locktest.c

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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 "lib/cmdline/popt_common.h"
#include "lib/events/events.h"
#include "system/filesys.h"
#include "system/time.h"
#include "pstring.h"
#include "auth/credentials/credentials.h"
#include "auth/gensec/gensec.h"
#include "libcli/libcli.h"
#include "param/param.h"
#include "dynconfig/dynconfig.h"
#include "libcli/resolve/resolve.h"

static int numops = 1000;
static int showall;
static int analyze;
static int hide_unlock_fails;
static int use_oplocks;
static uint_t lock_range = 100;
static uint_t lock_base = 0;
static uint_t min_length = 0;
static int exact_error_codes;
static int zero_zero;

#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

static struct cli_credentials *servers[NSERVERS];

enum lock_op {OP_LOCK, OP_UNLOCK, OP_REOPEN};

struct record {
	enum lock_op lock_op;
	enum brl_type lock_type;
	char conn, f;
	uint64_t start, len;
	char needed;
	uint16_t pid;
};

#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;

/***************************************************** 
return a connection to a server
*******************************************************/
static struct smbcli_state *connect_one(struct event_context *ev,
					struct loadparm_context *lp_ctx,
					char *share, int snum, int conn)
{
	struct smbcli_state *c;
	fstring server, myname;
	NTSTATUS status;
	int retries = 10;
	struct smbcli_options options;

	lp_smbcli_options(lp_ctx, &options);

	printf("connect_one(%s, %d, %d)\n", share, snum, conn);

	fstrcpy(server,share+2);
	share = strchr_m(server,'\\');
	if (!share) return NULL;
	*share = 0;
	share++;

	if (snum == 0) {
		char **unc_list = NULL;
		int num_unc_names;
		const char *p;
		p = lp_parm_string(lp_ctx, NULL, "torture", "unclist");
		if (p) {
			char *h, *s;
			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);
			}

			if (!smbcli_parse_unc(unc_list[conn % num_unc_names],
					      NULL, &h, &s)) {
				printf("Failed to parse UNC name %s\n",
				       unc_list[conn % num_unc_names]);
				exit(1);
			}
			fstrcpy(server, h);
			fstrcpy(share, s);
		}
	}


	slprintf(myname,sizeof(myname), "lock-%u-%u", getpid(), snum);
	cli_credentials_set_workstation(servers[snum], myname, CRED_SPECIFIED);

	do {
		printf("\\\\%s\\%s\n", server, share);
		status = smbcli_full_connection(NULL, &c, 
						server, 
						lp_smb_ports(lp_ctx),
						share, NULL,
						servers[snum], 
						lp_resolve_context(lp_ctx),
						ev, &options);
		if (!NT_STATUS_IS_OK(status)) {
			sleep(2);
		}
	} while (!NT_STATUS_IS_OK(status) && retries--);

	if (!NT_STATUS_IS_OK(status)) {
		return NULL;
	}

	return c;
}


static void reconnect(struct event_context *ev,
		      struct loadparm_context *lp_ctx,
		      struct smbcli_state *cli[NSERVERS][NCONNECTIONS], int 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] != -1) {
					smbcli_close(cli[server][conn]->tree, fnum[server][conn][f]);
					fnum[server][conn][f] = -1;
				}
			}
			talloc_free(cli[server][conn]);
		}
		cli[server][conn] = connect_one(ev, lp_ctx, share[server], 
						server, conn);
		if (!cli[server][conn]) {
			DEBUG(0,("Failed to connect to %s\n", share[server]));
			exit(1);
		}
	}
}



static bool test_one(struct smbcli_state *cli[NSERVERS][NCONNECTIONS], 
		     int fnum[NSERVERS][NCONNECTIONS][NFILES],
		     struct record *rec)
{
	uint_t conn = rec->conn;
	uint_t 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++) {
			NTSTATUS res;
			struct smbcli_tree *tree=cli[server][conn]->tree;
			int fn=fnum[server][conn][f];

			if (!(tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES)) {
				res=smbcli_lock(tree, fn, start, len, LOCK_TIMEOUT, rec->lock_op);
			} else {
				union smb_lock parms;
				int ltype;
				struct smb_lock_entry lock[1];

				parms.lockx.level = RAW_LOCK_LOCKX;
				parms.lockx.in.file.fnum = fn;
	
				ltype = (rec->lock_op == READ_LOCK? 1 : 0);
				ltype |= LOCKING_ANDX_LARGE_FILES;
				parms.lockx.in.mode = ltype;
				parms.lockx.in.timeout = LOCK_TIMEOUT;
				parms.lockx.in.ulock_cnt = 0;
				parms.lockx.in.lock_cnt = 1;
				lock[0].pid = rec->pid;
				lock[0].offset = start;
				lock[0].count = len;
				parms.lockx.in.locks = &lock[0];

				res = smb_raw_lock(tree, &parms);
			}

			ret[server] = NT_STATUS_IS_OK(res); 
			status[server] = smbcli_nt_error(cli[server][conn]->tree);
			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 (!NT_STATUS_EQUAL(status[0],status[1])) return false;
		break;
		
	case OP_UNLOCK:
		/* unset a lock */
		for (server=0;server<NSERVERS;server++) {
			NTSTATUS res;
			struct smbcli_tree *tree=cli[server][conn]->tree;
			int fn=fnum[server][conn][f];


			if (!(tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES)) {
				res=smbcli_unlock(tree, fn, start, len);
			} else {
				union smb_lock parms;
				struct smb_lock_entry lock[1];

				parms.lockx.level = RAW_LOCK_LOCKX;
				parms.lockx.in.file.fnum = fn;
				parms.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
				parms.lockx.in.timeout = 0;
				parms.lockx.in.ulock_cnt = 1;
				parms.lockx.in.lock_cnt = 0;
				lock[0].pid = rec->pid;
				lock[0].count = len;
				lock[0].offset = start;
				parms.lockx.in.locks = &lock[0];

				res = smb_raw_lock(tree, &parms);
			}

			ret[server] = NT_STATUS_IS_OK(res);
			status[server] = smbcli_nt_error(cli[server][conn]->tree);
		}
		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 (!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++) {
			smbcli_close(cli[server][conn]->tree, fnum[server][conn][f]);
			fnum[server][conn][f] = -1;
		}
		for (server=0;server<NSERVERS;server++) {
			fnum[server][conn][f] = smbcli_open(cli[server][conn]->tree, FILENAME,
							 O_RDWR|O_CREAT,
							 DENY_NONE);
			if (fnum[server][conn][f] == -1) {
				printf("failed to reopen on share%d\n", server);