util_smb.c

/* 
   Unix SMB/CIFS implementation.
   SMB torture tester utility functions
   Copyright (C) Andrew Tridgell 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 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 "lib/cmdline/popt_common.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"
#include "../libcli/smb/smb_constants.h"
#include "libcli/libcli.h"
#include "system/filesys.h"
#include "system/shmem.h"
#include "system/wait.h"
#include "system/time.h"
#include "torture/torture.h"
#include "../lib/util/dlinklist.h"
#include "libcli/resolve/resolve.h"
#include "param/param.h"
#include "libcli/security/security.h"
#include "libcli/util/clilsa.h"
#include "torture/util.h"
#include "libcli/smb/smbXcli_base.h"

/**
  setup a directory ready for a test
*/
_PUBLIC_ bool torture_setup_dir(struct smbcli_state *cli, const char *dname)
{
	smb_raw_exit(cli->session);
	if (smbcli_deltree(cli->tree, dname) == -1 ||
	    NT_STATUS_IS_ERR(smbcli_mkdir(cli->tree, dname))) {
		printf("Unable to setup %s - %s\n", dname, smbcli_errstr(cli->tree));
		return false;
	}
	return true;
}

/*
  create a directory, returning a handle to it
*/
NTSTATUS create_directory_handle(struct smbcli_tree *tree, const char *dname, int *fnum)
{
	NTSTATUS status;
	union smb_open io;
	TALLOC_CTX *mem_ctx;

	mem_ctx = talloc_named_const(tree, 0, "create_directory_handle");

	io.generic.level = RAW_OPEN_NTCREATEX;
	io.ntcreatex.in.root_fid.fnum = 0;
	io.ntcreatex.in.flags = 0;
	io.ntcreatex.in.access_mask = SEC_RIGHTS_FILE_ALL;
	io.ntcreatex.in.create_options = NTCREATEX_OPTIONS_DIRECTORY;
	io.ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
	io.ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE | NTCREATEX_SHARE_ACCESS_DELETE;
	io.ntcreatex.in.alloc_size = 0;
	io.ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN_IF;
	io.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
	io.ntcreatex.in.security_flags = 0;
	io.ntcreatex.in.fname = dname;

	status = smb_raw_open(tree, mem_ctx, &io);
	talloc_free(mem_ctx);

	if (NT_STATUS_IS_OK(status)) {
		*fnum = io.ntcreatex.out.file.fnum;
	}

	return status;
}


/**
  sometimes we need a fairly complex file to work with, so we can test
  all possible attributes. 
*/
_PUBLIC_ int create_complex_file(struct smbcli_state *cli, TALLOC_CTX *mem_ctx, const char *fname)
{
	int fnum;
	char buf[7] = "abc";
	union smb_setfileinfo setfile;
	union smb_fileinfo fileinfo;
	time_t t = (time(NULL) & ~1);
	NTSTATUS status;

	smbcli_unlink(cli->tree, fname);
	fnum = smbcli_nt_create_full(cli->tree, fname, 0, 
				     SEC_RIGHTS_FILE_ALL,
				     FILE_ATTRIBUTE_NORMAL,
				     NTCREATEX_SHARE_ACCESS_DELETE|
				     NTCREATEX_SHARE_ACCESS_READ|
				     NTCREATEX_SHARE_ACCESS_WRITE, 
				     NTCREATEX_DISP_OVERWRITE_IF,
				     0, 0);
	if (fnum == -1) return -1;

	smbcli_write(cli->tree, fnum, 0, buf, 0, sizeof(buf));

