;
		}

		if (NT_STATUS_IS_ERR(smbcli_unlink(c->tree, fname))) {
			printf("unlink failed (%s)\n", smbcli_errstr(c->tree));
			correct = False;
		}

		if (NT_STATUS_IS_ERR(smbcli_unlock(c->tree, fnum2, n*sizeof(int), sizeof(int)))) {
			printf("unlock failed (%s)\n", smbcli_errstr(c->tree));
			correct = False;
		}
		free(fname);
	}

	smbcli_close(c->tree, fnum2);
	smbcli_unlink(c->tree, lockfname);

	printf("%d\n", i);

	return correct;
}

static BOOL run_torture(struct smbcli_state *cli, int dummy)
{
    BOOL ret;

	ret = rw_torture(cli);
	
	if (!torture_close_connection(cli)) {
		ret = False;
	}

	return ret;
}


/*
  see how many RPC pipes we can open at once
*/
static BOOL run_pipe_number(struct torture_context *torture)
{
	struct smbcli_state *cli1;
	const char *pipe_name = "\\WKSSVC";
	int fnum;
	int num_pipes = 0;

	printf("starting pipenumber test\n");
	if (!torture_open_connection(&cli1)) {
		return False;
	}

	while(1) {
		fnum = smbcli_nt_create_full(cli1->tree, pipe_name, 0, SEC_FILE_READ_DATA, FILE_ATTRIBUTE_NORMAL,
				   NTCREATEX_SHARE_ACCESS_READ|NTCREATEX_SHARE_ACCESS_WRITE, NTCREATEX_DISP_OPEN_IF, 0, 0);

		if (fnum == -1) {
			printf("Open of pipe %s failed with error (%s)\n", pipe_name, smbcli_errstr(cli1->tree));
			break;
		}
		num_pipes++;
		printf("%d\r", num_pipes);
		fflush(stdout);
	}

	printf("pipe_number test - we can open %d %s pipes.\n", num_pipes, pipe_name );
	torture_close_connection(cli1);
	return True;
}




/*
  open N connections to the server and just hold them open
  used for testing performance when there are N idle users
  already connected
 */
 static BOOL torture_holdcon(struct torture_context *torture)
{
	int i;
	struct smbcli_state **cli;
	int num_dead = 0;

	printf("Opening %d connections\n", torture_numops);
	
	cli = malloc_array_p(struct smbcli_state *, torture_numops);

	for (i=0;i<torture_numops;i++) {
		if (!torture_open_connection(&cli[i])) {
			return False;
		}
		printf("opened %d connections\r", i);
		fflush(stdout);
	}

	printf("\nStarting pings\n");

	while (1) {
		for (i=0;i<torture_numops;i++) {
			NTSTATUS status;
			if (cli[i]) {
				status = smbcli_chkpath(cli[i]->tree, "\\");
				if (!NT_STATUS_IS_OK(status)) {
					printf("Connection %d is dead\n", i);
					cli[i] = NULL;
					num_dead++;
				}
				usleep(100);
			}
		}

		if (num_dead == torture_numops) {
			printf("All connections dead - finishing\n");
			break;
		}

		printf(".");
		fflush(stdout);
	}

	return True;
}

/*
test how many open files this server supports on the one socket
*/
static BOOL run_maxfidtest(struct smbcli_state *cli, int dummy)
{
#define MAXFID_TEMPLATE "\\maxfid\\fid%d\\maxfid.%d.%d"
	char *fname;
	int fnums[0x11000], i;
	int retries=4, maxfid;
	BOOL correct = True;

	if (retries <= 0) {
		printf("failed to connect\n");
		return False;
	}

	if (smbcli_deltree(cli->tree, "\\maxfid") == -1) {
		printf("Failed to deltree \\maxfid - %s\n",
		       smbcli_errstr(cli->tree));
		return False;
	}
	if (NT_STATUS_IS_ERR(smbcli_mkdir(cli->tree, "\\maxfid"))) {
		printf("Failed to mkdir \\maxfid, error=%s\n", 
		       smbcli_errstr(cli->tree));
		return False;
	}