	if (strchr(fname, ':') == NULL) {
		/* setup some EAs */
		setfile.generic.level = RAW_SFILEINFO_EA_SET;
		setfile.generic.in.file.fnum = fnum;
		setfile.ea_set.in.num_eas = 2;	
		setfile.ea_set.in.eas = talloc_array(mem_ctx, struct ea_struct, 2);
		setfile.ea_set.in.eas[0].flags = 0;
		setfile.ea_set.in.eas[0].name.s = "EAONE";
		setfile.ea_set.in.eas[0].value = data_blob_talloc(mem_ctx, "VALUE1", 6);
		setfile.ea_set.in.eas[1].flags = 0;
		setfile.ea_set.in.eas[1].name.s = "SECONDEA";
		setfile.ea_set.in.eas[1].value = data_blob_talloc(mem_ctx, "ValueTwo", 8);
		status = smb_raw_setfileinfo(cli->tree, &setfile);
		if (!NT_STATUS_IS_OK(status)) {
			printf("Failed to setup EAs\n");
		}
	}

	/* make sure all the timestamps aren't the same */
	ZERO_STRUCT(setfile);
	setfile.generic.level = RAW_SFILEINFO_BASIC_INFO;
	setfile.generic.in.file.fnum = fnum;

	unix_to_nt_time(&setfile.basic_info.in.create_time,
	    t + 9*30*24*60*60);
	unix_to_nt_time(&setfile.basic_info.in.access_time,
	    t + 6*30*24*60*60);
	unix_to_nt_time(&setfile.basic_info.in.write_time,
	    t + 3*30*24*60*60);

	status = smb_raw_setfileinfo(cli->tree, &setfile);
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to setup file times - %s\n", nt_errstr(status));
	}

	/* make sure all the timestamps aren't the same */
	fileinfo.generic.level = RAW_FILEINFO_BASIC_INFO;
	fileinfo.generic.in.file.fnum = fnum;

	status = smb_raw_fileinfo(cli->tree, mem_ctx, &fileinfo);
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to query file times - %s\n", nt_errstr(status));
	}

	if (setfile.basic_info.in.create_time != fileinfo.basic_info.out.create_time) {
		printf("create_time not setup correctly\n");
	}
	if (setfile.basic_info.in.access_time != fileinfo.basic_info.out.access_time) {
		printf("access_time not setup correctly\n");
	}
	if (setfile.basic_info.in.write_time != fileinfo.basic_info.out.write_time) {
		printf("write_time not setup correctly\n");
	}

	return fnum;
}


/*
  sometimes we need a fairly complex directory to work with, so we can test
  all possible attributes. 
*/
int create_complex_dir(struct smbcli_state *cli, TALLOC_CTX *mem_ctx, const char *dname)
{
	int fnum;
	union smb_setfileinfo setfile;
	union smb_fileinfo fileinfo;
	time_t t = (time(NULL) & ~1);
	NTSTATUS status;

	smbcli_deltree(cli->tree, dname);
	fnum = smbcli_nt_create_full(cli->tree, dname, 0, 
				     SEC_RIGHTS_DIR_ALL,
				     FILE_ATTRIBUTE_DIRECTORY,
				     NTCREATEX_SHARE_ACCESS_READ|
				     NTCREATEX_SHARE_ACCESS_WRITE, 
				     NTCREATEX_DISP_OPEN_IF,
				     NTCREATEX_OPTIONS_DIRECTORY, 0);
	if (fnum == -1) return -1;

	if (strchr(dname, ':') == NULL) {
		/* setup some EAs */
		setfile.generic.level = RAW_SFILEINFO_EA_SET;
		setfile.generic.in.file.fnum = fnum;
		setfile.ea_set.in.num_eas = 2;	
		setfile.ea_set.in.eas = talloc_array(mem_ctx, struct ea_struct, 2);
		setfile.ea_set.in.eas[0].flags = 0;
		setfile.ea_set.in.eas[0].name.s = "EAONE";
		setfile.ea_set.in.eas[0].value = data_blob_talloc(mem_ctx, "VALUE1", 6);
		setfile.ea_set.in.eas[1].flags = 0;
		setfile.ea_set.in.eas[1].name.s = "SECONDEA";
		setfile.ea_set.in.eas[1].value = data_blob_talloc(mem_ctx, "ValueTwo", 8);
		status = smb_raw_setfileinfo(cli->tree, &setfile);
		if (!NT_STATUS_IS_OK(status)) {
			printf("Failed to setup EAs\n");
		}
	}

	/* make sure all the timestamps aren't the same */
	ZERO_STRUCT(setfile);
	setfile.generic.level = RAW_SFILEINFO_BASIC_INFO;
	setfile.generic.in.file.fnum = fnum;

	unix_to_nt_time(&setfile.basic_info.in.create_time,
	    t + 9*30*24*60*60);
	unix_to_nt_time(&setfile.basic_info.in.access_time,
	    t + 6*30*24*60*60);
	unix_to_nt_time(&setfile.basic_info.in.write_time,
	    t + 3*30*24*60*60);

	status = smb_raw_setfileinfo(cli->tree, &setfile);
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to setup file times - %s\n", nt_errstr(status));
	}

	/* make sure all the timestamps aren't the same */
	fileinfo.generic.level = RAW_FILEINFO_BASIC_INFO;
	fileinfo.generic.in.file.fnum = fnum;

	status = smb_raw_fileinfo(cli->tree, mem_ctx, &fileinfo);
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to query file times - %s\n", nt_errstr(status));
	}

	if (setfile.basic_info.in.create_time != fileinfo.basic_info.out.create_time) {
		printf("create_time not setup correctly\n");
	}
	if (setfile.basic_info.in.access_time != fileinfo.basic_info.out.access_time) {
		printf("access_time not setup correctly\n");
	}
	if (setfile.basic_info.in.write_time != fileinfo.basic_info.out.write_time) {
		printf("write_time not setup correctly\n");
	}

	return fnum;
}

/**
  check that a wire string matches the flags specified 
  not 100% accurate, but close enough for testing
*/
bool wire_bad_flags(struct smb_wire_string *str, int flags, 
		    struct smbcli_transport *transport)
{
	bool server_unicode;
	int len;
	if (!str || !str->s) return true;
	len = strlen(str->s);
	if (flags & STR_TERMINATE) len++;

	server_unicode = (transport->negotiate.capabilities&CAP_UNICODE)?true:false;
	if (getenv("CLI_FORCE_ASCII") || !transport->options.unicode) {
		server_unicode = false;
	}

	if ((flags & STR_UNICODE) || server_unicode) {
		len *= 2;
	} else if (flags & STR_TERMINATE_ASCII) {
		len++;
	}
	if (str->private_length != len) {
		printf("Expected wire_length %d but got %d for '%s'\n", 
		       len, str->private_length, str->s);
		return true;
	}
	return false;
}

/*
  dump a all_info QFILEINFO structure
*/
void dump_all_info(TALLOC_CTX *mem_ctx, union smb_fileinfo *finfo)
{
	d_printf("\tcreate_time:    %s\n", nt_time_string(mem_ctx, finfo->all_info.out.create_time));
	d_printf("\taccess_time:    %s\n", nt_time_string(mem_ctx, finfo->all_info.out.access_time));
	d_printf("\twrite_time:     %s\n", nt_time_string(mem_ctx, finfo->all_info.out.write_time));
	d_printf("\tchange_time:    %s\n", nt_time_string(mem_ctx, finfo->all_info.out.change_time));
	d_printf("\tattrib:         0x%x\n", finfo->all_info.out.attrib);
	d_printf("\talloc_size:     %llu\n", (long long)finfo->all_info.out.alloc_size);
	d_printf("\tsize:           %llu\n", (long long)finfo->all_info.out.size);
	d_printf("\tnlink:          %u\n", finfo->all_info.out.nlink);
	d_printf("\tdelete_pending: %u\n", finfo->all_info.out.delete_pending);
	d_printf("\tdirectory:      %u\n", finfo->all_info.out.directory);
	d_printf("\tea_size:        %u\n", finfo->all_info.out.ea_size);
	d_printf("\tfname:          '%s'\n", finfo->all_info.out.fname.s);
}