	printf("Testing maximum number of open files\n");

	for (i=0; i<0x11000; i++) {
		if (i % 1000 == 0) {
			asprintf(&fname, "\\maxfid\\fid%d", i/1000);
			if (NT_STATUS_IS_ERR(smbcli_mkdir(cli->tree, fname))) {
				printf("Failed to mkdir %s, error=%s\n", 
				       fname, smbcli_errstr(cli->tree));
				return False;
			}
			free(fname);
		}
		asprintf(&fname, MAXFID_TEMPLATE, i/1000, i,(int)getpid());
		if ((fnums[i] = smbcli_open(cli->tree, fname, 
					O_RDWR|O_CREAT|O_TRUNC, DENY_NONE)) ==
		    -1) {
			printf("open of %s failed (%s)\n", 
			       fname, smbcli_errstr(cli->tree));
			printf("maximum fnum is %d\n", i);
			break;
		}
		free(fname);
		printf("%6d\r", i);
	}
	printf("%6d\n", i);
	i--;

	maxfid = i;

	printf("cleaning up\n");
	for (i=0;i<maxfid/2;i++) {
		asprintf(&fname, MAXFID_TEMPLATE, i/1000, i,(int)getpid());
		if (NT_STATUS_IS_ERR(smbcli_close(cli->tree, fnums[i]))) {
			printf("Close of fnum %d failed - %s\n", fnums[i], smbcli_errstr(cli->tree));
		}
		if (NT_STATUS_IS_ERR(smbcli_unlink(cli->tree, fname))) {
			printf("unlink of %s failed (%s)\n", 
			       fname, smbcli_errstr(cli->tree));
			correct = False;
		}
		free(fname);

		asprintf(&fname, MAXFID_TEMPLATE, (maxfid-i)/1000, maxfid-i,(int)getpid());
		if (NT_STATUS_IS_ERR(smbcli_close(cli->tree, fnums[maxfid-i]))) {
			printf("Close of fnum %d failed - %s\n", fnums[maxfid-i], smbcli_errstr(cli->tree));
		}
		if (NT_STATUS_IS_ERR(smbcli_unlink(cli->tree, fname))) {
			printf("unlink of %s failed (%s)\n", 
			       fname, smbcli_errstr(cli->tree));
			correct = False;
		}
		free(fname);

		printf("%6d %6d\r", i, maxfid-i);
	}
	printf("%6d\n", 0);

	if (smbcli_deltree(cli->tree, "\\maxfid") == -1) {
		printf("Failed to deltree \\maxfid - %s\n",
		       smbcli_errstr(cli->tree));
		return False;
	}

	printf("maxfid test finished\n");
	if (!torture_close_connection(cli)) {
		correct = False;
	}
	return correct;
#undef MAXFID_TEMPLATE
}



/*
  sees what IOCTLs are supported
 */
static BOOL torture_ioctl_test(struct torture_context *torture)
{
	struct smbcli_state *cli;
	uint16_t device, function;
	int fnum;
	const char *fname = "\\ioctl.dat";
	NTSTATUS status;
	union smb_ioctl parms;
	TALLOC_CTX *mem_ctx;

	if (!torture_open_connection(&cli)) {
		return False;
	}

	mem_ctx = talloc_init("ioctl_test");

	printf("starting ioctl test\n");

	smbcli_unlink(cli->tree, fname);

	fnum = smbcli_open(cli->tree, fname, O_RDWR|O_CREAT|O_EXCL, DENY_NONE);
	if (fnum == -1) {
		printf("open of %s failed (%s)\n", fname, smbcli_errstr(cli->tree));
		return False;
	}

	parms.ioctl.level = RAW_IOCTL_IOCTL;
	parms.ioctl.in.file.fnum = fnum;
	parms.ioctl.in.request = IOCTL_QUERY_JOB_INFO;
	status = smb_raw_ioctl(cli->tree, mem_ctx, &parms);
	printf("ioctl job info: %s\n", smbcli_errstr(cli->tree));