/*
  dump file infor by name
*/
void torture_all_info(struct smbcli_tree *tree, const char *fname)
{
	TALLOC_CTX *mem_ctx = talloc_named(tree, 0, "%s", fname);
	union smb_fileinfo finfo;
	NTSTATUS status;

	finfo.generic.level = RAW_FILEINFO_ALL_INFO;
	finfo.generic.in.file.path = fname;
	status = smb_raw_pathinfo(tree, mem_ctx, &finfo);
	if (!NT_STATUS_IS_OK(status)) {
		d_printf("%s - %s\n", fname, nt_errstr(status));
		return;
	}

	d_printf("%s:\n", fname);
	dump_all_info(mem_ctx, &finfo);
	talloc_free(mem_ctx);
}


/*
  set a attribute on a file
*/
bool torture_set_file_attribute(struct smbcli_tree *tree, const char *fname, uint16_t attrib)
{
	union smb_setfileinfo sfinfo;
	NTSTATUS status;

	ZERO_STRUCT(sfinfo.basic_info.in);
	sfinfo.basic_info.level = RAW_SFILEINFO_BASIC_INFORMATION;
	sfinfo.basic_info.in.file.path = fname;
	sfinfo.basic_info.in.attrib = attrib;
	status = smb_raw_setpathinfo(tree, &sfinfo);
	return NT_STATUS_IS_OK(status);
}


/*
  set a file descriptor as sparse
*/
NTSTATUS torture_set_sparse(struct smbcli_tree *tree, int fnum)
{
	union smb_ioctl nt;
	NTSTATUS status;
	TALLOC_CTX *mem_ctx;

	mem_ctx = talloc_named_const(tree, 0, "torture_set_sparse");
	if (!mem_ctx) {
		return NT_STATUS_NO_MEMORY;
	}

	nt.ntioctl.level = RAW_IOCTL_NTIOCTL;
	nt.ntioctl.in.function = FSCTL_SET_SPARSE;
	nt.ntioctl.in.file.fnum = fnum;
	nt.ntioctl.in.fsctl = true;
	nt.ntioctl.in.filter = 0;
	nt.ntioctl.in.max_data = 0;
	nt.ntioctl.in.blob = data_blob(NULL, 0);

	status = smb_raw_ioctl(tree, mem_ctx, &nt);

	talloc_free(mem_ctx);

	return status;
}

/*
  check that an EA has the right value 
*/
NTSTATUS torture_check_ea(struct smbcli_state *cli, 
			  const char *fname, const char *eaname, const char *value)
{
	union smb_fileinfo info;
	NTSTATUS status;
	struct ea_name ea;
	TALLOC_CTX *mem_ctx = talloc_new(cli);

	info.ea_list.level = RAW_FILEINFO_EA_LIST;
	info.ea_list.in.file.path = fname;
	info.ea_list.in.num_names = 1;
	info.ea_list.in.ea_names = &ea;

	ea.name.s = eaname;

	status = smb_raw_pathinfo(cli->tree, mem_ctx, &info);
	if (!NT_STATUS_IS_OK(status)) {
		talloc_free(mem_ctx);
		return status;
	}

	if (info.ea_list.out.num_eas != 1) {
		printf("Expected 1 ea in ea_list\n");
		talloc_free(mem_ctx);
		return NT_STATUS_EA_CORRUPT_ERROR;
	}

	if (strcasecmp_m(eaname, info.ea_list.out.eas[0].name.s) != 0) {
		printf("Expected ea '%s' not '%s' in ea_list\n",
		       eaname, info.ea_list.out.eas[0].name.s);
		talloc_free(mem_ctx);
		return NT_STATUS_EA_CORRUPT_ERROR;
	}

	if (value == NULL) {
		if (info.ea_list.out.eas[0].value.length != 0) {
			printf("Expected zero length ea for %s\n", eaname);
			talloc_free(mem_ctx);
			return NT_STATUS_EA_CORRUPT_ERROR;
		}
		talloc_free(mem_ctx);
		return NT_STATUS_OK;
	}

	if (strlen(value) == info.ea_list.out.eas[0].value.length &&
	    memcmp(value, info.ea_list.out.eas[0].value.data,
		   info.ea_list.out.eas[0].value.length) == 0) {
		talloc_free(mem_ctx);
		return NT_STATUS_OK;
	}

	printf("Expected value '%s' not '%*.*s' for ea %s\n",
	       value, 
	       (int)info.ea_list.out.eas[0].value.length,
	       (int)info.ea_list.out.eas[0].value.length,
	       info.ea_list.out.eas[0].value.data,
	       eaname);

	talloc_free(mem_ctx);

	return NT_STATUS_EA_CORRUPT_ERROR;
}

_PUBLIC_ bool torture_open_connection_share(TALLOC_CTX *mem_ctx,
				   struct smbcli_state **c, 
				   struct torture_context *tctx,
				   const char *hostname, 
				   const char *sharename,
				   struct tevent_context *ev)
{
	NTSTATUS status;

	struct smbcli_options options;
	struct smbcli_session_options session_options;

	lpcfg_smbcli_options(tctx->lp_ctx, &options);
	lpcfg_smbcli_session_options(tctx->lp_ctx, &session_options);

	options.use_oplocks = torture_setting_bool(tctx, "use_oplocks", true);
	options.use_level2_oplocks = torture_setting_bool(tctx, "use_level2_oplocks", true);

	status = smbcli_full_connection(mem_ctx, c, hostname, 
					lpcfg_smb_ports(tctx->lp_ctx),
					sharename, NULL,
					lpcfg_socket_options(tctx->lp_ctx),
					popt_get_cmdline_credentials(),
					lpcfg_resolve_context(tctx->lp_ctx),
					ev, &options, &session_options,
					lpcfg_gensec_settings(tctx, tctx->lp_ctx));
	if (!NT_STATUS_IS_OK(status)) {
		printf("Failed to open connection - %s\n", nt_errstr(status));
		return false;
	}

	return true;
}

_PUBLIC_ bool torture_get_conn_index(int conn_index,
				     TALLOC_CTX *mem_ctx,
				     struct torture_context *tctx,
				     char **host, char **share)
{
	char **unc_list = NULL;
	int num_unc_names = 0;
	const char *p;

	(*host) = talloc_strdup(mem_ctx, torture_setting_string(tctx, "host", NULL));
	(*share) = talloc_strdup(mem_ctx, torture_setting_string(tctx, "share", NULL));
	
	p = torture_setting_string(tctx, "unclist", NULL);
	if (!p) {
		return true;
	}

	unc_list = file_lines_load(p, &num_unc_names, 0, NULL);
	if (!unc_list || num_unc_names <= 0) {
		DEBUG(0,("Failed to load unc names list from '%s'\n", p));
		return false;
	}

	p = unc_list[conn_index % num_unc_names];
	if (p[0] != '/' && p[0] != '\\') {
		/* allow UNC lists of hosts */
		(*host) = talloc_strdup(mem_ctx, p);
	} else if (!smbcli_parse_unc(p, mem_ctx, host, share)) {
		DEBUG(0, ("Failed to parse UNC name %s\n",
			  unc_list[conn_index % num_unc_names]));
		return false;
	}

	talloc_free(unc_list);
	return true;
}



_PUBLIC_ bool torture_open_connection_ev(struct smbcli_state **c,
					 int conn_index,
					 struct torture_context *tctx,
					 struct tevent_context *ev)
{
	char *host, *share;
	bool ret;

	if (!torture_get_conn_index(conn_index, ev, tctx, &host, &share)) {
		return false;
	}

	ret = torture_open_connection_share(NULL, c, tctx, host, share, ev);
	talloc_free(host);
	talloc_free(share);

	return ret;
}

_PUBLIC_ bool torture_open_connection(struct smbcli_state **c, struct torture_context *tctx, int conn_index)
{
	return torture_open_connection_ev(c, conn_index, tctx, tctx->ev);
}