	for (device=0;device<0x100;device++) {
		printf("testing device=0x%x\n", device);
		for (function=0;function<0x100;function++) {
			parms.ioctl.in.request = (device << 16) | function;
			status = smb_raw_ioctl(cli->tree, mem_ctx, &parms);

			if (NT_STATUS_IS_OK(status)) {
				printf("ioctl device=0x%x function=0x%x OK : %d bytes\n", 
					device, function, (int)parms.ioctl.out.blob.length);
			}
		}
	}

	if (!torture_close_connection(cli)) {
		return False;
	}

	return True;
}


static void sigcont(int sig)
{
}

double torture_create_procs(BOOL (*fn)(struct smbcli_state *, int), BOOL *result)
{
	int i, status;
	volatile pid_t *child_status;
	volatile BOOL *child_status_out;
	int synccount;
	int tries = 8;
	double start_time_limit = 10 + (torture_nprocs * 1.5);
	char **unc_list = NULL;
	const char *p;
	int num_unc_names = 0;
	struct timeval tv;

	*result = True;

	synccount = 0;

	signal(SIGCONT, sigcont);

	child_status = (volatile pid_t *)shm_setup(sizeof(pid_t)*torture_nprocs);
	if (!child_status) {
		printf("Failed to setup shared memory\n");
		return -1;
	}

	child_status_out = (volatile BOOL *)shm_setup(sizeof(BOOL)*torture_nprocs);
	if (!child_status_out) {
		printf("Failed to setup result status shared memory\n");
		return -1;
	}

	p = lp_parm_string(-1, "torture", "unclist");
	if (p) {
		unc_list = file_lines_load(p, &num_unc_names, NULL);
		if (!unc_list || num_unc_names <= 0) {
			printf("Failed to load unc names list from '%s'\n", p);
			exit(1);
		}
	}

	for (i = 0; i < torture_nprocs; i++) {
		child_status[i] = 0;
		child_status_out[i] = True;
	}

	tv = timeval_current();

	for (i=0;i<torture_nprocs;i++) {
		procnum = i;
		if (fork() == 0) {
			char *myname;
			char *hostname=NULL, *sharename;

			pid_t mypid = getpid();
			srandom(((int)mypid) ^ ((int)time(NULL)));

			asprintf(&myname, "CLIENT%d", i);
			lp_set_cmdline("netbios name", myname);
			free(myname);


			if (unc_list) {
				if (!smbcli_parse_unc(unc_list[i % num_unc_names],
						      NULL, &hostname, &sharename)) {
					printf("Failed to parse UNC name %s\n",
					       unc_list[i % num_unc_names]);
					exit(1);
				}
			}

			while (1) {
				if (hostname) {
					if (torture_open_connection_share(NULL,
									  &current_cli,
									  hostname, 
									  sharename,
									  NULL)) {
						break;
					}
				} else if (torture_open_connection(&current_cli)) {
						break;
				}
				if (tries-- == 0) {
					printf("pid %d failed to start\n", (int)getpid());
					_exit(1);
				}
				msleep(100);	
			}

			child_status[i] = getpid();

			pause();

			if (child_status[i]) {
				printf("Child %d failed to start!\n", i);
				child_status_out[i] = 1;
				_exit(1);
			}

			child_status_out[i] = fn(current_cli, i);
			_exit(0);
		}
	}

	do {
		synccount = 0;
		for (i=0;i<torture_nprocs;i++) {
			if (child_status[i]) synccount++;
		}
		if (synccount == torture_nprocs) break;
		msleep(100);
	} while (timeval_elapsed(&tv) < start_time_limit);

	if (synccount != torture_nprocs) {
		printf("FAILED TO START %d CLIENTS (started %d)\n", torture_nprocs, synccount);
		*result = False;
		return timeval_elapsed(&tv);
	}

	printf("Starting %d clients\n", torture_nprocs);