_PUBLIC_ bool torture_close_connection(struct smbcli_state *c)
{
	bool ret = true;
	if (!c) return true;
	if (NT_STATUS_IS_ERR(smbcli_tdis(c))) {
		printf("tdis failed (%s)\n", smbcli_errstr(c->tree));
		ret = false;
	}
	talloc_free(c);
	return ret;
}


/* check if the server produced the expected error code */
_PUBLIC_ bool check_error(const char *location, struct smbcli_state *c, 
		 uint8_t eclass, uint32_t ecode, NTSTATUS nterr)
{
	NTSTATUS status;
	
	status = smbcli_nt_error(c->tree);
	if (NT_STATUS_IS_DOS(status)) {
		int classnum, num;
		classnum = NT_STATUS_DOS_CLASS(status);
		num = NT_STATUS_DOS_CODE(status);
                if (eclass != classnum || ecode != num) {
                        printf("unexpected error code %s\n", nt_errstr(status));
                        printf(" expected %s or %s (at %s)\n", 
			       nt_errstr(NT_STATUS_DOS(eclass, ecode)), 
                               nt_errstr(nterr), location);
                        return false;
                }
        } else {
                if (!NT_STATUS_EQUAL(nterr, status)) {
                        printf("unexpected error code %s\n", nt_errstr(status));
                        printf(" expected %s (at %s)\n", nt_errstr(nterr), location);
                        return false;
                }
        }

	return true;
}

static struct smbcli_state *current_cli;
static int procnum; /* records process count number when forking */

static void sigcont(int sig)
{
}

struct child_status {
	pid_t pid;
	bool start;
	enum torture_result result;
	char reason[1024];
};

double torture_create_procs(struct torture_context *tctx,
	bool (*fn)(struct torture_context *, struct smbcli_state *, int),
	bool *result)
{
	int status;
	size_t i;
	struct child_status *child_status;
	size_t synccount;
	size_t tries = 8;
	size_t torture_nprocs = torture_setting_int(tctx, "nprocs", 4);
	double start_time_limit = 10 + (torture_nprocs * 1.5);
	struct timeval tv;

	*result = true;

	synccount = 0;

	signal(SIGCONT, sigcont);

	child_status = (struct child_status *)anonymous_shared_allocate(
				sizeof(struct child_status)*torture_nprocs);
	if (child_status == NULL) {
		printf("Failed to setup shared memory\n");
		return -1;
	}

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

	tv = timeval_current();

	for (i=0;i<torture_nprocs;i++) {
		procnum = i;
		if (fork() == 0) {
			char *myname;
			bool ok;

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

			if (asprintf(&myname, "CLIENT%zu", i) == -1) {
				printf("asprintf failed\n");
				return -1;
			}
			lpcfg_set_cmdline(tctx->lp_ctx, "netbios name", myname);
			free(myname);


			while (1) {
				if (torture_open_connection(&current_cli, tctx, i)) {
					break;
				}
				if (tries-- == 0) {
					printf("pid %d failed to start\n", (int)getpid());
					_exit(1);
				}
				smb_msleep(100);	
			}

			child_status[i].pid = getpid();

			pause();

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

			ok = fn(tctx, current_cli, i);
			if (!ok) {
				if (tctx->last_result == TORTURE_OK) {
					torture_result(tctx, TORTURE_ERROR,
						"unknown error: missing "
						"torture_result call?\n");
				}

				child_status[i].result = tctx->last_result;

				if (strlen(tctx->last_reason) > 1023) {
					/* note: reason already contains \n */
					torture_comment(tctx,
						"child %zu (pid %u) failed: %s",
						i,
						(unsigned)child_status[i].pid,
						tctx->last_reason);
				}

				snprintf(child_status[i].reason,
					 1024, "child %zu (pid %u) failed: %s",
					 i, (unsigned)child_status[i].pid,
					 tctx->last_reason);
				/* ensure proper "\n\0" termination: */
				if (child_status[i].reason[1022] != '\0') {
					child_status[i].reason[1022] = '\n';
					child_status[i].reason[1023] = '\0';
				}
			}
			_exit(0);
		}
	}

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

	if (synccount != torture_nprocs) {
		printf("FAILED TO START %zu CLIENTS (started %zu)\n", torture_nprocs, synccount);

		/* cleanup child processes */
		for (i = 0; i < torture_nprocs; i++) {
			if (child_status[i].pid != 0) {
				kill(child_status[i].pid, SIGTERM);
			}
		}

		*result = false;
		return timeval_elapsed(&tv);
	}

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

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

	printf("%zu 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[i].result != TORTURE_OK) {
			*result = false;
			torture_result(tctx, child_status[i].result,
				       "%s", child_status[i].reason);
		}
	}

	return timeval_elapsed(&tv);
}

static bool wrap_smb_multi_test(struct torture_context *torture,
								struct torture_tcase *tcase,
								struct torture_test *test)
{
	bool (*fn)(struct torture_context *, struct smbcli_state *, int ) = test->fn;
	bool result;

	torture_create_procs(torture, fn, &result);

	return result;
}

_PUBLIC_ struct torture_test *torture_suite_add_smb_multi_test(
									struct torture_suite *suite,
									const char *name,
									bool (*run) (struct torture_context *,
												 struct smbcli_state *,
												int i))
{
	struct torture_test *test; 
	struct torture_tcase *tcase;
	
	tcase = torture_suite_add_tcase(suite, name);

	test = talloc(tcase, struct torture_test);

	test->name = talloc_strdup(test, name);
	test->description = NULL;
	test->run = wrap_smb_multi_test;
	test->fn = run;
	test->dangerous = false;

	DLIST_ADD_END(tcase->tests, test);

	return test;

}

static bool wrap_simple_2smb_test(struct torture_context *torture_ctx,
									struct torture_tcase *tcase,
									struct torture_test *test)
{
	bool (*fn) (struct torture_context *, struct smbcli_state *,
				struct smbcli_state *);
	bool ret = true;

	struct smbcli_state *cli1 = NULL, *cli2 = NULL;

	torture_assert_goto(torture_ctx, torture_open_connection(&cli1, torture_ctx, 0), ret, fail, "Failed to open connection");
	torture_assert_goto(torture_ctx, torture_open_connection(&cli2, torture_ctx, 1), ret, fail, "Failed to open connection");

	fn = test->fn;

	ret = fn(torture_ctx, cli1, cli2);
fail:
	talloc_free(cli1);
	talloc_free(cli2);

	return ret;
}



_PUBLIC_ struct torture_test *torture_suite_add_2smb_test(
									struct torture_suite *suite,
									const char *name,
									bool (*run) (struct torture_context *,
												struct smbcli_state *,
												struct smbcli_state *))
{
	struct torture_test *test; 
	struct torture_tcase *tcase;
	
	tcase = torture_suite_add_tcase(suite, name);

	test = talloc(tcase, struct torture_test);

	test->name = talloc_strdup(test, name);
	test->description = NULL;
	test->run = wrap_simple_2smb_test;
	test->fn = run;
	test->dangerous = false;

	DLIST_ADD_END(tcase->tests, test);

	return test;