	/* start the client load */
	tv = timeval_current();
	for (i=0;i<torture_nprocs;i++) {
		child_status[i] = 0;
	}

	printf("%d clients started\n", torture_nprocs);

	kill(0, SIGCONT);

	for (i=0;i<torture_nprocs;i++) {
		int ret;
		while ((ret=waitpid(0, &status, 0)) == -1 && errno == EINTR) /* noop */ ;
		if (ret == -1 || WEXITSTATUS(status) != 0) {
			*result = False;
		}
	}

	printf("\n");
	
	for (i=0;i<torture_nprocs;i++) {
		if (!child_status_out[i]) {
			*result = False;
		}
	}
	return timeval_elapsed(&tv);
}

#define FLAG_MULTIPROC 1

static struct {
	const char *name;
	BOOL (*fn)(struct torture_context *);
	BOOL (*multi_fn)(struct smbcli_state *, int );
} builtin_torture_ops[] = {
	/* benchmarking tests */
	{"BENCH-HOLDCON",  torture_holdcon, 0},
	{"BENCH-NBENCH",  torture_nbench, 0},
	{"BENCH-TORTURE", NULL, run_torture},
	{"BENCH-NBT",     torture_bench_nbt, 0},
	{"BENCH-WINS",    torture_bench_wins, 0},
	{"BENCH-CLDAP",   torture_bench_cldap, 0},
	{"BENCH-OPLOCK",   torture_bench_oplock, 0},

	/* RAW smb tests */
	{"RAW-QFSINFO", torture_raw_qfsinfo, 0},
	{"RAW-QFILEINFO", torture_raw_qfileinfo, 0},
	{"RAW-SFILEINFO", torture_raw_sfileinfo, 0},
	{"RAW-SFILEINFO-BUG", torture_raw_sfileinfo_bug, 0},
	{"RAW-SEARCH", torture_raw_search, 0},
	{"RAW-CLOSE", torture_raw_close, 0},
	{"RAW-OPEN", torture_raw_open, 0},
	{"RAW-MKDIR", torture_raw_mkdir, 0},
	{"RAW-OPLOCK", torture_raw_oplock, 0},
	{"RAW-NOTIFY", torture_raw_notify, 0},
	{"RAW-MUX", torture_raw_mux, 0},
	{"RAW-IOCTL", torture_raw_ioctl, 0},
	{"RAW-CHKPATH", torture_raw_chkpath, 0},
	{"RAW-UNLINK", torture_raw_unlink, 0},
	{"RAW-READ", torture_raw_read, 0},
	{"RAW-WRITE", torture_raw_write, 0},
	{"RAW-LOCK", torture_raw_lock, 0},
	{"RAW-CONTEXT", torture_raw_context, 0},
	{"RAW-RENAME", torture_raw_rename, 0},
	{"RAW-SEEK", torture_raw_seek, 0},
	{"RAW-EAS", torture_raw_eas, 0},
	{"RAW-STREAMS", torture_raw_streams, 0},
	{"RAW-ACLS", torture_raw_acls, 0},
	{"RAW-COMPOSITE", torture_raw_composite, 0},

	/* SMB2 tests */
	{"SMB2-CONNECT", torture_smb2_connect, 0},
	{"SMB2-SCAN", torture_smb2_scan, 0},
	{"SMB2-SCANGETINFO", torture_smb2_getinfo_scan, 0},
	{"SMB2-SCANSETINFO", torture_smb2_setinfo_scan, 0},
	{"SMB2-SCANFIND", torture_smb2_find_scan, 0},
	{"SMB2-GETINFO", torture_smb2_getinfo, 0},
	{"SMB2-SETINFO", torture_smb2_setinfo, 0},
	{"SMB2-FIND", torture_smb2_find, 0},