}

static bool wrap_simple_1smb_test(struct torture_context *torture_ctx,
									struct torture_tcase *tcase,
									struct torture_test *test)
{
	bool (*fn) (struct torture_context *, struct smbcli_state *);
	bool ret = true;

	struct smbcli_state *cli1 = NULL;

	torture_assert_goto(torture_ctx, torture_open_connection(&cli1, torture_ctx, 0), ret, fail, "Failed to open connection");

	fn = test->fn;

	ret = fn(torture_ctx, cli1);
fail:
	talloc_free(cli1);

	return ret;
}

_PUBLIC_ struct torture_test *torture_suite_add_1smb_test(
				struct torture_suite *suite,
				const char *name,
				bool (*run) (struct torture_context *, struct smbcli_state *))
{
	struct torture_test *test; 
	struct torture_tcase *tcase;
	
	tcase = torture_suite_add_tcase(suite, name);

	test = talloc(tcase, struct torture_test);

	test->name = talloc_strdup(test, name);
	test->description = NULL;
	test->run = wrap_simple_1smb_test;
	test->fn = run;
	test->dangerous = false;

	DLIST_ADD_END(tcase->tests, test);

	return test;
}


NTSTATUS torture_second_tcon(TALLOC_CTX *mem_ctx,
			     struct smbcli_session *session,
			     const char *sharename,
			     struct smbcli_tree **res)
{
	union smb_tcon tcon;
	struct smbcli_tree *result;
	TALLOC_CTX *tmp_ctx;
	NTSTATUS status;

	if ((tmp_ctx = talloc_new(mem_ctx)) == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	result = smbcli_tree_init(session, tmp_ctx, false);
	if (result == NULL) {
		talloc_free(tmp_ctx);
		return NT_STATUS_NO_MEMORY;
	}

	tcon.generic.level = RAW_TCON_TCONX;
	tcon.tconx.in.flags = TCONX_FLAG_EXTENDED_RESPONSE;
	tcon.tconx.in.flags |= TCONX_FLAG_EXTENDED_SIGNATURES;

	/* Ignore share mode security here */
	tcon.tconx.in.password = data_blob(NULL, 0);
	tcon.tconx.in.path = sharename;
	tcon.tconx.in.device = "?????";

	status = smb_raw_tcon(result, tmp_ctx, &tcon);
	if (!NT_STATUS_IS_OK(status)) {
		talloc_free(tmp_ctx);
		return status;
	}

	result->tid = tcon.tconx.out.tid;

	if (tcon.tconx.out.options & SMB_EXTENDED_SIGNATURES) {
		smb1cli_session_protect_session_key(result->session->smbXcli);
	}

	*res = talloc_steal(mem_ctx, result);
	talloc_free(tmp_ctx);
	return NT_STATUS_OK;
}

/* 
   a wrapper around smblsa_sid_check_privilege, that tries to take
   account of the fact that the lsa privileges calls don't expand
   group memberships, using an explicit check for administrator. There
   must be a better way ...
 */
NTSTATUS torture_check_privilege(struct smbcli_state *cli, 
				 const char *sid_str,
				 const char *privilege)
{
	struct dom_sid *sid;
	TALLOC_CTX *tmp_ctx = talloc_new(cli);
	uint32_t rid;
	NTSTATUS status;

	sid = dom_sid_parse_talloc(tmp_ctx, sid_str);
	if (sid == NULL) {
		talloc_free(tmp_ctx);
		return NT_STATUS_INVALID_SID;
	}

	status = dom_sid_split_rid(tmp_ctx, sid, NULL, &rid);
	if (!NT_STATUS_IS_OK(status)) {
		TALLOC_FREE(tmp_ctx);
		return status;
	}

	if (rid == DOMAIN_RID_ADMINISTRATOR) {
		/* assume the administrator has them all */
		return NT_STATUS_OK;
	}

	talloc_free(tmp_ctx);

	return smblsa_sid_check_privilege(cli, sid_str, privilege);
}