	/* RAP tests */
	{"RAP-BASIC", torture_rap_basic, 0},

	/* protocol scanners */
	{"SCAN-MAXFID", NULL, run_maxfidtest},
	{"SCAN-PIPE_NUMBER", run_pipe_number, 0},
	{"SCAN-IOCTL",  torture_ioctl_test, 0},
	{"SCAN-RAP",  torture_rap_scan, 0},
	{"SCAN-EAMAX", torture_max_eas, 0},

	/* local (no server) testers */
	{"LOCAL-NTLMSSP", torture_ntlmssp_self_check, 0},
	{"LOCAL-ICONV", torture_local_iconv, 0},
	{"LOCAL-TALLOC", torture_local_talloc, 0},
	{"LOCAL-MESSAGING", torture_local_messaging, 0},
	{"LOCAL-IRPC",  torture_local_irpc, 0},
	{"LOCAL-BINDING", torture_local_binding_string, 0},
	{"LOCAL-STRLIST", torture_local_util_strlist, 0},
	{"LOCAL-FILE", torture_local_util_file, 0},
	{"LOCAL-IDTREE", torture_local_idtree, 0},
	{"LOCAL-SOCKET", torture_local_socket, 0},
	{"LOCAL-PAC", torture_pac, 0},
	{"LOCAL-REGISTRY", torture_registry, 0},
	{"LOCAL-RESOLVE", torture_local_resolve, 0},
	{"LOCAL-SDDL", torture_local_sddl, 0},
	{"LOCAL-NDR", torture_local_ndr, 0},

	/* ldap testers */
	{"LDAP-BASIC", torture_ldap_basic, 0},
	{"LDAP-CLDAP", torture_cldap, 0},

	/* nbt tests */
	{"NBT-REGISTER", torture_nbt_register, 0},
	{"NBT-WINS", torture_nbt_wins, 0},
	{"NBT-DGRAM", torture_nbt_dgram, 0},
	{"NBT-BROWSE", torture_nbt_browse, 0},
	{"NBT-WINSREPLICATION-SIMPLE", torture_nbt_winsreplication_simple, 0},
	{"NBT-WINSREPLICATION-REPLICA", torture_nbt_winsreplication_replica, 0},
	{"NBT-WINSREPLICATION-OWNED", torture_nbt_winsreplication_owned, 0},
	
	{NULL, NULL, 0}};

static void register_builtin_ops(void)
{
	int i;
	for (i = 0; builtin_torture_ops[i].name; i++) {
		register_torture_op(builtin_torture_ops[i].name, 
							builtin_torture_ops[i].fn, 
							builtin_torture_ops[i].multi_fn);
	}
}

struct torture_op *torture_ops = NULL;

_PUBLIC_ NTSTATUS register_torture_op(const char *name, BOOL (*fn)(struct torture_context *), BOOL (*multi_fn)(struct smbcli_state *, int ))
{
	struct torture_op *op, *p;
	
	op = talloc(talloc_autofree_context(), struct torture_op);

	op->name = talloc_strdup(op, name);
	op->fn = fn;
	op->multi_fn = multi_fn;

	for (p = torture_ops; p; p = p->next) {
		if (strcmp(p->name, op->name) == 0) {
			/* Check for duplicates */
			DEBUG(0,("There already is a torture op registered with the name %s!\n", name));
			talloc_free(op);
			return NT_STATUS_OBJECT_NAME_COLLISION;
		}

		if (strcmp(p->name, op->name) < 0 && 
			(!p->next || strcmp(p->next->name, op->name) > 0)) {
			DLIST_ADD_AFTER(torture_ops, op, p);
			return NT_STATUS_OK;
		}
	}

	DLIST_ADD(torture_ops, op);
	
	return NT_STATUS_OK;
}

int torture_init(void)
{
	init_module_fn static_init[] = STATIC_torture_MODULES;
	init_module_fn *shared_init = load_samba_modules(NULL, "torture");
	
	register_builtin_ops();

	run_init_functions(static_init);
	run_init_functions(shared_init);

	talloc_free(shared_init);

	return 0;
}